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Home >> Lexus >> 2013 >> IS 250C Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0190-P0630)) >> SFI System >> DTC P0607: Control Module Performance >> Procedure
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DTC P0607: Control Module Performance: Procedure

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0607) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Read the DTCs.

      Result

      Result Proceed to
      DTC P0607 and P0136, P0137, P0138, P0156, P0157 or P0158 are output A
      DTC P0607 is output B

    B → See step   3 

    A: Go to next step 

  2. INSPECT DTC (P0136, P0137, P0138, P0156, P0157 OR P0158) 
    1. Refer to the P0136, P0137, P0138, P0156, P0157 or P0158 flowchart.

      HINT: 

      • If P0136 or P0156 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If P0137 or P0157 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If P0138 or P0158 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If DTC P0607 and P0136, P0137, P0138, P0156, P0157 or P0158 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).

    NEXT → See step   6 

  3. CHECK FOR EXHAUST GAS LEAK 
    1. Allow the engine to idle and rev the engine.
    2. Check for exhaust gas leaks around the heated oxygen sensor.

      If any exhaust gas leaks are present, repair it and proceed to "Perform Confirmation Driving Pattern". If no exhaust gas leaks are present, proceed to "Perform Confirmation Driving Pattern".

      HINT: 

      • If no exhaust gas leaks are present, a malfunction in the heated oxygen sensor circuit is suspected.
      • If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor.

    NEXT: Go to next step 

  4. PERFORM CONFIRMATION DRIVING PATTERN 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2012 - ] .
    2. Connect the Techstream to the DLC3.
    3. Warm up the engine until the engine coolant temperature becomes 75°C (167°F) or more.
    4. Perform the driving pattern.
      WARNING:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

      GTY320554Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Accelerate the vehicle until 80 km/h (50 mph) and stop the vehicle.
      2. Drive the vehicle between 60 to 80 km/h (37 to 50 mph) for 5 minutes.
    5. Enter the following menus: Powertrain / Engine / Trouble Codes.
    6. Read the pending DTCs.

      Result

      Result Proceed to
      DTC P0607 and P0136, P0137, P0138, P0156, P0157 or P0158 are output A
      DTC P0607 is output B
      DTC is not output C

    B → See step   7 

    C → See step   6 

    A: Go to next step 

  5. INSPECT DTC (P0136, P0137, P0138, P0156, P0157 OR P0158) 
    1. Refer to the P0136, P0137, P0138, P0156, P0157 or P0158 flowchart.

      HINT: 

      • If P0136 or P0156 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If P0137 or P0157 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If P0138 or P0158 is output, troubleshoot for that DTC first. Refer to INSPECTION PROCEDURE . Then proceed to "Inspect ECM".
      • If DTC P0607 and P0136, P0137, P0138, P0156, P0157 or P0158 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).

    NEXT: Go to next step 

  6. INSPECT ECM 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2012 - ] .
    2. Stop the engine and wait for 30 minutes.
    3. Connect the Techstream to the DLC3.
    4. Start the engine and allow it to idle for 2 minutes.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.

      Result

      Result Proceed to
      DTC is not output A
      DTC P0607 is output B

    B → See step   7 

    A → END 

  7. REPLACE ECM. Refer to  REMOVAL [08/2012 - ]