Inspection Procedure

HINT.

• When viewed from the rear of the engine assembly, Bank 1 is on the left side and Bank 2 is on the right side.
• Read freeze frame data using the intelligent tester or Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred

1. PERFORM SIMULATION TEST 
   1. Clear the DTC(s) (see DTC CHECK/CLEAR ).
   2. Put the engine in inspection mode (see INSPECTION MODE PROCEDURE ).
   3. Change the arrangement of the ignition coils (with igniters).
      NOTE: Do not change the location of the connectors.
   4. Perform a simulation test.

      Result 

      RESULT REFERENCE
      
      

      Display (DTC Output)	Proceed to
      Same DTCs (that have been erased)	A
      Other DTCs	B

   B: REPLACE IGNITION COIL ASSEMBLY  (See REMOVAL )

   A: Go to next step 

2. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) 
   1. Disconnect the E38, E30, E41, E33, E42, E34, E45 or E36 ignition coil connector.
   Fig 1: Identifying Ignition Coil Connector Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Turn the power switch ON (IG)
   3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE
      
      

      Tester Connection	Switch Condition	Specified Condition
      E38-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E30-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E41-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E33-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E42-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E34-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E45-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V
      E36-1 (+B) - Body ground	Power switch ON (IG)	11 to 14 V

   4. Measure the resistance according to the value(s) in the table below:

      Standard resistance 

      STANDARD RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      E38-4 (GND) - Body ground	Always	Below 1 Ω
      E30-4 (GND) - Body ground	Always	Below 1 Ω
      E41-4 (GND) - Body ground	Always	Below 1 Ω
      E33-4 (GND) - Body ground	Always	Below 1 Ω
      E42-4 (GND) - Body ground	Always	Below 1 Ω
      E34-4 (GND) - Body ground	Always	Below 1 Ω
      E45-4 (GND) - Body ground	Always	Below 1 Ω
      E36-4 (GND) - Body ground	Always	Below 1 Ω

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

3. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
   1. Disconnect the E38, E30, E41, E33, E42, E34, E45 or E36 ignition coil connector.
   Fig 2: Identifying Ignition Coil And ECM Connector Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Disconnect the E2 and E4 ECM connectors.
   3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      E38-3 (IGT1) - E4-27 (IGT1)	Always	Below 1 Ω
      E30-3 (IGT2) - E2-23 (IGT2)	Always	Below 1 Ω
      E41-3 (IGT3) - E4-26 (IGT3)	Always	Below 1 Ω
      E33-3 (IGT4) - E2-22 (IGT4)	Always	Below 1 Ω
      E42-3 (IGT5) - E4-25 (IGT5)	Always	Below 1 Ω
      E34-3 (IGT6) - E2-21 (IGT6)	Always	Below 1 Ω
      E45-3 (IGT7) - E4-24 (IGT7)	Always	Below 1 Ω
      E36-3 (IGT8) - E2-20 (IGT8)	Always	Below 1 Ω

      Standard resistance (Check for short) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      E38-3 (IGT1) or E4-27 (IGT1) - Body ground	Always	10 kΩ or higher
      E30-3 (IGT2) or E2-23 (IGT2) - Body ground	Always	10 kΩ or higher
      E41-3 (IGT3) or E4-26 (IGT3) - Body ground	Always	10 kΩ or higher
      E33-3 (IGT4) or E2-22 (IGT4) - Body ground	Always	10 kΩ or higher
      E42-3 (IGT5) or E4-25 (IGT5) - Body ground	Always	10 kΩ or higher
      E34-3 (IGT6) or E2-21 (IGT6) - Body ground	Always	10 kΩ or higher
      E45-3 (IGT7) or E4-24 (IGT7) - Body ground	Always	10 kΩ or higher
      E36-3 (IGT8) or E2-20 (IGT8) - Body ground	Always	10 kΩ or higher

      Standard resistance (Check for open) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      E38-2 (IGF1) - E4-32 (IGF1)	Always	Below 1 Ω
      E30-2 (IGF2) - E2-28 (IGF2)	Always	Below 1 Ω
      E41-2 (IGF2) - E2-28 (IGF2)	Always	Below 1 Ω
      E33-2 (IGF1) - E4-32 (IGF1)	Always	Below 1 Ω
      E42-2 (IGF2) - E2-28 (IGF2)	Always	Below 1 Ω
      E34-2 (IGF1) - E4-32 (IGF1)	Always	Below 1 Ω
      E45-2 (IGF1) - E4-32 (IGF1)	Always	Below 1 Ω
      E36-2 (IGF2) - E2-28 (IGF2)	Always	Below 1 Ω

      Standard resistance (Check for short) 

      STANDARD RESISTANCE
      
      

      Tester Connection	Condition	Specified Condition
      E38-2 (IGF1) or E4-32 (IGF1) - Body ground	Always	10 kΩ or higher
      E30-2 (IGF2) or E2-28 (IGF2) - Body ground	Always	10 kΩ or higher
      E41-2 (IGF2) or E2-28 (IGF2) - Body ground	Always	10 kΩ or higher
      E33-2 (IGF1) or E4-32 (IGF1) - Body ground	Always	10 kΩ or higher
      E42-2 (IGF2) or E2-28 (IGF2) - Body ground	Always	10 kΩ or higher
      E34-2 (IGF1) or E4-32 (IGF1) - Body ground	Always	10 kΩ or higher
      E45-2 (IGF1) or E4-32 (IGF1) - Body ground	Always	10 kΩ or higher
      E36-2 (IGF2) or E2-28 (IGF2) - Body ground	Always	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

4. CHECK IF DTC OUTPUT RECURS 
   1. Clear the DTC (see DTC CHECK/CLEAR ).
   2. Connect the intelligent tester or Techstream to the DLC3
   3. Put the engine in inspection mode (see INSPECTION MODE PROCEDURE )
   4. Turn the tester ON.
   5. Enter the following menus.
      1. Intelligent tester - Select" DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
      2. Techstream - Select: Powertrain / Engine and ECT / Trouble Codes.
   6. Read DTCs

      Result 

      RESULT REFERENCE
      
      

      Display (DTC Output)	Proceed to
      P0351, P0352, P0353, P0354, P0355, P0356, P0357 and/or P0358 are output	A
      No output	B

   B: SYSTEM OK 

   A: REPLACE ECM  (See REMOVAL )