Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Control Module Performance Bank 2 Component Internal Failure (P060596,P060796)

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.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

HINT:

• After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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• When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

  Click here

1. Stop the engine for 30 minutes or more.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG).
4. Turn the Techstream on.
5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
6. Turn the engine switch off and wait for at least 30 seconds.
7. Turn the engine switch on (IG) [A].
8. Turn the Techstream on.
9. Start the engine and wait 2 minutes [B].
10. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher [C].
11. Idle the engine for 1 minute [D].
12. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle [E].

    CAUTION:

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

13. Drive the vehicle at 60 to 80 km/h (37 to 50 mph) for 5 minutes or more [F].

    CAUTION:

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

14. Enter the following menus: Powertrain / Engine / Trouble Codes [G].
15. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
16. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
17. Input the DTC: P060596, P060796, P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617.
18. 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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • If the judgment result is INCOMPLETE, perform steps [B] through [F] again.
    • [A] to [G]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

CAUTION / NOTICE / HINT

HINT:

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

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

B

GO TO STEP 3

A

(a) Refer to the P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 flowchart.

HINT:

• If DTC P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 is output, troubleshoot for that DTC first. Then proceed to "Inspect ECM".

  Click here

• If DTC P060596 or P060796 and P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 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

GO TO STEP 8

(a) Allow the engine to idle, and then rev the engine.

(b) 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".

HINT:

• 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

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTC.

(e) Turn the engine switch off and wait for at least 30 seconds.

NEXT

(a) Start the engine.

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

(c) Drive the vehicle in accordance with the driving pattern described in Confirmation 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.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

B

REPLACE ECM

C

GO TO STEP 8

A

(a) Refer to the P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 flowchart.

HINT:

• If DTC P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 is output, troubleshoot for that DTC first. Then proceed to "Inspect ECM".

  Click here

• If DTC P060596 or P060796 and P013611, P013613, P013614, P013615, P013617, P015611, P015613, P015614, P015615 or P015617 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

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTC.

NEXT

(a) Stop the engine and wait for 30 minutes.

(b) Start the engine and allow it to idle for 2 minutes.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

A

END

B

REPLACE ECM