SFI SYSTEM, Diagnostic DTC:P0607

DTC Code DTC Name
P0607 Control Module Performance

MONITOR DESCRIPTION

The ECM continuously monitors its internal processors (CPUs) and heated oxygen sensor transistors. This self-check ensures that the ECM is functioning properly.

DTC No. DTC Detection Condition Trouble Area
P0607

  • The ECM CPUs malfunction.

  • The heated oxygen sensor transistor (built into the ECM) malfunctions.

  • ECM

  • Heated oxygen sensor (sensor 2)

  • Exhaust gas leak

MONITOR STRATEGY

Related DTCs P0607: Control module performance
Required Sensors/Components (Main) ECM
Required Sensors/Components (Related) Heated oxygen sensor
Frequency of Operation Continuous
Duration 60 seconds
MIL Operation Immediate
Sequence of Operation None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored None
Engine Running
Estimated heated oxygen sensor temperature 450 to 750°C (842 to 1382°F)

TYPICAL MALFUNCTION THRESHOLDS

Heated oxygen sensor transistors Fail

CONFIRMATION DRIVING PATTERN

A01HTE5E03

  1. Stop the engine for 30 minutes or more [A].

  2. Connect the Techstream to the DLC3.

  3. Turn the power switch on (IG) and turn the Techstream on [B].

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the power switch off and wait for at least 30 seconds.

  6. Turn the power switch on (IG) and turn the Techstream on [C].

  7. Put the engine in inspection mode (maintenance mode) Click here.

  8. Start the engine and wait 2 minutes [D].

  9. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher [E].

  10. Idle the engine for 1 minute [F].

  11. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle [G].

    CAUTION:

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

  12. Drive the vehicle at 56 to 80 km/h (35 to 50 mph) for 5 minutes or more [H].

    CAUTION:

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

  13. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [I].

  14. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  16. Input the DTC: P0607, P0136, P0137 or P0138.

  17. Check the DTC judgment result.

    Techstream Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform steps [E] through [I] again.

  18. If no pending DTC is output, perform a universal trip and check for permanent DTCs Click here.

    Tech Tips


    • If a permanent DTC is output, the system is malfunctioning.

    • If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

Tech Tips

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 help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0607)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Read the DTCs.

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

    B

    CHECK FOR EXHAUST GAS LEAK Click here

    A

  2. INSPECT DTC (DTC P0136, P0137 OR P0138)


    1. Refer to the P0136, P0137 or P0138 flowchart.

      Tech Tips


      • If P0136 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If P0137 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If P0138 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or higher).


    NEXT

    INSPECT ECM Click here

  3. CHECK FOR EXHAUST GAS LEAK


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Put the engine in inspection mode (maintenance mode) Click here.

    5. Start the engine.

    6. Allow the engine to idle, and then rev the engine.

    7. Check for exhaust gas leaks around the heated oxygen sensor.

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

      Tech Tips


      • If no exhaust gas leaks are present, there may be a malfunction in the heated oxygen sensor circuit.

      • 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 Click here.


    NEXT

  4. PERFORM CONFIRMATION DRIVING PATTERN

    A01HUFZE74

    1. Clear the DTCs Click here.

    2. Connect the Techstream to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the Techstream on.

    5. Put the engine in inspection mode (maintenance mode) Click here.

    6. Start the engine.

    7. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher.

    8. Perform the driving pattern.

      CAUTION:

      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 (37 and 50 mph) for 5 minutes.

    9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTC P0136, P0137, P0138 and/or P0607 are output A
      Only P0607 is output B
      DTC is not output C

    B

    REPLACE ECM Click here

    C

    INSPECT ECM Click here

    A

  5. INSPECT DTC (DTC P0136, P0137 OR P0138)


    1. Refer to the P0136, P0137 or P0138 flowchart.

      Tech Tips


      • If P0136 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If P0137 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If P0138 is output, troubleshoot for that DTC first Click here. Then proceed to "Inspect ECM".

      • If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or higher).


    NEXT

  6. INSPECT ECM


    1. Clear the DTCs Click here.

    2. Stop the engine and wait for 30 minutes.

    3. Connect the Techstream to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the Techstream on.

    6. Put the engine in inspection mode (maintenance mode) Click here.

    7. Start the engine and allow it to idle for 2 minutes.

    8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    9. Read the DTCs.

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

    B

    REPLACE ECM Click here

    A

    END