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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Control System [2GR-FE] - Diagnostic Codes (3 Of 3) & Circuit Tests) >> SFI System >> DTC P1604: Startability Malfunction [12/2015 - 08/2016] >> Procedure

DTC P1604: Startability Malfunction [12/2015 - 08/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ANY OTHER DTCS OUTPUT AND RECORD FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Enter the following menus: Powertrain / Engine / Trouble Codes.
    4. Read the DTCs and record the Freeze Frame Data.

      HINT: 

      • This freeze frame data shows the actual engine conditions when engine starting trouble occurred.
      • When confirming the freeze frame data, be sure to check all 5 data sets of freeze frame data.
      • The fourth set of freeze frame data is the data recorded when the DTC is stored.
      GTY303456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a DTC is stored
      *b 0.5 seconds
      *c Freeze frame data recorded point
      RESULT

      Result Proceed to
      Only DTC P1604 is output A
      DTCs other than P1604 are output B

    Result: 

    B 

    GO TO DTC CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2015 - 08/2016] )

    Result: 

    A 

    See step  2

  2. CHECK ENGINE IMMOBILISER SYSTEM 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Immobiliser Fuel Cut.
    5. Read the value displayed on the Techstream.

      OK

      Immobiliser Fuel Cut is OFF

      RESULT

      Result Proceed to
      OK A
      NG
      (w/o Smart Key System)      		 B
      NG
      (w/ Smart Key System)      		 C

      HINT: 

      • If the engine is started immediately after reconnecting the battery terminal, the engine may stall immediately after it starts due to the intercommunication process between each ECU. For this reason, when starting the engine after reconnecting the battery terminal, first turn the ignition switch to ON and then wait several seconds for the communication process to complete before starting the engine.
      • When this operation causes DTC P1604 to be stored, this is due to normal operation of the immobiliser system and does not indicate a malfunction, so clear the DTC and return the vehicle to the customer.

    Result: 

    B 

    REPAIR ENGINE IMMOBILISER SYSTEM (W/O SMART KEY SYSTEM) 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2015 - 08/2016] )

    Result: 

    C 

    REPAIR ENGINE IMMOBILISER SYSTEM (W/ SMART KEY SYSTEM) 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2015 - 08/2016] )

    Result: 

    A 

    See step  3

  3. CHECK MALFUNCTION CONDITION 
    1. Confirm the problem symptoms.
      RESULT

      Result Proceed to
      Freeze frame data exists, but the starting difficulty cannot be reproduced and it is unknown what kind of starting difficulty occurred A
      The problem symptoms can be reproduced, or the malfunction conditions are known B

    Result: 

    B 

    See step  25

    Result: 

    A 

    See step  4

  4. READ FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Refer to FREEZE FRAME DATA [12/2015 - 08/2016] ).
      RESULT

      Freeze Frame Data Item Suspected Area Proceed to
      Engine Speed Battery Voltage
      All 5 sets of freeze frame data are 0 rpm (no engine cranking at all) Minimum voltage is less than 5 V Battery fully depleted A
      Minimum voltage is 5 V or higher
      • Starter malfunction
      • Crankshaft position sensor system
      • Excess engine friction
      • ECM
      		 B
      60 to 250 rpm (engine cranks but no initial combustion) -
      • Fuel pump control system
      • Ignition system
      • Engine coolant temperature sensor
      • Fuel injection system
      		 C
      250 rpm or higher (combustion occurs but initial combustion and starter turnoff occur late) -
      • Engine assembly
      • Fuel injection system
      • Fuel pump control system
      		 D
      RESULT

      Freeze Frame Data Item Suspected Area Proceed to
      Low Rev for Eng Start
      ON exists
      • Intake system connections
      • Throttle body with motor assembly
      • Camshaft timing oil control valve assembly (for intake side of bank 1, 2)
      • Camshaft timing oil control valve assembly (for exhaust side of bank 1, 2)
      • Mass air flow meter
      		 E

      HINT: 

      When DTC P1604 is stored, either "Engine Start Hesitation"*1 or "Low Rev for Eng Start"*2 in the Freeze Frame Data will be ON. If "Low Rev for Eng Start" is ON, proceed to E.

      *1: This value turns ON when the engine speed does not reach a certain value for a certain period of time when starting the engine.

      *2: This value turns ON when the engine stalls immediately after starting the engine. If "Low Rev for Eng Start" is ON, as there is a possibility that the low engine speed or engine stall was caused by the user, confirm the following freeze frame data items.

      • Immobiliser Fuel Cut
      • Engine Speed (Starter Off)
      • Shift SW Status (R, D Range)

    Result: 

    A 

    CHARGE OR REPLACE BATTERY 

    Result: 

    C 

    See step  10

    Result: 

    D 

    See step  15

    Result: 

    E 

    See step  51

    Result: 

    B 

    See step  5

  5. READ FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Refer to FREEZE FRAME DATA [12/2015 - 08/2016] ).
      RESULT

      Freeze Frame Data Item Result Suspected Area Proceed to
      Battery Voltage Minimum voltage is 6 V or higher and voltage does not fluctuate*1 Starter system A*5
      B*6
      Minimum voltage is 6 V or higher and voltage fluctuates*2, *3
      • Crankshaft position sensor system
      • ECM
      		 C
      Minimum voltage is 5 to 6 V*4
      • Excess engine friction
      • Battery fully depleted
      		 D

      HINT: 

      • *1: The 5 sets of freeze frame data show approximately the same battery voltage.
        GTY298040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • *2: The 5 sets of freeze frame data show different battery voltages.
      • *3: If the voltage fluctuates, it can be determined that cranking is being performed. When the engine speed is 0 rpm, the crankshaft position sensor system and/or the ECM may be malfunctioning.
      • *4: There may be excess engine friction. Make sure that the crankshaft rotates smoothly when turning it by hand. Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.
      • *5: w/o Smart key system
      • *6: w/ Smart key system
        TEXT IN ILLUSTRATION

        *a Freeze Frame Data
        *b Voltage does not Fluctuate
        *c Voltage Fluctuates

    Result: 

    A 

    CHECK STARTER SIGNAL CIRCUIT (W/O SMART KEY SYSTEM) 

    (Refer to Starter Signal Circuit [12/2015 - 08/2016] )

    Result: 

    B 

    CHECK CRANKING HOLDING FUNCTION CIRCUIT (W/ SMART KEY SYSTEM) 

    (Refer to Cranking Holding Function Circuit [12/2015 - 08/2016] )

    Result: 

    D 

    CHECK AND REPAIR ENGINE OR BATTERY 

    Result: 

    C 

    See step  6

  6. CHECK CRANKSHAFT POSITION SENSOR INSTALLATION 
    1. Check the tightening and installation condition of the crankshaft position sensor bolt.
    2. Check the connection of the crankshaft position sensor connector.

    Result: 

    NG 

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  7

  7. CHECK CRANKSHAFT POSITION SENSOR 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Check for oil on the connector terminals.

      OK

      No oil on the terminals.

    Result: 

    NG 

    REPLACE CRANKSHAFT POSITION SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B15-1 - B1-110 (NE+) Always Below 1 Ω
      B15-2 - B1-111 (NE-) Always Below 1 Ω
      B15-1 or B1-110 (NE+) - Body ground Always 10 kΩ or higher
      B15-2 or B1-111 (NE-) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  10. READ FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Refer to FREEZE FRAME DATA [12/2015 - 08/2016] ).
      RESULT

      Freeze Frame Data Item Suspected Area Proceed to
      Coolant Temp, Ambient Temperature, Intake Air Coolant Temp, Ambient Temperature Fuel Pump/Speed Status
      Difference between Coolant Temp, Ambient Temperature and Intake Air is 10°C (18°F) or more*1 Coolant Temp is 125°C (257°F) or more, or lower than Ambient Temperature by 15°C (27°F) or more - Engine coolant temperature sensor A
      Other than above All 5 sets of freeze frame data are ON - B
      At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system C
      Difference between Coolant Temp, Ambient Temperature and Intake Air is less than 10°C (18°F)*2 - At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system C
      All 5 sets of freeze frame data are ON - B

      HINT: 

      • *1: A long time had not elapsed after stopping the engine.
      • *2: A long time had elapsed after stopping the engine.

    Result: 

    A 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    C 

    CHECK FUEL PUMP CONTROL CIRCUIT 

    (Refer to Fuel Pump Control Circuit [12/2015 - 08/2016] )

    Result: 

    B 

    See step  11

  11. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    GTY721273Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the Techstream to the DLC3.
    2. Disconnect the fuel pump connector.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      g2-4 (B) - Body ground Active Test is being performed 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Fuel Pump Connector)

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    CHECK FUEL PUMP CONTROL CIRCUIT 

    (Refer to Fuel Pump Control Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  12

  12. CHECK TERMINAL VOLTAGE (FUEL INJECTOR ASSEMBLY POWER SOURCE) 
    1. Disconnect the fuel injector assembly connectors.
      GTY722508Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      B7-2 - Body ground Ignition switch ON 11 to 14 V
      B8-2 - Body ground Ignition switch ON 11 to 14 V
      B9-2 - Body ground Ignition switch ON 11 to 14 V
      B10-2 - Body ground Ignition switch ON 11 to 14 V
      B11-2 - Body ground Ignition switch ON 11 to 14 V
      B12-2 - Body ground Ignition switch ON 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Fuel Injector Assembly)

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

    Result: 

    NG 

    CHECK ECM POWER SOURCE CIRCUIT 

    (Refer to ECM Power Source Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  13

  13. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for fuel leakage from the fuel pipes.
      RESULT

      Result Proceed to
      Fuel leakage or signs of fuel leakage are present A
      No fuel leakage or signs of fuel leakage B

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
      • Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

    Result: 

    A 

    REPAIR OR REPLACE FUEL LINE 

    Result: 

    B 

    See step  14

  14. CHECK FUEL SYSTEM 
    1. Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter, and inside the fuel tank), and for signs that the fuel pump was stuck.
      RESULT

      Result Proceed to
      There is foreign matter or signs that fuel pump was stuck A
      There is no foreign matter and no signs that fuel pump was stuck B

    Result: 

    A 

    REPAIR OR REPLACE FUEL SYSTEM 

    Result: 

    B 

    See step  24

  15. READ FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Refer to FREEZE FRAME DATA [12/2015 - 08/2016] ).
      RESULT

      Freeze Frame Data Item Suspected Area Proceed to
      Coolant Temp, Ambient Temperature, Intake Air Coolant Temp, Ambient Temperature Long FT #1 Engine Speed
      Difference between Coolant Temp, Ambient Temperature and Intake Air is 10°C (18°F) or more Coolant Temp is 125°C (257°F) or more, or lower than Ambient Temperature by 15°C (27°F) or more - - Engine coolant temperature sensor A
      Other than above -15% or less, or +15% or more -
      • Fuel pump control system
      • Fuel injector assembly
      		 B
      -15 to +15% Minimum speed is 300 rpm or more*1 Engine assembly C
      Minimum speed is below 300 rpm
      • Fuel system
      • Intake air system
      		 D
      Difference between Coolant Temp, Ambient Temperature and Intake Air is less than 10°C (18°F) - -15% or less, or +15% or more -
      • Fuel pump control system
      • Fuel injector assembly
      		 B
      -15 to +15% Minimum speed is 300 rpm or more*1 Engine assembly C
      Minimum speed is below 300 rpm
      • Fuel system
      • Intake air system
      		 D

      HINT: 

      *1: Compression loss may have occurred in the engine assembly.

    Result: 

    A 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    C 

    CHECK AND REPAIR ENGINE ASSEMBLY 

    Result: 

    D 

    See step  18

    Result: 

    B 

    See step  16

  16. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Check that no carbon is stuck to the fuel injector assembly.

      OK

      No carbon present.

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  17

  17. CHECK FUEL SYSTEM 
    1. Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter, and inside the fuel tank), and for signs that the fuel pump was stuck.
      RESULT

      Result Proceed to
      There is foreign matter or signs that fuel pump was stuck A
      There is no foreign matter and no signs that fuel pump was stuck B

    Result: 

    A 

    REPAIR OR REPLACE FUEL SYSTEM 

    Result: 

    B 

    See step  24

  18. READ FREEZE FRAME DATA 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (Refer to FREEZE FRAME DATA [12/2015 - 08/2016] ).
      RESULT

      Freeze Frame Data Item Result Suspected Area Proceed to
      Coolant Temp Engine coolant temperature is 40°C (104°F) or less*1 Pressure regulator A
      Engine coolant temperature is 40 to 90°C (104 to 194°F)*2 Fuel injector assembly B
      Engine coolant temperature is 90°C (194°F) or more*3 Pressure regulator A

      HINT: 

      *1: If the engine coolant temperature is 40°C (104°F) or less (after stopping the engine and the vehicle is not driven for a long period of time), the pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

      *2: If the engine coolant temperature is 40 to 90°C (104 to 194°F) (15 to 120 minutes have passed after stopping the engine), there may be fuel leaking from a fuel injector assembly.

      *3: If the engine coolant temperature is 90°C (194°F) or more (2 to 5 minutes have passed after stopping the engine), there may be a problem with the pressure regulator failing to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

    Result: 

    B 

    See step  20

    Result: 

    A 

    See step  19

  19. CHECK FUEL PRESSURE 

    HINT: 

    For the fuel pressure inspection, refer to the following procedures (Refer to PROCEDURE - Step 2 ).

    1. Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

      Standard

      147 kPa (1.5 kgf/cm2 ) or higher (5 minutes after stopping the engine)

      HINT: 

      If the engine cannot be started, read the values after cranking the engine.

      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    A 

    REPLACE FUEL PUMP 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  24

  20. CHECK FUEL INJECTOR ASSEMBLY 
    1. Clean the inside of the surge tank with compressed air.
    2. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.
      RESULT

      Result Proceed to
      4000 ppm or higher A
      Less than 4000 ppm B

      HINT: 

      If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.

    Result: 

    B 

    See step  22

    Result: 

    A 

    See step  21

  21. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Inspect the fuel injector assembly (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  22

  22. CHECK THROTTLE BODY WITH MOTOR ASSEMBLY 
    1. Check if carbon is in the air flow passage.
      RESULT

      Result Proceed to
      Carbon in passage A
      No carbon present B

      HINT: 

      Perform "Inspection After Repair" after cleaning or repairing the throttle body with motor assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    A 

    CLEAN OR REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  23

  23. CHECK INTAKE SYSTEM 
    1. Check the intake system for vacuum leak (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

      OK

      No leak in intake system.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the intake system (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPAIR OR REPLACE INTAKE SYSTEM 

    Result: 

    OK 

    See step  24

  24. PERFORM SIMULATION TEST 
    1. Check if the engine can be started.
      RESULT

      Result Proceed to
      Engine can be started A
      Engine cannot be started B

    Result: 

    A 

    END 

    Result: 

    B 

    See step  25

  25. CONFIRM PROBLEM SYMPTOM 
    1. Confirm the problem symptoms.

      HINT: 

      The problem symptoms below can be determined by reading the freeze frame data.

      RESULT

      Problem Symptom Suspected Area Proceed to
      The engine does not crank
      • Battery fully depleted
      • Starter assembly (includes pinion gear wear or tooth damage)
      • Starter system
      • Engine assembly (excess friction)
      • Drive plate wear or tooth damage
      		 A
      Abnormal cranking speed
      • Battery fully depleted
      • Starter
      • Engine assembly (excess friction, compression loss)
      		 B
      There is no initial combustion (combustion does not occur even once)*1
      • Pressure regulator fuel pressure maintenance
      • Fuel injector assembly leak
      • Fuel leak from fuel line
      • Fuel pump control system
      • Fuel pump
      • Spark plug
      • Crankshaft position sensor system
      • Ignition coil system
      		 C
      The engine stalls after starter turnoff (engine stalls immediately after the first time the engine speed increases)*2
      • Intake system connections
      • Throttle body with motor assembly
      • Camshaft timing oil control valve assembly (for intake side of bank 1, 2)
      • Camshaft timing oil control valve assembly (for exhaust side of bank 1, 2)
      • Mass air flow meter
      		 D
      The initial combustion and starter turnoff occur late*3
      • Engine coolant temperature sensor
      • Mass air flow meter
      • Air fuel ratio sensor
      • Fuel injector assembly
      • Spark plug
      • Fuel pump
      • Fuel pump control system
      		 E

      HINT: 

      • If there is hesitation (cranking speed is slow and combustion occurs before passing TDC) during the initial cranking period, the battery charge may be insufficient or the starter may be malfunctioning.
      • *1: If there is no initial combustion, a wire harness may be malfunctioning, or the ignition or fuel system may be malfunctioning.
      • *2: If the engine stalls after starter turnoff, the air fuel ratio may be incorrect or the camshaft timing oil control valve may have a problem returning.
      • *3: If the initial combustion and starter turnoff occur late, the fuel injection volume may be incorrect (too low or too high).

    Result: 

    B 

    See step  32

    Result: 

    C 

    See step  35

    Result: 

    D 

    See step  51

    Result: 

    E 

    See step  58

    Result: 

    A 

    See step  26

  26. PERFORM SIMULATION TEST 
    1. When cranking the engine, check for a noise indicating that the starter pinion gear is extending, and check that the starter pinion gear is not spinning freely.
      RESULT

      Problem Symptom Suspected Area Proceed to
      A noise indicating that the starter pinion gear is extending is heard and the starter pinion gear is not spinning freely.*1
      • Battery
      • Excess engine friction
      • Starter
      		 A
      A noise indicating that the starter pinion gear is extending is heard but the starter pinion gear is spinning freely.
      • Drive plate
      • Starter
      		 B
      A noise indicating that the starter pinion gear is extending is not heard
      • Battery
      • Starter assembly
      • Starter system
      		 C

      HINT: 

      *1: The battery may be fully depleted or there may be excess engine friction.

    Result: 

    B 

    See step  29

    Result: 

    C 

    See step  30

    Result: 

    A 

    See step  27

  27. INSPECT BATTERY 
    1. Inspect the battery (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

    Result: 

    NG 

    CHARGE OR REPLACE BATTERY 

    Result: 

    OK 

    See step  28

  28. CHECK ENGINE ASSEMBLY 
    1. Check that the crankshaft rotates smoothly when rotating it by hand.

      OK

      Crankshaft rotates smoothly.

      HINT: 

      • Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.
      • Perform "Inspection After Repair" after repairing or replacing the engine assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    INSPECT STARTER ASSEMBLY 

    (Refer to INSPECTION [12/2015 - 08/2016] )

    Result: 

    NG 

    REPAIR OR REPLACE ENGINE ASSEMBLY 

  29. CHECK STARTER ASSEMBLY 
    1. Remove the starter assembly (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check for starter pinion gear wear and damage.

      Standard

      There is no wear or damage.

    Result: 

    OK 

    REPLACE DRIVE PLATE AND RING GEAR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPLACE STARTER ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  30. INSPECT BATTERY 
    1. Inspect the battery (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

    Result: 

    NG 

    CHARGE OR REPLACE BATTERY 

    Result: 

    OK 

    See step  31

  31. INSPECT STARTER ASSEMBLY 
    1. Inspect the starter assembly (Refer to INSPECTION [12/2015 - 08/2016] ).
      RESULT

      Result Proceed to
      NG A
      OK
      (w/o Smart Key System)      		 B
      OK
      (w/ Smart Key System)      		 C

    Result: 

    A 

    REPLACE STARTER ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    CHECK STARTER SIGNAL CIRCUIT (W/O SMART KEY SYSTEM) 

    (Refer to Starter Signal Circuit [12/2015 - 08/2016] )

    Result: 

    C 

    CHECK CRANKING HOLDING FUNCTION CIRCUIT (W/ SMART KEY SYSTEM) 

    (Refer to Cranking Holding Function Circuit [12/2015 - 08/2016] )

  32. PERFORM SIMULATION TEST 
    1. Check the cranking speed.
      RESULT

      Problem Symptom Suspected Area Proceed to
      Cranking speed is slow (100 rpm or less)
      • Battery
      • Starter assembly
      • Excess engine friction
      		 A
      Cranking speed is fast (300 rpm or more)*1 Engine compression loss B

      HINT: 

      *1: If the cranking speed is fast, there may be compression loss.

    Result: 

    B 

    CHECK AND REPAIR ENGINE ASSEMBLY 

    Result: 

    A 

    See step  33

  33. INSPECT BATTERY 
    1. Inspect the battery (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

    Result: 

    NG 

    CHARGE OR REPLACE BATTERY 

    Result: 

    OK 

    See step  34

  34. CHECK ENGINE ASSEMBLY 
    1. Check that the crankshaft rotates smoothly when rotating it by hand.

      OK

      Crankshaft rotates smoothly.

      HINT: 

      • Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.
      • Perform "Inspection After Repair" after repairing or replacing the engine assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    REPLACE STARTER ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPAIR OR REPLACE ENGINE ASSEMBLY 

  35. CHECK FUEL INJECTOR ASSEMBLY 
    1. Using a sound scope or screwdriver, check for an injector operating noise while cranking the engine.

      OK

      Fuel injector assembly operating noise is heard.

    Result: 

    NG 

    See step  48

    Result: 

    OK 

    See step  36

  36. CHECK FUEL PRESSURE 
    1. Check the fuel pressure (Refer to PROCEDURE - Step 2 ).

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  37

  37. INSPECT SPARK PLUG AND SPARK 
    1. Inspect for sparks (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

    Result: 

    NG 

    See step  41

    Result: 

    OK 

    See step  38

  38. CONFIRM VEHICLE CONDITION 
    1. Confirm the conditions present when the malfunction occurred based on the customer problem analysis.
      RESULT

      Problem Symptom Suspected Area Proceed to
      When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator is stuck open A
      When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2 Fuel injector assembly leak B
      When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3 Failure to maintain fuel pressure by pressure regulator A
      Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C*4

      HINT: 

      *1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

      *2: Fuel may be leaking from a fuel injector assembly.

      *3: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

      *4: From step 72, perform fuel system troubleshooting C (steps 73 to 77).

    Result: 

    B 

    See step  40

    Result: 

    C 

    See step  72

    Result: 

    A 

    See step  39

  39. CHECK FUEL PRESSURE 

    HINT: 

    For the fuel pressure inspection, refer to the following procedures (Refer to PROCEDURE - Step 2 ).

    1. Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.
      RESULT

      Result Proceed to
      Less than 147 kPa (1.5 kgf/cm2 ) (5 minutes after stopping the engine) A
      147 kPa (1.5 kgf/cm2 ) or higher (5 minutes after stopping the engine) B*1

      HINT: 

      • If the engine cannot be started, check the fuel pressure after cranking the engine.
      • *1: From step 72, perform fuel system troubleshooting C (steps 73 to 77).

    Result: 

    A 

    REPLACE FUEL PUMP 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  72

  40. CHECK FUEL INJECTOR ASSEMBLY 
    1. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.
      RESULT

      Result Proceed to
      4000 ppm or higher A
      Less than 4000 ppm B*1

      HINT: 

      • If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.
      • *1: From step 72, perform fuel system troubleshooting C (steps 73 to 77).
      • Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    A 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  72

  41. INSPECT SPARK PLUG 
    1. Inspect the spark plugs (Refer to PROCEDURE - Step 2 ).

      HINT: 

      • Even if the spark plug of only one cylinder is malfunctioning, replace the spark plugs of all cylinders.
      • Perform "Inspection After Repair" after replacing the spark plug (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE SPARK PLUG 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  42

  42. READ VALUE USING TECHSTREAM (ENGINE SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
    5. Start the engine.
    6. While running the engine, read the [Engine Speed] value.

      OK

      A value that matches the actual engine speed is constantly output.

      HINT: 

      • Check the engine speed using a line graph.
      • If the engine cannot be started, check the engine speed while cranking the engine.
      • If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.

    Result: 

    NG 

    CHECK CRANKSHAFT POSITION SENSOR CIRCUIT 

    (Refer to DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  43

  43. CHECK TERMINAL VOLTAGE (IGNITION COIL ASSEMBLY POWER SOURCE) 
    1. Disconnect the ignition coil assembly connectors.
      GTY726399Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      B23-1 (+B) - B23-4 (GND) Ignition switch ON 11 to 14 V
      B24-1 (+B) - B24-4 (GND) Ignition switch ON 11 to 14 V
      B25-1 (+B) - B25-4 (GND) Ignition switch ON 11 to 14 V
      B26-1 (+B) - B26-4 (GND) Ignition switch ON 11 to 14 V
      B27-1 (+B) - B27-4 (GND) Ignition switch ON 11 to 14 V
      B28-1 (+B) - B28-4 (GND) Ignition switch ON 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Ignition Coil Assembly)

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

    Result: 

    NG 

    CHECK ECM POWER SOURCE CIRCUIT 

    (Refer to ECM Power Source Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  44

  44. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the B23, B24, B25, B26, B27 and B28 ignition coil assembly connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B23-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B24-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B25-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B26-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B27-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B28-2 (IGF) - B1-104 (IGF1) Always Below 1 Ω
      B23-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher
      B24-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher
      B25-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher
      B26-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher
      B27-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher
      B28-2 (IGF) or B1-104 (IGF1) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • Perform "Inspection After Repair" after replacing the ignition coil assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  45

  45. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the B23, B24, B25, B26, B27 and B28 ignition coil assembly connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B23-3 (IGT1) - B1-40 (IGT1) Always Below 1 Ω
      B24-3 (IGT2) - B1-39 (IGT2) Always Below 1 Ω
      B25-3 (IGT3) - B1-38 (IGT3) Always Below 1 Ω
      B26-3 (IGT4) - B1-37 (IGT4) Always Below 1 Ω
      B27-3 (IGT5) - B1-36 (IGT5) Always Below 1 Ω
      B28-3 (IGT6) - B1-35 (IGT6) Always Below 1 Ω
      B23-3 (IGT1) or B1-40 (IGT1) - Body ground Always 10 kΩ or higher
      B24-3 (IGT2) or B1-39 (IGT2) - Body ground Always 10 kΩ or higher
      B25-3 (IGT3) or B1-38 (IGT3) - Body ground Always 10 kΩ or higher
      B26-3 (IGT4) or B1-37 (IGT4) - Body ground Always 10 kΩ or higher
      B27-3 (IGT5) or B1-36 (IGT5) - Body ground Always 10 kΩ or higher
      B28-3 (IGT6) or B1-35 (IGT6) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • If the wire harness is normal, after replacing the ignition coil assembly, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 72 and perform troubleshooting for the ignition system (steps 78 to 84).

    Result: 

    OK 

    REPLACE IGNITION COIL ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  46. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for an operating sound from the fuel pump.

      OK

      Control the Fuel Pump/Speed Specified Condition
      ON Operating sound heard
      OFF Operating sound not heard

      HINT: 

      Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

    Result: 

    NG 

    CHECK FUEL PUMP CONTROL CIRCUIT 

    (Refer to Fuel Pump Control Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  47

  47. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for fuel leakage from the fuel pipes.
      RESULT

      Result Proceed to
      Fuel leakage or signs of fuel leakage are present A
      No fuel leakage or signs of fuel leakage B

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.
      • If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 72 and perform fuel system troubleshooting (steps 73 to 77).

    Result: 

    A 

    REPAIR OR REPLACE FUEL LINE 

    Result: 

    B 

    CHECK FUEL PUMP CONTROL CIRCUIT 

    (Refer to Fuel Pump Control Circuit [12/2015 - 08/2016] )

  48. READ VALUE USING TECHSTREAM (ENGINE SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
    5. Start the engine.
    6. While running the engine, read the [Engine Speed] value.

      OK

      A value that matches the actual engine speed is constantly output.

      HINT: 

      • Check the engine speed using a line graph.
      • If the engine cannot be started, check the engine speed while cranking the engine.
      • If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.

    Result: 

    NG 

    REPLACE CRANKSHAFT POSITION SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  49

  49. CHECK TERMINAL VOLTAGE (FUEL INJECTOR ASSEMBLY POWER SOURCE) 
    1. Disconnect the fuel injector assembly connectors.
      GTY722508Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      B7-2 - Body ground Ignition switch ON 11 to 14 V
      B8-2 - Body ground Ignition switch ON 11 to 14 V
      B9-2 - Body ground Ignition switch ON 11 to 14 V
      B10-2 - Body ground Ignition switch ON 11 to 14 V
      B11-2 - Body ground Ignition switch ON 11 to 14 V
      B12-2 - Body ground Ignition switch ON 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Fuel Injector Assembly)

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

    Result: 

    NG 

    CHECK ECM POWER SOURCE CIRCUIT 

    (Refer to ECM Power Source Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  50

  50. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) 
    1. Disconnect the B7, B8, B9, B10, B11 and B12 fuel injector assembly connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B7-1 - B1-86 (#10) Always Below 1 Ω
      B8-1 - B1-109 (#20) Always Below 1 Ω
      B9-1 - B1-85 (#30) Always Below 1 Ω
      B10-1 - B1-108 (#40) Always Below 1 Ω
      B11-1 - B1-84 (#50) Always Below 1 Ω
      B12-1 - B1-107 (#60) Always Below 1 Ω
      B7-1 or B1-86 (#10) - Body ground Always 10 kΩ or higher
      B8-1 or B1-109 (#20) - Body ground Always 10 kΩ or higher
      B9-1 or B1-85 (#30) - Body ground Always 10 kΩ or higher
      B10-1 or B1-108 (#40) - Body ground Always 10 kΩ or higher
      B11-1 or B1-84 (#50) - Body ground Always 10 kΩ or higher
      B12-1 - B1-107 (#60) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    OK 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  51. INSPECT MASS AIR FLOW METER 
    1. Inspect the mass air flow meter (Refer to PROCEDURE - Step 6 ).

    Result: 

    NG 

    See step  57

    Result: 

    OK 

    See step  52

  52. CHECK INTAKE SYSTEM 
    1. Check for air leaks in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.] (Refer to ON-VEHICLE INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      • If the accelerator pedal is released after revving the engine, the inspection is easier to perform because the vacuum inside the intake manifold increases and the air suction noise becomes louder.
      • If Short FT and Long FT #1 are largely different from the normal values (differ by more than 15%) when idling (intake air volume is small) and almost the same as the normal values when revving the engine (for example, when maintaining a speed of 3000 rpm) (intake air volume is high), air leakage may be present.

      OK

      There is no air leakage.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the intake system (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPAIR OR REPLACE INTAKE SYSTEM 

    Result: 

    OK 

    See step  53

  53. CHECK THROTTLE BODY WITH MOTOR ASSEMBLY 
    1. Disconnect the B20 throttle body with motor assembly connector.

      HINT: 

      When the connector is disconnected, the vehicle enters fail-safe mode and the throttle valve opening angle is 4 to 7°.

    2. Crank the engine and check that it starts.
      RESULT

      Result Proceed to
      Engine starts A
      Engine does not start B

      HINT: 

      When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs (Refer to DTC CHECK / CLEAR [12/2015 - 08/2016] ).

    Result: 

    B 

    See step  55

    Result: 

    A 

    See step  54

  54. CHECK THROTTLE BODY WITH MOTOR ASSEMBLY 
    1. Check if carbon is in the air flow passage.

      OK

      No carbon present.

      HINT: 

      Perform "Inspection After Repair" after cleaning the throttle body with motor assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY WITH MOTOR ASSEMBLY 

    Result: 

    OK 

    See step  55

  55. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR) 
    1. Performing the Active Test, referring to DTC P0011 inspection procedure (Refer to PROCEDURE - Step 2 ).

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.

    Result: 

    NG 

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE SIDE) 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  56

  56. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT EXHAUST LINEAR) 
    1. Performing the Active Test, referring to DTC P0014 inspection procedure (Refer to PROCEDURE - Step 2 ).
      RESULT

      Result Proceed to
      NG A
      OK B*1

      HINT: 

      • *1: From step 72, perform intake system troubleshooting (steps 85 to 87). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 88 to 95).
      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.

    Result: 

    A 

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST SIDE) 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  72

  57. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) 
    1. Disconnect the B4 mass air flow meter connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B4-5 (VG) - B1-74 (VG) Always Below 1 Ω
      B4-4 (E2G) - B1-75 (E2G) Always Below 1 Ω
      B4-5 (VG) or B1-74 (VG) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • If the wire harness is normal, after replacing the mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 72 and perform intake system troubleshooting (steps 85 to 87). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 88 to 95).
      • Perform "Inspection After Repair" after replacing the mass air flow meter (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    REPLACE MASS AIR FLOW METER 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  58. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Inspect the engine coolant temperature sensor (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      • If the engine coolant temperature sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  59

  59. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) 
    1. Disconnect the B5 engine coolant temperature sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B5-2 - B1-76 (THW) Always Below 1 Ω
      B5-1 - B1-97 (ETHW) Always Below 1 Ω
      B5-2 or B1-76 (THW) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  60

  60. INSPECT MASS AIR FLOW METER 
    1. Inspect the mass air flow meter (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      • If the mass air flow meter is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the mass air flow meter (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE MASS AIR FLOW METER 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  61

  61. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) 
    1. Disconnect the B4 mass air flow meter connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B4-5 (VG) - B1-74 (VG) Always Below 1 Ω
      B4-4 (E2G) - B1-75 (E2G) Always Below 1 Ω
      B4-5 (VG) or B1-74 (VG) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • If the wire harness is normal, after replacing the mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 72 and perform intake system troubleshooting (steps 85 to 87). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 88 to 95).

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  62

  62. READ VALUE USING TECHSTREAM (LONG FT #1, FT #2 - ATMOSPHERE PRESSURE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Long FT #1/Long FT #2 and Atmosphere Pressure.
      RESULT

      Data List Item Result Suspected Area Proceed to
      Long FT #1
      Long FT #2      		 +25% or more or less than -25%
      • Air fuel ratio sensor
      • Mass air flow meter
      • Fuel injector assembly
      • ECM
      		 A
      Atmosphere Pressure 80 kPa or less (when altitude is 0 m)
      Both Data List items listed above Values are other than above - B

    Result: 

    B 

    See step  66

    Result: 

    A 

    See step  63

  63. PERFORM SIMULATION TEST 
    1. Remove the EFI NO. 1 and ETCS fuses from the engine room relay block.
    2. After 60 seconds or more elapse, install the EFI NO. 1 and ETCS fuses.
    3. Check if the engine can be started.
      RESULT

      Result Proceed to
      Engine can be started A
      Engine cannot be started B

    Result: 

    B 

    See step  66

    Result: 

    A 

    See step  64

  64. INSPECT AIR FUEL RATIO SENSOR 
    GTY729176Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the Techstream to the DLC3.
    2. Start the engine.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Fuel System Status #1 and Fuel System Status #2.
    5. Confirm that Fuel System Status #1 and Fuel System Status #2 are both CL.
    6. Enter the following menus: Powertrain / Engine / Data List / AF Lambda B1S1.
    7. Confirm that AF Lambda B1S1 are both within the range of 0.95 to 1.05 when idling.
    8. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F sensor.
    9. Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.

      Standard

      Techstream Display Injection Volume Specified Condition
      AFS Voltage B1S1
      AFS Voltage B2S1      		 12.5% Air fuel ratio sensor output voltage is below 3.1 V
      -12.5% Air fuel ratio sensor output voltage is higher than 3.4 V

      HINT: 

      • The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
      • If the air fuel ratio sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the air fuel ratio sensor (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE AIR FUEL RATIO SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  65

  65. PERFORM SIMULATION TEST 
    1. Check if the idling speed is stable after starting the engine.

      OK

      Speed is stable.

      HINT: 

      • After replacing the fuel injector assembly or mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the mass air flow meter (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    REPLACE MASS AIR FLOW METER 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    NG 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  66. CHECK FUEL PRESSURE 
    1. Check the fuel pressure (Refer to PROCEDURE - Step 2 ).

    Result: 

    NG 

    See step  71

    Result: 

    OK 

    See step  67

  67. INSPECT SPARK PLUG 
    1. Inspect the spark plugs (Refer to PROCEDURE - Step 2 ).
      RESULT

      Result Proceed to
      All cylinders are normal A
      One cylinder is abnormal*1 B
      All cylinders are abnormal*2, *3 C

      HINT: 

      • *1: If one cylinder is abnormal, replace the spark plug of that cylinder and inspect the ignition and fuel system for that cylinder. After performing repairs, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • *2: If all cylinders are abnormal, replace the spark plugs of all cylinders and check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • *3: Engine starting trouble may occur if the vehicle is driven extremely short distances repeatedly.
      • Perform "Inspection After Repair" after replacing the spark plug (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    B 

    REPLACE SPARK PLUG (ABNORMAL CYLINDER) 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    C 

    REPLACE SPARK PLUG (ALL CYLINDER) 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    A 

    See step  68

  68. CONFIRM VEHICLE CONDITION 
    1. Confirm the conditions present when the malfunction occurred based on the customer problem analysis.
      RESULT

      Problem Symptom Suspected Area Proceed to
      When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator is stuck open A
      When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2 Fuel injector assembly leaks B
      When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3 Failure to maintain fuel pressure by pressure regulator A
      Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C*4

      HINT: 

      *1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

      *2: Fuel may be leaking from a fuel injector assembly.

      *3: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

      *4: From step 72, perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.

    Result: 

    B 

    See step  70

    Result: 

    C 

    See step  72

    Result: 

    A 

    See step  69

  69. CHECK FUEL PRESSURE 

    HINT: 

    For the fuel pressure inspection, refer to the following procedures (Refer to PROCEDURE - Step 2 ).

    1. Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.
      RESULT

      Result Proceed to
      Less than 147 kPa (1.5 kgf/cm2 ) (5 minutes after stopping the engine) A
      147 kPa (1.5 kgf/cm2 ) or higher (5 minutes after stopping the engine) B*1

      HINT: 

      • If the engine cannot be started, check the fuel pressure after cranking the engine.
      • *1: From step 72, perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the fuel pump (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    A 

    REPLACE FUEL PUMP 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  72

  70. CHECK FUEL INJECTOR ASSEMBLY 
    1. Clean the inside of the surge tank with compressed air.
    2. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.
      RESULT

      Result Proceed to
      4000 ppm or higher A
      Less than 4000 ppm B*1

      HINT: 

      • If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.
      • *1: From step 72, perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      • Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    A 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  72

  71. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for fuel leakage from the fuel pipes.
      RESULT

      Result Proceed to
      Fuel leakage or signs of fuel leakage are present A
      No fuel leakage or signs of fuel leakage B

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.
      • If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 72 and perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.

    Result: 

    A 

    REPAIR OR REPLACE FUEL LINE 

    Result: 

    B 

    CHECK FUEL PUMP CONTROL CIRCUIT 

    (Refer to Fuel Pump Control Circuit [12/2015 - 08/2016] )

  72. CHECK MALFUNCTION CONDITION 
    1. If the malfunction could not be identified during the inspection in steps 38, 39, 40 and 47, perform fuel system troubleshooting C (steps 73 to 77).
      RESULT

      Performed Step Troubleshooting by System Procedure Proceed to
      Steps 38, 39, 40 and 47 Fuel system troubleshooting C 73 to 77 A
    2. If the malfunction could not be identified during the inspection in step 45, perform ignition system troubleshooting (steps 78 to 84).
      RESULT

      Performed Step Troubleshooting by System Procedure Proceed to
      Step 45 Ignition system troubleshooting 78 to 84 B
    3. If the malfunction could not be identified during the inspection in steps 55, 56 and 57, perform intake air system troubleshooting (steps 85 to 87). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 88 to 95).
      RESULT

      Performed Step Troubleshooting by System Procedure Proceed to
      Step 55, 56, 57 Intake air system troubleshooting 85 to 87 C
      Fuel system troubleshooting A 88 to 95
    4. If the malfunction could not be identified during the inspection in steps 58, 59, 60, 61, 64, 65, 66, 67, 68, 69, 70 and 71, perform fuel system troubleshooting A (steps 96 to 103, fuel system troubleshooting B (steps 104 to 106), intake system troubleshooting (steps 107 to 109), and ignition system troubleshooting (steps 110 to 116), in that order.
      RESULT

      Performed Step Troubleshooting by System Procedure Proceed to
      Steps 58, 59, 60, 61, 64, 65, 66, 67, 68, 69, 70 and 71 Fuel system troubleshooting A 97 to 104 D
      Fuel system troubleshooting B 105 to 107
      Intake air system troubleshooting 108 to 110
      Ignition system troubleshooting 111 to 117

    Result: 

    B 

    See step  78

    Result: 

    C 

    See step  85

    Result: 

    D 

    See step  96

    Result: 

    A 

    See step  73

  73. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Inspect the fuel injector assembly (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  74

  74. CHECK TERMINAL VOLTAGE (FUEL INJECTOR ASSEMBLY POWER SOURCE) 
    1. Disconnect the fuel injector assembly connectors.
      GTY722508Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      B7-2 - Body ground Ignition switch ON 11 to 14 V
      B8-2 - Body ground Ignition switch ON 11 to 14 V
      B9-2 - Body ground Ignition switch ON 11 to 14 V
      B10-2 - Body ground Ignition switch ON 11 to 14 V
      B11-2 - Body ground Ignition switch ON 11 to 14 V
      B12-2 - Body ground Ignition switch ON 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Fuel Injector Assembly)

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.
      • A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

    Result: 

    NG 

    CHECK ECM POWER SOURCE CIRCUIT 

    (Refer to ECM Power Source Circuit [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  75

  75. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) 
    1. Disconnect the B7, B8, B9, B10, B11 and B12 fuel injector assembly connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B7-1 - B1-86 (#10) Always Below 1 Ω
      B8-1 - B1-109 (#20) Always Below 1 Ω
      B9-1 - B1-85 (#30) Always Below 1 Ω
      B10-1 - B1-108 (#40) Always Below 1 Ω
      B11-1 - B1-84 (#50) Always Below 1 Ω
      B12-1 - B1-107 (#60) Always Below 1 Ω
      B7-1 or B1-86 (#10) - Body ground Always 10 kΩ or higher
      B8-1 or B1-109 (#20) - Body ground Always 10 kΩ or higher
      B9-1 or B1-85 (#30) - Body ground Always 10 kΩ or higher
      B10-1 or B1-108 (#40) - Body ground Always 10 kΩ or higher
      B11-1 or B1-84 (#50) - Body ground Always 10 kΩ or higher
      B12-1 - B1-107 (#60) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  76

  76. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    See step  77

  77. INSPECT VVT SENSOR 
    1. Replace the VVT sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (VVT SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  78. CHECK CRANKSHAFT POSITION SENSOR 
    1. Check the tightening and installation condition of the crankshaft position sensor bolt.
    2. Check the connection of the crankshaft position sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  79

  79. CHECK VVT SENSOR 
    1. Check the tightening and installation condition of the VVT sensor bolt.
    2. Check the connection of the VVT sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL VVT SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  80

  80. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B15-1 - B1-110 (NE+) Always Below 1 Ω
      B15-2 - B1-111 (NE-) Always Below 1 Ω
      B15-1 or B1-110 (NE+) - Body ground Always 10 kΩ or higher
      B15-2 or B1-111 (NE-) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  81

  81. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE SIDE) - ECM) 
    1. Disconnect the B16 and B17 VVT sensor (for intake side) connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B16-1 (VVR+) - B1-90 (VV1+) Always Below 1 Ω
      B16-2 (VVR-) - B1-89 (VV1-) Always Below 1 Ω
      B16-3 (VC) - B1-67 (VCV1) Always Below 1 Ω
      B17-1 (VVL+) - B1-87 (VV2+) Always Below 1 Ω
      B17-2 (VVL-) - B1-88 (VV2-) Always Below 1 Ω
      B17-3 (VC) - B1-66 (VCV2) Always Below 1 Ω
      B16-1 (VVR+) or B1-90 (VV1+) - Body ground Always 10 kΩ or higher
      B16-2 (VVR-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B16-3 (VC) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher
      B17-1 (VVL+) or B1-87 (VV2+) - Body ground Always 10 kΩ or higher
      B17-2 (VVL-) or B1-88 (VV2-) - Body ground Always 10 kΩ or higher
      B17-3 (VC) or B1-66 (VCV2) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  82

  82. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR EXHAUST SIDE) - ECM) 
    1. Disconnect the B36 and B37 VVT sensor (for exhaust side) connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B36-1 (EX+) - B1-69 (EV1+) Always Below 1 Ω
      B36-2 (EX-) - B1-89 (VV1-) Always Below 1 Ω
      B36-3 (VC2) - B1-67 (VCV1) Always Below 1 Ω
      B37-1 (EX+) - B1-64 (EV2+) Always Below 1 Ω
      B37-2 (EX-) - B1-89 (VV1-) Always Below 1 Ω
      B37-3 (VC2) - B1-67 (VCV1) Always Below 1 Ω
      B36-1 (EX+) or B1-69 (EV1+) - Body ground Always 10 kΩ or higher
      B36-2 (EX-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B36-3 (VC2) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher
      B37-1 (EX+) or B1-64 (EV2+) - Body ground Always 10 kΩ or higher
      B37-2 (EX-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B37-3 (VC2) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  83

  83. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    See step  84

  84. INSPECT VVT SENSOR 
    1. Replace the VVT sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (VVT SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  85. READ VALUE USING TECHSTREAM (ISC LEARNING VALUE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / ISC Learning Value.
    5. Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches turned off.
      RESULT

      Data List Item Result Suspected Area Proceed to
      ISC Learning Value (engine displacement (liters) x 0.9) or more
      • Valve timing
      • Compression
      		 A
      Less than (engine displacement (liters) x 0.9) - B

    Result: 

    B 

    See step  87

    Result: 

    A 

    See step  86

  86. CHECK CYLINDER COMPRESSION PRESSURE 
    1. Check the compression (Refer to PROCEDURE - Step 11 ).

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the engine assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    CHECK VALVE TIMING 

    (Refer to PROCEDURE - Step 4 )

    Result: 

    NG 

    REPAIR OR REPLACE ENGINE ASSEMBLY 

  87. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Inspect the engine coolant temperature sensor (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  88

  88. CHECK FUEL PRESSURE 

    HINT: 

    For the fuel pressure inspection, refer to the following procedures (Refer to PROCEDURE - Step 2 ).

    1. Attach a fuel pressure gauge and check the fuel pressure when cranking the engine and after stopping the engine.
      RESULT

      Vehicle State Specified Condition
      Cranking engine 304 to 343 kPa (3.1 to 3.5 kgf/cm2 )
      5 minutes after stopping engine 147 kPa (1.5 kgf/cm2 ) or more

    Result: 

    NG 

    See step  94

    Result: 

    OK 

    See step  89

  89. READ VALUE USING TECHSTREAM (LONG FT #1, FT #2) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Long FT #1 and Long FT #2.
      RESULT

      Data List Item Result Suspected Area Proceed to
      Long FT #1
      Long FT #2      		 -15 to +15%
      • Wire harness or connector
      • Fuel
      		 A
      +15% or more, or less than -15% Fuel injector assembly B

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    B 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    A 

    See step  90

  90. PERFORM SIMULATION TEST 
    1. Check if the idling speed after starting the engine is currently stable and has always been stable in the past.
      RESULT

      Problem Symptom Suspected Area Proceed to
      Current unstable idling speed or history of unstable idling speed Crankshaft position sensor system A
      All current and past idling speeds are stable Fuel B

      HINT: 

      Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.

    Result: 

    B 

    REPLACE FUEL 

    Result: 

    A 

    See step  91

  91. CHECK CRANKSHAFT POSITION SENSOR 
    1. Check the tightening and installation condition of the crankshaft position sensor bolt.
    2. Check the connection of the crankshaft position sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  92

  92. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B15-1 - B1-110 (NE+) Always Below 1 Ω
      B15-2 - B1-111 (NE-) Always Below 1 Ω
      B15-1 or B1-110 (NE+) - Body ground Always 10 kΩ or higher
      B15-2 or B1-111 (NE-) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  93

  93. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  94. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for fuel leakage from the fuel pipes.
      RESULT

      Result Proceed to
      No fuel leakage or signs of fuel leakage A
      Fuel leakage or signs of fuel leakage are present B

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
      • Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

    Result: 

    B 

    REPAIR OR REPLACE FUEL LINE 

    Result: 

    A 

    See step  95

  95. INSPECT FUEL PUMP 
    1. Inspect the fuel pump (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      • Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.
      • Make sure the internal connector is securely connected.
      • Make sure the fuel pump filter is not clogged.
      • Perform "Inspection After Repair" after replacing the fuel pump (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    REPLACE FUEL PRESSURE REGULATOR 

    Result: 

    NG 

    REPLACE FUEL PUMP 

  96. CHECK FUEL PRESSURE 

    HINT: 

    For the fuel pressure inspection, refer to the following procedures (Refer to PROCEDURE - Step 2 ).

    1. Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.
      RESULT

      Result Proceed to
      147 kPa (1.5 kgf/cm2 ) or higher (5 minutes after stopping the engine) A
      Less than 147 kPa (1.5 kgf/cm2 ) (5 minutes after stopping the engine) B

    Result: 

    B 

    See step  102

    Result: 

    A 

    See step  97

  97. READ VALUE USING TECHSTREAM (LONG FT #1, FT #2) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Long FT #1 and Long FT #2.
      RESULT

      Data List Item Result Suspected Area Proceed to
      Long FT #1
      Long FT #2      		 -15 to +15%
      • Wire harness or connector
      • Fuel
      		 A
      +15% or more, or less than -15% Fuel injector assembly B

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    B 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    A 

    See step  98

  98. PERFORM SIMULATION TEST 
    1. Check if the idling speed after starting the engine is currently stable and has always been stable in the past.
      RESULT

      Problem Symptom Suspected Area Proceed to
      Current unstable idling speed or history of unstable idling speed Crankshaft position sensor system A
      All current and past idling speeds are stable Fuel B

      HINT: 

      Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.

    Result: 

    B 

    REPLACE FUEL 

    Result: 

    A 

    See step  99

  99. CHECK CRANKSHAFT POSITION SENSOR 
    1. Check the tightening and installation condition of the crankshaft position sensor bolt.
    2. Check the connection of the crankshaft position sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  100

  100. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B15-1 - B1-110 (NE+) Always Below 1 Ω
      B15-2 - B1-111 (NE-) Always Below 1 Ω
      B15-1 or B1-110 (NE+) - Body ground Always 10 kΩ or higher
      B15-2 or B1-111 (NE-) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  101

  101. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

  102. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.
    5. When performing the Active Test, check for fuel leakage from the fuel pipes.
      RESULT

      Result Proceed to
      Fuel leakage or signs of fuel leakage are present A
      No fuel leakage or signs of fuel leakage B

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
      • Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

    Result: 

    A 

    REPAIR OR REPLACE FUEL LINE 

    Result: 

    B 

    See step  103

  103. INSPECT FUEL PUMP 
    1. Inspect the fuel pump (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      • Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.
      • Make sure the internal connector is securely connected.
      • Make sure the fuel pump filter is not clogged.
      • Perform "Inspection After Repair" after replacing the fuel pump (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE FUEL PUMP 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  104

  104. INSPECT PURGE VSV 
    1. Disconnect the purge hose (on the canister side) of the purge VSV.
      GTY733141Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Purge hose (to Canister)
      *2 Connector
      *3 Purge VSV
    2. Start the engine.
    3. Idle the engine.
    4. Disconnect the B22 connector of the purge VSV.
    5. Check if air flows through the purge VSV.

      OK

      Air does not flow.

      HINT: 

      When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs (Refer to DTC CHECK / CLEAR [12/2015 - 08/2016] ).

    Result: 

    NG 

    INSPECT PURGE VSV 

    (Refer to INSPECTION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  105

  105. CHECK FUEL INJECTOR ASSEMBLY 
    1. Clean the inside of the surge tank with compressed air.
    2. After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.
      RESULT

      Result Proceed to
      4000 ppm or higher A
      Less than 4000 ppm B

      HINT: 

      • If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.
      • Perform "Inspection After Repair" after replacing the fuel injector assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    A 

    REPLACE FUEL INJECTOR ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    B 

    See step  106

  106. CHECK INTAKE VALVE 
    1. Check if carbon is on the intake valves.
      RESULT

      Result Proceed to
      Carbon present A
      No carbon present B

    Result: 

    A 

    CLEAN INTAKE VALVE 

    Result: 

    B 

    See step  107

  107. READ VALUE USING TECHSTREAM (ISC LEARNING VALUE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / ISC Learning Value.
    5. Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes.
      RESULT

      Data List Item Result Suspected Area Proceed to
      ISC Learning Value (engine displacement (liters) x 0.9) or more
      • Valve timing
      • Compression
      		 A
      Less than (engine displacement (liters) x 0.9) - B

    Result: 

    B 

    See step  109

    Result: 

    A 

    See step  108

  108. CHECK CYLINDER COMPRESSION PRESSURE 
    1. Check the compression (Refer to PROCEDURE - Step 11 ).

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the engine assembly (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    OK 

    CHECK VALVE TIMING 

    (Refer to PROCEDURE - Step 4 )

    Result: 

    NG 

    REPAIR OR REPLACE ENGINE ASSEMBLY 

  109. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Inspect the engine coolant temperature sensor (Refer to INSPECTION [12/2015 - 08/2016] ).

      HINT: 

      Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Refer to INITIALIZATION [12/2015 - 08/2016] ).

    Result: 

    NG 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  110

  110. CHECK CRANKSHAFT POSITION SENSOR 
    1. Check the tightening and installation condition of the crankshaft position sensor bolt.
    2. Check the connection of the crankshaft position sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL CRANKSHAFT POSITION SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  111

  111. CHECK VVT SENSOR 
    1. Check the tightening and installation condition of the VVT sensor bolt.
    2. Check the connection of the VVT sensor connector.

      OK

      Sensor is installed correctly.

    Result: 

    NG 

    SECURELY REINSTALL VVT SENSOR 

    (Refer to INSTALLATION [12/2015 - 08/2016] )

    Result: 

    OK 

    See step  112

  112. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) 
    1. Disconnect the B15 crankshaft position sensor connector.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B15-1 - B1-110 (NE+) Always Below 1 Ω
      B15-2 - B1-111 (NE-) Always Below 1 Ω
      B15-1 or B1-110 (NE+) - Body ground Always 10 kΩ or higher
      B15-2 or B1-111 (NE-) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  113

  113. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE SIDE) - ECM) 
    1. Disconnect the B16 and B17 VVT sensor (for intake side) connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B16-1 (VVR+) - B1-90 (VV1+) Always Below 1 Ω
      B16-2 (VVR-) - B1-89 (VV1-) Always Below 1 Ω
      B16-3 (VC) - B1-67 (VCV1) Always Below 1 Ω
      B17-1 (VVL+) - B1-87 (VV2+) Always Below 1 Ω
      B17-2 (VVL-) - B1-88 (VV2-) Always Below 1 Ω
      B17-3 (VC) - B1-66 (VCV2) Always Below 1 Ω
      B16-1 (VVR+) or B1-90 (VV1+) - Body ground Always 10 kΩ or higher
      B16-2 (VVR-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B16-3 (VC) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher
      B17-1 (VVL+) or B1-87 (VV2+) - Body ground Always 10 kΩ or higher
      B17-2 (VVL-) or B1-88 (VV2-) - Body ground Always 10 kΩ or higher
      B17-3 (VC) or B1-66 (VCV2) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  114

  114. CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR EXHAUST SIDE) - ECM) 
    1. Disconnect the B36 and B37 VVT sensor (for exhaust side) connectors.
    2. Disconnect the B1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B36-1 (EX+) - B1-69 (EV1+) Always Below 1 Ω
      B36-2 (EX-) - B1-89 (VV1-) Always Below 1 Ω
      B36-3 (VC2) - B1-67 (VCV1) Always Below 1 Ω
      B37-1 (EX+) - B1-64 (EV2+) Always Below 1 Ω
      B37-2 (EX-) - B1-89 (VV1-) Always Below 1 Ω
      B37-3 (VC2) - B1-67 (VCV1) Always Below 1 Ω
      B36-1 (EX+) or B1-69 (EV1+) - Body ground Always 10 kΩ or higher
      B36-2 (EX-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B36-3 (VC2) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher
      B37-1 (EX+) or B1-64 (EV2+) - Body ground Always 10 kΩ or higher
      B37-2 (EX-) or B1-89 (VV1-) - Body ground Always 10 kΩ or higher
      B37-3 (VC2) or B1-67 (VCV1) - Body ground Always 10 kΩ or higher

      HINT: 

      • Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
      • Make sure there is not an excessive amount of force applied to the wire harness.

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  115

  115. INSPECT CRANKSHAFT POSITION SENSOR 
    1. Replace the crankshaft position sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    See step  116

  116. INSPECT VVT SENSOR 
    1. Replace the VVT sensor (Refer to REMOVAL [12/2015 - 08/2016] ).
    2. Check the engine start operation.

      OK

      Malfunction has been repaired successfully.

    Result: 

    OK 

    END (VVT SENSOR IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE ECM 

    (Refer to REMOVAL [12/2015 - 08/2016] )

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