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Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2ZR-FE) >> 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 the Techstream. 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 HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND) 
    1. Disconnect the ignition coil assembly connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-4 (GND) - Body ground Always Below 1 Ω
      B22-4 (GND) - Body ground Always Below 1 Ω
      B23-4 (GND) - Body ground Always Below 1 Ω
      B24-4 (GND) - Body ground Always Below 1 Ω
    3. Reconnect the ignition coil assembly connectors. NG

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY BODY GROUND) 

      Fig 1: Identifying Ignition Coil Assembly Connectors
      G06040078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  2. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) 
    1. Disconnect the ignition coil assembly connectors.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-1 (+B) - B21-4 (GND) Ignition switch ON 11 to 14 V
      B22-1 (+B) - B22-4 (GND) Ignition switch ON 11 to 14 V
      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
    4. Reconnect the ignition coil assembly connectors.

      NG: Go to step  5

      Fig 2: Identifying Ignition Coil Assembly Connectors
      G06040546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the ignition coil assembly connectors.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-2 (IGF) - B29-81 (IGF1) Always Below 1 Ω
      B22-2 (IGF) - B29-81 (IGF1) Always Below 1 Ω
      B23-2 (IGF) - B29-81 (IGF1) Always Below 1 Ω
      B24-2 (IGF) - B29-81 (IGF1) Always Below 1 Ω

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-3 (IGT1) - B29-85 (IGT1) Always Below 1 Ω
      B22-3 (IGT2) - B29-84 (IGT2) Always Below 1 Ω
      B23-3 (IGT3) - B29-83 (IGT3) Always Below 1 Ω
      B24-3 (IGT4) - B29-82 (IGT4) Always Below 1 Ω

      Standard Resistance (Check for Short) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-2 (IGF) or B29-81 (IGF1) - Body ground Always 10 kΩ or higher
      B22-2 (IGF) or B29-81 (IGF1) - Body ground Always 10 kΩ or higher
      B23-2 (IGF) or B29-81 (IGF1) - Body ground Always 10 kΩ or higher
      B24-2 (IGF) or B29-81 (IGF1) - Body ground Always 10 kΩ or higher
      Fig 3: Identifying Ignition Coil Assembly Connectors And ECM Connector
      G06040080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance (Check for Short) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-3 (IGT1) or B29-85 (IGT1) - Body ground Always 10 kΩ or higher
      B22-3 (IGT2) or B29-84 (IGT2) - Body ground Always 10 kΩ or higher
      B23-3 (IGT3) or B29-83 (IGT3) - Body ground Always 10 kΩ or higher
      B24-3 (IGT4) or B29-82 (IGT4) - Body ground Always 10 kΩ or higher
    4. Reconnect the ECM connector.
    5. Reconnect the ignition coil assembly connectors.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY ECM) 

      OK: Go to Next Step 

  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream 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. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    8. Read the DTCs.

      Result 

      RESULT CHART

      Result Proceed to
      Same DTC output A
      Different ignition coil DTC output B

      B: REPLACE IGNITION COIL ASSEMBLY  (See IGNITION COIL AND SPARK PLUG )

      A: REPLACE ECM  (See REMOVAL )

  5. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - INTEGRATION RELAY) 
    1. Disconnect the ignition coil assembly connectors.
    2. Remove the integration relay from the engine room relay block.
    3. Disconnect the integration relay connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-1 (+B) - 1A-4 Always Below 1 Ω
      B22-1 (+B) - 1A-4 Always Below 1 Ω
      B23-1 (+B) - 1A-4 Always Below 1 Ω
      B24-1 (+B) - 1A-4 Always Below 1 Ω

      Standard Resistance (Check for Short) 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      B21-1 (+B) or 1A-4-Body ground Always 10 kΩ or higher
      B22-1 (+B) or 1A-4 -Body ground Always 10 kΩ or higher
      B23-1 (+B) or 1A-4 -Body ground Always 10 kΩ or higher
      B24-1 (+B) or 1A-4 -Body ground Always 10 kΩ or higher
    5. Reconnect the integration relay connector.
    6. Reinstall the integration relay.
    7. Reconnect the ignition coil assembly connectors.

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY INTEGRATION RELAY) 

      Fig 4: Checking Harness And Connector (Ignition Coil Assembly - Integration Relay)
      G06040548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: CHECK ECM POWER SOURCE CIRCUIT  (See ECM POWER SOURCE CIRCUIT )

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