DTC    P0607    Control Module Performance

for Preparation Click here


DESCRIPTION

The ECM continuously monitors its internal processors (CPUs) and heated oxygen sensor (HO2S) transistors. This self-check ensures that the ECM is functioning properly.

DTC No.
DTC Detection Condition
Trouble Area
P0607
  1. ECM CPUs malfunction
  2. Heated oxygen sensor transistor (built into the ECM) malfunction
  1. ECM
  2. Heated oxygen sensor
  3. Exhaust gas leak

MONITOR STRATEGY


Related DTCs
None
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 800°C (842 to 1472°F)

TYPICAL MALFUNCTION THRESHOLDS


Heated oxygen sensor transistors
Fail

CONFIRMATION DRIVING PATTERN


A212371E04

  1. Stop the engine for 30 minutes or more [A].
  2. Connect the Techstream to the DLC3.
  3. Turn the ignition switch to ON and turn the Techstream on [B].
  4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Turn the ignition switch to ON and turn the Techstream on [C].
  7. Start the engine, and wait 2 minutes [D].
  8. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher [E].
  9. Idle the engine for 1 minute [F].
  10. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle [G].
  11. Drive the vehicle at 56 to 80 km/h (35 to 50 mph) for 5 minutes or more [H].
  12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [I].
  13. Read the pending DTC.

    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  15. Input the DTC: P0607, P0136, P0137, P0138, P0156, P0157 or P0158.
  16. Check the DTC judgment result.

    Tester Display
    Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

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

    HINT:
    If the judgment result shows ABNORMAL, the system has a malfunction.
  17. If the judgment result shows INCOMPLETE or N/A, perform steps [E] through [I].
  18. If no pending DTC is output, perform a universal trip and check for permanent DTCs (Click here).

    HINT:
    1. If a permanent DTC is output, the system is malfunctioning.
    2. If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT
  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Enter the following menu: Powertrain / Engine and ECT / Trouble Codes.

  1. Read the DTCs (Click here).

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


B
Go to step 3
A


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

HINT:
  1. If P0136 or P0156 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  2. If P0137 or P0157 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  3. If P0138 or P0158 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  4. 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 step 6

3.CHECK FOR EXHAUST GAS LEAK
  1. Allow the engine to idle and rev the engine.

  1. 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:
    1. If no exhaust gas leaks are present, a malfunction in the heated oxygen sensor circuit is suspected.
    2. If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor.

NEXT


4.PERFORM CONFIRMATION DRIVING PATTERN

A144392E23

  1. Clear DTC (Click here).

  1. Connect the Techstream to the DLC3.

  1. Start the engine.

  1. Warm up the engine until the engine coolant temperature becomes 75°C (167°F) or more.

  1. Perform the drive pattern.

    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.

  1. Enter the following menu: Powertrain / Engine and ECT / Trouble Codes.

  1. 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


B
REPLACE ECM (Click here)

C
Go to step 6
A


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

HINT:
  1. If P0136 or P0156 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  2. If P0137 or P0157 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  3. If P0138 or P0158 is output, troubleshoot for that DTC first (Click here). Then proceed to "INSPECT ECM".
  4. 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


6.INSPECT ECM
  1. Connect the Techstream to the DLC3.

  1. Clear DTC (Click here).

  1. Stop the engine and wait for 30 minutes.

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

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

  1. Check the DTCs.

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


B
REPLACE ECM (Click here)
A

END