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Home >> Lexus >> 2020 >> LX 570 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (4 Of 7) >> SFI System >> DTC P0607: Control Module Performance [09/2015 - ] >> Procedure
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DTC P0607: Control Module Performance [09/2015 - ]: Procedure

  1. CHECK ANY OTHER DTCS OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG) and turn the Techstream on.
    3. Enter the following menu: Powertrain / Engine / Trouble Codes.
    4. Read the DTC (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
      RESULT

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

    Result: 

    B 

    See step  3

    Result: 

    A 

    See step  2

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

      HINT: 

    Result: 

    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.
      • Perform "Inspection After Repair" after repairing or replacing the exhaust system (Refer to INITIALIZATION [09/2015 - ] ).

    Result: 

    NEXT 

    See step  4

  4. PERFORM CONFIRMATION DRIVING PATTERN 
    GTY147404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Clear DTC (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    2. Connect the Techstream to the DLC3.
    3. Start the engine.
    4. Warm up the engine until the engine coolant temperature becomes 75°C (167°F) or more.
    5. Perform the drive pattern.
      WARNING:

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

      1. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle.
      2. Drive the vehicle between 60 and 80 km/h (35 and 50 mph) for 5 minutes.
    6. Enter the following menu: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.
      RESULT

      Result Proceed to
      P0607 and P0136, P0137, P0138, P0156, P0157 or P0158 are output A
      Only P0607 B
      No DTC output C

    Result: 

    B 

    REPLACE ECM 

    (Refer to REMOVAL [09/2015 - ] )

    Result: 

    C 

    See step  6

    Result: 

    A 

    See step  5

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

      HINT: 

    Result: 

    NEXT 

    See step  6

  6. INSPECT ECM 
    1. Clear DTC (Refer to DTC CHECK / CLEAR [09/2015 - ] ).
    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 menu: Powertrain / Engine / Trouble Codes.
    7. Check the DTCs.
      RESULT

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

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE ECM 

    (Refer to REMOVAL [09/2015 - ] )

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