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Home >> Toyota >> 2019 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 110 (SFI System (2GR-FXS) - Diagnostic Codes - (Hybrid) (4 Of 4)) >> SFI System >> DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected [11/2016 - ] >> Procedure

DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected [11/2016 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE DTCS) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    5. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes 

      Result

      Result Proceed to
      DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 are output A
      DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 and other DTCs are output B

      HINT: 

      If any DTCs other than P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 are output, troubleshoot those DTCs first.

    Result: 

    B 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2016 - 10/2017]  or  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - ] 

    Result: 

    A 

    See step  2

  2. CHECK PCV HOSE CONNECTIONS 
    1. Check the PCV hose connections.

      Refer to COMPONENTS [11/2016 - ]

      OK

      PCV valve and hose are correctly connected and are not damaged.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE PCV HOSE 

    Result: 

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM (MISFIRE RPM AND MISFIRE LOAD) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Misfire RPM and Misfire Load.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Misfire RPM
      Misfire Load
    5. Read and note the Misfire RPM and Misfire Load values.

      HINT: 

      The Misfire RPM and Misfire Load values indicate the vehicle conditions under which the misfire occurred.

    NEXT 

    See step  4

  4. CHECK MISFIRE COUNT OF PORT INJECTION 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine and warm it up.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Data List / Injection Way and Cylinder #1 Misfire Count to Cylinder #6 Misfire Count.

      Powertrain > Engine and ECT > Active Test 

      Active Test Display
      Control the Injection Way
      Data List Display
      Injection Way
      Cylinder #1 Misfire Count
      Cylinder #2 Misfire Count
      Cylinder #3 Misfire Count
      Cylinder #4 Misfire Count
      Cylinder #5 Misfire Count
      Cylinder #6 Misfire Count
    7. Allow the engine to idle.
    8. According to the display on the Techstream, read the Data List with the Active Test "Control the Injection Way" set to Port. If the value of Misfire Count is not more than 0 for any cylinder, perform the following procedure and the check the Data List again.
      1. Drive the vehicle with the Misfire RPM and Misfire Load noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedure above.
      2. According to the display on the Techstream, read the Data List (Injection Mode, Cylinder #1 Misfire Count to Cylinder #6 Misfire Count) and check for DTCs.

      Result

      Injection Way Misfire Count Proceed to
      Port 1 or 2 cylinders have misfire counts A
      3 cylinders or more have misfire counts
      There are no misfire counts B

    Result: 

    B 

    See step  8

    Result: 

    A 

    See step  5

  5. CHECK MISFIRE COUNT OF DIRECT INJECTION 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine and warm it up.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Data List / Injection Way and Cylinder #1 Misfire Count to Cylinder #6 Misfire Count.

      Powertrain > Engine and ECT > Active Test 

      Active Test Display
      Control the Injection Way
      Data List Display
      Injection Way
      Cylinder #1 Misfire Count
      Cylinder #2 Misfire Count
      Cylinder #3 Misfire Count
      Cylinder #4 Misfire Count
      Cylinder #5 Misfire Count
      Cylinder #6 Misfire Count
    7. Allow the engine to idle.
    8. According to the display on the Techstream, read the Data List with the Active Test "Control the Injection Way" set to Direct. If the value of Misfire Count is not more than 0 for any cylinder, perform the following procedure and the check the Data List again.
      1. Drive the vehicle with the Misfire RPM and Misfire Load noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedure above.
      2. According to the display on the Techstream, read the Data List (Injection Mode, Cylinder #1 Misfire Count to Cylinder #6 Misfire Count) and check for DTCs.

      Result

      Misfire Count Proceed to
      Port (Result of step 4) Direct
      1 or 2 cylinders have misfire counts 1 or 2 cylinders have misfire counts A
      3 cylinders or more have misfire counts 3 cylinders or more have misfire counts B
      1 or 2 cylinders have misfire counts There are no misfire counts C
      3 cylinders or more have misfire counts There are no misfire counts D

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection).

      Refer to INITIALIZATION [11/2016 - ]

    Result: 

    A 

    See step  10

    Result: 

    B 

    See step  13

    Result: 

    C 

    REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION). Refer to  REMOVAL [11/2016 - ] 

    Result: 

    D 

    See step  6

  6. CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE) 
    1. Check the fuel pressure (for low pressure side).

      Refer to PROCEDURE - STEP 2

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection).

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION (MISFIRING CYLINDER)). Refer to  REMOVAL [11/2016 - ] 

    Result: 

    NG 

    See step  7

  7. CHECK FUEL LINE (FOR LOW PRESSURE SIDE) 
    1. Check the fuel lines (for low pressure side) for leaks or blockage.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    GO TO FUEL PUMP CONTROL CIRCUIT. Refer to  FUEL PUMP CONTROL CIRCUIT [11/2016 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE FUEL LINE (FOR LOW PRESSURE SIDE) 

  8. CHECK MISFIRE COUNT OF DIRECT INJECTION 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine and warm it up.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Data List / Injection Way and Cylinder #1 Misfire Count to Cylinder #6 Misfire Count.

      Powertrain > Engine and ECT > Active Test 

      Active Test Display
      Control the Injection Way
      Data List Display
      Injection Way
      Cylinder #1 Misfire Count
      Cylinder #2 Misfire Count
      Cylinder #3 Misfire Count
      Cylinder #4 Misfire Count
      Cylinder #5 Misfire Count
      Cylinder #6 Misfire Count
    7. Allow the engine to idle.
    8. According to the display on the Techstream, read the Data List with the Active Test "Control the Injection Way" set to Direct. If the value of Misfire Count is not more than 0 for any cylinder, perform the following procedure and the check the Data List again.
      1. Drive the vehicle with the Misfire RPM and Misfire Load noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedure above.
      2. According to the display on the Techstream, read the Data List (Injection Mode, Cylinder #1 Misfire Count to Cylinder #6 Misfire Count) and check for DTCs.

      Result

      Misfire Count Proceed to
      Port (Result of step 4) Direct
      There are no misfire counts There are misfire counts A
      There are no misfire counts There are no misfire counts B

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).

      Refer to INITIALIZATION [11/2016 - ]

    Result: 

    A 

    REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION (MISFIRING CYLINDER)). Refer to  REMOVAL [11/2016 - ] 

    Result: 

    B 

    See step  9

  9. CHECK MISFIRE COUNT 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the power switch off and wait for at least 30 seconds.
    6. Turn the power switch on (IG).
    7. Turn the Techstream on.
    8. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    9. Start the engine and warm it up.
    10. Enter the following menus: Powertrain / Engine and ECT / Data List / Injection Way, Cylinder #1 to #6 Misfire Count, Misfire RPM and Misfire Load.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Injection Way
      Cylinder #1 Misfire Count
      Cylinder #2 Misfire Count
      Cylinder #3 Misfire Count
      Cylinder #4 Misfire Count
      Cylinder #5 Misfire Count
      Cylinder #6 Misfire Count
      Misfire RPM
      Misfire Load
    11. Drive the vehicle with Misfire RPM and Misfire Load.
    12. Monitor all of the misfire count values or DTCs displayed on the Techstream.

      Result

      Misfire Count Injection Way Proceed to
      There are no misfire counts - A
      1 or 2 cylinders have misfire counts Port or Either B
      3 cylinders or more have misfire counts Port or Either C
      There are misfire counts Direct D

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).

      Refer to INITIALIZATION [11/2016 - ]

    Result: 

    A 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [11/2016 - ] 

    Result: 

    C 

    See step  13

    Result: 

    D 

    REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION). Refer to  REMOVAL [11/2016 - ] 

    Result: 

    B 

    See step  10

  10. INSPECT SPARK PLUG 
    1. Inspect the spark plug of the misfiring cylinder.

      Refer to PROCEDURE - STEP 3

      HINT: 

      Perform "Inspection After Repair" after replacing the spark plug.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SPARK PLUG. Refer to  REMOVAL [11/2016 - ] 

    Result: 

    OK 

    See step  11

  11. CHECK FOR SPARK (SPARK TEST) 
    1. Perform a spark test.

      Refer to PROCEDURE - STEP 1

      HINT: 

      • If the result of the spark test is normal, proceed to the next step.
      • Perform "Inspection After Repair" after replacing the spark plug or ignition coil assembly.

        Refer to INITIALIZATION [11/2016 - ]

    NEXT 

    See step  12

  12. CHECK CYLINDER COMPRESSION PRESSURE 
    1. Measure the cylinder compression pressure of the misfiring cylinder.

      Refer to PROCEDURE - Step 10

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the engine assembly.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [11/2016 - ] 

    Result: 

    NG 

    CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION 

  13. CHECK INTAKE SYSTEM 
    1. Check the intake system for vacuum leaks.

      Refer to ON-VEHICLE INSPECTION [11/2016 - ]

      OK

      No leaks from intake system.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the intake system.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE INTAKE SYSTEM 

    Result: 

    OK 

    See step  14

  14. READ VALUE USING TECHSTREAM (COOLANT TEMP) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant Temp.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Coolant Temp
    5. Read the Data List twice, when the engine is both cold and warmed up.

      Standard

      Techstream Display Condition Specified Condition
      Coolant Temp Cold engine Same as ambient air temperature
      Warm engine Between 75 and 100°C (167 and 212°F)

      HINT: 

      Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to  REMOVAL [11/2016 - ] 

    Result: 

    OK 

    See step  15

  15. READ VALUE USING TECHSTREAM (INTAKE AIR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Intake Air
    5. According to the display on the Techstream, read the Data List.

      OK

      Same as actual intake air temperature.

      HINT: 

      Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to  REMOVAL [11/2016 - ] 

    Result: 

    OK 

    See step  16

  16. READ VALUE USING TECHSTREAM (MAF) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine.
    6. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed, MAF and Coolant Temp.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Engine Speed
      MAF
      Coolant Temp
    7. Allow the engine to idle until Coolant Temp reaches 75°C (167°F) or higher.
    8. Read MAF with the engine speed at 2500 rpm.

      HINT: 

      During charge control, the engine speed is set at idle. Therefore, the engine speed does not increase when depressing the accelerator pedal. In this case, read the Data List item after charge control has completed.

      Standard

      Techstream Display Condition Specified Condition
      MAF Engine warmed up
      Shift lever position: P
      A/C: Off
      Engine Speed: 2500 rpm      		 Between 8.5 and 12.5 gm/sec

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  22

    Result: 

    OK 

    See step  17

  17. CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH) 
    1. Remove the cylinder head cover sub-assemblies RH and LH.

      Refer to PROCEDURE - Step 26

    2. Turn the crankshaft pulley and align its groove with the TDC timing mark of the timing chain cover.
    3. Check that the timing marks of the camshaft timing gear assemblies and camshaft timing exhaust gear assemblies are aligned with the timing marks of the bearing caps as shown in the illustration.
      GTY650100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Timing Mark *b TDC Timing Mark

      HINT: 

      If the timing marks are not as shown, turn the crankshaft one revolution clockwise.

      OK

      Timing marks on camshaft timing gear assemblies and camshaft timing exhaust gear assemblies are aligned as shown in the illustration.

      HINT: 

      If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  20

    Result: 

    OK 

    See step  18

  18. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    5. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

      HINT: 

      The A/C switch and all accessory switches should be off.

    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / MAP and Throttle Idle Position.

      Powertrain > Engine and ECT > Active Test 

      Active Test Display
      Control the EGR Step Position
      Data List Display
      MAP
      Throttle Idle Position
    7. Confirm that the Throttle Idle Position is ON and check the MAP values in the Data List while performing the Active Test.

      HINT: 

      • Do not leave the EGR valve open for 10 seconds or more during the Active Test.
      • Be sure to return the EGR valve to step 0 when the Active Test is completed.
      • Do not open the EGR valve 30 steps or more during the Active Test.

      OK

      MAP change in response to EGR step position when Throttle Idle Position is ON in Data List.

      Standard

      - EGR Step Position (Active Test)
      0 Steps 0 to 30 Steps
      MAP
      (Data List)      		 (EGR valve is fully closed) MAP value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed

      HINT: 

      • While performing the Active Test, if the increase in the value of MAP is small, the EGR valve assembly may be a malfunctioning.
      • Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of MAP may occur while performing the Active Test. However, the amount that the value of MAP increases will be smaller than normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  22

    Result: 

    NG 

    See step  19

  19. INSPECT EGR VALVE ASSEMBLY 
    1. Remove the EGR valve assembly.

      Refer to REMOVAL [11/2016 - ]

    2. Check if the EGR valve is stuck open.

      OK

      EGR valve is tightly closed.

      HINT: 

      Perform "Inspection After Repair" after replacing the EGR valve assembly.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  22

    Result: 

    NG 

    REPLACE EGR VALVE ASSEMBLY. Refer to  REMOVAL [11/2016 - ] 

  20. CHECK ENGINE MECHANICAL SYSTEM 
    1. Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the engine mechanical system.

      Refer to INITIALIZATION [11/2016 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

    Result: 

    OK 

    See step  21

  21. CHECK WHETHER DTC OUTPUT RECURS (MISFIRE DTCS) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the power switch off and wait for at least 30 seconds.
    6. Turn the power switch on (IG).
    7. Turn the Techstream on.
    8. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    9. Start the engine and warm it up.
    10. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      All Readiness
    12. Input the DTC: P0300, P0301, P0302, P0303, P0304, P0305 or P0306.
    13. Check the DTC judgment result.

      Result

      Result Proceed to
      ABNORMAL
      (DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 is output)      		 A
      NORMAL
      (DTCs are not output)      		 B

    Result: 

    A 

    See step  22

    Result: 

    B 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [11/2016 - ] 

  22. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY CONNECTOR CONNECTION) 
    1. Check the connection and terminal contact pressure of connectors and wire harnesses between the mass air flow meter sub-assembly and ECM.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [02/2014 - ]

      HINT: 

      Repair any problems.

    NEXT 

    See step  23

  23. CHECK WHETHER DTC OUTPUT RECURS (MISFIRE DTCS) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the power switch off and wait for at least 30 seconds.
    6. Turn the power switch on (IG).
    7. Turn the Techstream on.
    8. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    9. Start the engine and warm it up.
    10. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      All Readiness
    12. Input the DTC: P0300, P0301, P0302, P0303, P0304, P0305 or P0306.
    13. Check the DTC judgment result.

      Result

      Result Proceed to
      ABNORMAL
      (DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 is output)      		 A
      NORMAL
      (DTCs are not output)      		 B

    Result: 

    B 

    END 

    Result: 

    A 

    See step  24

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      C60-3 (5V) - C1-99 (VCVG) Always Below 1 Ω
      C60-1 (FG) - C1-128 (VG) Always Below 1 Ω
      C60-2 (E2G) - C1-96 (E2G) Always Below 1 Ω
      C60-3 (5V) or C1-99 (VCVG) - Body ground and other terminals Always 10 kΩ or higher
      C60-1 (FG) or C1-128 (VG) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  25

  25. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY 
    1. Replace the mass air flow meter sub-assembly.

      Refer to REMOVAL [11/2016 - ]

      HINT: 

      • If the results of the inspections performed in step 16 indicated no problem, proceed to the next step without replacing the mass air flow meter sub-assembly.
      • Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

        Refer to INITIALIZATION [11/2016 - ]

    NEXT 

    See step  26

  26. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs 

    5. Turn the power switch off and wait for at least 30 seconds.
    6. Turn the power switch on (IG).
    7. Turn the Techstream on.
    8. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    9. Start the engine and warm it up.
    10. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      All Readiness
    12. Input the DTC: P0300, P0301, P0302, P0303, P0304, P0305 or P0306.
    13. Check the DTC judgment result.

      Result

      Result Proceed to
      NORMAL
      (DTCs are not output)      		 A
      ABNORMAL
      (DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 is output)      		 B

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE ECM. Refer to  REMOVAL [11/2016 - ] 

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