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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MIL CONDITION 
    1. Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to the ON position.

      OK: MIL lights up. 

    OK: SYSTEM OK 

    NG: Go to next step 

  2. CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch to the ON position and turn the tester on.
    3. Check for communication between the tester and ECM.

      Result 

      DTC RESULT REFERENCE

      Result Proceed to
      Communication is possible A
      Communication is not possible B

    A: Go TO MIL CIRCUIT 

    B: Go to next step 

  3. CHECK MIL (THROTTLE POSITION SENSOR) 
    1. Disconnect the throttle body connector.
    2. Turn the ignition switch to the ON position.
    3. Check the MIL.

      Result 

      DTC RESULT REFERENCE

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the throttle body connector.

    A: REPLACE THROTTLE BODY ASSEMBLY 

    B: Go to next step 

  4. CHECK MIL (ACCELERATOR PEDAL POSITION SENSOR) 
    1. Disconnect the accelerator pedal position sensor connector.
    2. Turn the ignition switch to the ON position.
    3. Check the MIL.

      Result 

      DTC RESULT REFERENCE

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the accelerator pedal position sensor connector.

    A: REPLACE ACCELERATOR PEDAL ASSEMBLY 

    B: Go to next step 

  5. CHECK MIL (CANISTER PUMP MODULE) 
    1. Disconnect the canister pump module connector.
      Fig 1: Identifying Canister Pump Module Connector
      G04973329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to the ON position.
    3. Check the MIL.

      Result 

      DTC RESULT REFERENCE

      Result Proceed to
      MIL illuminates A
      MIL does not illuminate B
    4. Reconnect the canister pump module connector.

    A: REPLACE CHARCOAL CANISTER ASSEMBLY 

    B: Go to next step 

  6. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the throttle body connector.
    2. Disconnect the accelerator pedal position sensor connector.
    3. Disconnect the canister pump module connector.
    4. Disconnect the ECM connectors.
    5. Measure the resistance according to the value (s) in the table below.

      Standard resistance (Check for short) 

      RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      E8-18 (VC) - Body ground 10 kΩ or higher
      E4-26 (VCPA) - Body ground 10 kΩ or higher
      E4-27 (VCP2) - Body ground 10 kΩ or higher
    6. Reconnect the throttle body connector.
    7. Reconnect the accelerator pedal position sensor connector.
    8. Reconnect the canister pump module connector.
    9. Reconnect the ECM connectors.
      Fig 2: Identifying ECM Connectors Terminals
      G05128310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ECM 

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