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Home >> Toyota >> 2006 >> Matrix XRS >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2ZZ-GE) >> SFI System >> DTC P0351 Ignition Coil "A" Primary / Secondary Circuit: DTC P0352 Ignition Coil "B" Primary / Secondary Circuit: DTC P0353 Ignition Coil "C" Primary / Secondary Circuit: DTC P0354 Ignition Coil "D" Primary / Secondary Circuit >> Inspection Procedure

Inspection Procedure

HINT:

Read freeze frame data using an intelligent tester or OBD II scan tool. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air / fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

  1. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) 
    1. Connect an intelligent tester or OBD II scan tool to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the tester or scan tool ON.
    4. Clear DTCs (See DTC CHECK / CLEAR  ).
    5. Shuffle arrangement of the ignition coils with igniters (among No. 1 to No. 4 cylinders).
      NOTE: Do not shuffle the connectors.
    6. Perform a simulation test.
    7. Check DTCs displayed on the tester or scan tool.

      Result 

      DTC OUTPUT RESULT

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

    B: GO TO  DTC CHART  

    A: Go to Next Step 

  2. INSPECT ECM (IGT1, IGT2, IGT3, IGT4 AND IGF SIGNAL) 
    1. Inspect using an oscilloscope.
    2. While cranking or idling, check the waveform between the terminals of the E3 ECM connector.

      Standard 

      WAVEFORM REFERENCE

      Tester Connections Specified Conditions
      IGT1 (E3-8) - E1 (E3-5) Correct waveform is as shown
      IGT2 (E3-9) - E1 (E3-5) Correct waveform is as shown
      IGT3 (E3-10) - E1 (E3-5) Correct waveform is as shown
      IGT4 (E3-11) - E1 (E3-5) Correct waveform is as shown
      IGF (E3-24) - E1 (E3-5) Correct waveform is as shown

    NG: REPLACE ECM 

    Fig 1: Identifying Waveform Between Terminals Of E3 ECM Connector
    G04460741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO NEXT STEP 

  3. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the I2, I3, I4 or I5 ignition coil with igniter connector.
    2. Disconnect the E3 ECM connector.
    3. Measure the resistance.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFIED CONDITIONS (FOR OPEN) (1 OF 2)

      Tester Connections Specified Conditions
      IGF (I2-2) - IGF (E3-24) Below 1
      IGF (I3-2) - IGF (E3-24) Below 1
      IGF (I4-2) - IGF (E3-24) Below 1
      IGF (I5-2) - IGF (E3-24) Below 1

      Standard resistance (Check for open) 

      RESISTANCE SPECIFIED CONDITIONS (FOR OPEN) (2 OF 2)

      Tester Connections Specified Conditions
      IGT (I2-3) - IGT1 (E3-8) Below 1
      IGT (I3-3) - IGT2 (E3-9) Below 1
      IGT (I4-3) - IGT3 (E3-10) Below 1
      IGT (I5-3) - IGT4 (E3-11) Below 1
      Fig 2: Disconnecting E3 ECM Connector
      G04460742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance (Check for short) 

      RESISTANCE SPECIFIED CONDITIONS (FOR SHORT) (1 OF 2)

      Tester Connections Specified Conditions
      IGF (I2-2) or IGF (E3-24) - Body ground 10 k or higher
      IGF (I3-2) or IGF (E3-24) - Body ground 10 k or higher
      IGF (I4-2) or IGF (E3-24) - Body ground 10 k or higher
      IGF (I5-2) or IGF (E3-24) - Body ground 10 k or higher

      Standard resistance (Check for short) 

      RESISTANCE SPECIFIED CONDITIONS (FOR SHORT) (2 OF 2)

      Tester Connections Specified Conditions
      IGT (I2-3) or IGT1 (E3-8) - Body ground 10 k or higher
      IGT (I3-3) or IGT2 (E3-9) - Body ground 10 k or higher
      IGT (I4-3) or IGT3 (E3-10) - Body ground 10 k or higher
      IGT (I5-3) or IGT4 (E3-11) - Body ground 10 k or higher
    4. Reconnect the ECM connector.
    5. Reconnect the ignition coil with igniter connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  4. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) 
    1. Disconnect the I2, I3, I4 or I5 ignition coil with igniter connector.
    2. Measure the resistance.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFIED CONDITIONS (FOR OPEN)

      Tester Connections Specified Conditions
      GND (I2-4) - Body ground Below 1
      GND (I3-4) - Body ground Below 1
      GND (I4-4) - Body ground Below 1
      GND (I5-4) - Body ground Below 1
      Fig 3: Identifying Ignition Coil With Igniter Connector Terminals
      G04460743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the ignition switch to ON.
    4. Measure the voltage between the terminals of the wire harness side connector.

      Standard voltage 

      VOLTAGE SPECIFIED CONDITIONS

      Tester Connections Specified Conditions
      +B (I2-1) - GND (I2-4) Between 9 V and 14 V
      +B (I3-1) - GND (I3-4) Between 9 V and 14 V
      +B (I4-1) - GND (I4-4) Between 9 V and 14 V
      +B (I5-1) - GND (I5-4) Between 9 V and 14 V
    5. Reconnect the ignition coil with igniter connector.

    OK: REPLACE IGNITION COIL ASSEMBLY 

    NG: GO TO NEXT STEP 

  5. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the I2, I3, I4 or I5 ignition coil with igniter connector.
    2. Disconnect the E5 ECM connector.
    3. Measure the resistance.

      Standard resistance (Check for open) 

      RESISTANCE SPECIFIED CONDITIONS (FOR OPEN)

      Tester Connections Specified Conditions
      +B (I2-1) - MREL (E5-4) Below 1
      +B (I3-1) - MREL (E5-4) Below 1
      +B (I4-1) - MREL (E5-4) Below 1
      +B (I5-1) - MREL (E5-4) Below 1

      Standard resistance (Check for short) 

      RESISTANCE SPECIFIED CONDITIONS (FOR SHORT)

      Tester Connections Specified Conditions
      +B (I2-1) or MREL (E5-4) - Body ground 10 k or higher
      +B (I3-1) or MREL (E5-4) - Body ground 10 k or higher
      +B (I4-1) or MREL (E5-4) - Body ground 10 k or higher
      +B (I5-1) or MREL (E5-4) - Body ground 10 k or higher
    4. Reconnect the ignition coil with igniter connector.
    5. Reconnect the ignition switch connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 4: Disconnecting E5 ECM Connector
    G04460744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE IGNITION COIL ASSEMBLY 

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