Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: TCM Processor Watchdog/Safety MCU Failure (P061347)

DESCRIPTION

The TCM continuously monitors its CPU. If the output of the CPU deviates from the standard, the TCM will illuminate the MIL and store this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P061347

TCM Processor Watchdog/Safety MCU Failure

TCM CPU malfunction (1-trip detection logic)

TCM

Comes on

DTC stored

SAE Code:

P0613

MONITOR STRATEGY

Related DTC

P0613: TCM processor performance

Required Sensors/Components (Main)

TCM

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

Condition (A): 3 times

Condition (B): 2 times

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored

None

TYPICAL MALFUNCTION THRESHOLDS

Condition (A):

One of the following conditions is met

-

ROM check sum

Error

RAM read and write check

Fail

Condition (B):

One of the following conditions is met

-

Specific software routine A operation period check

Fail

Software functional check

Fail

CONFIRMATION DRIVING PATTERN

HINT:

  • After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
  • When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.

    Click here

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the GTS off.
  3. Turn the ignition switch off.
  4. Disconnect the GTS.
  5. Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.
  6. Connect the cable to the negative (-) auxiliary battery terminal.
  7. Turn the ignition switch to ON.
  8. Wait for 1 second or more. [*1]

    HINT:

    [*1]: Normal judgment procedure.

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

  9. Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
  10. Input the DTC: P061347.
  11. Check the DTC judgment result.

    GTS 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

    HINT:

    • 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 the normal judgment procedure again.

CAUTION / NOTICE / HINT

NOTICE:

  • Perform the universal trip to clear permanent DTCs.

    Click here

  • Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

HINT:

Read Freeze Frame Data using the GTS. The TCM 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.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Transmission > Clear DTCs

(b) Turn the ignition switch off.

NEXT

2.

CHECK DTC OUTPUT (DTC P061347)

(a) Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute.

(b) Connect the cable to the negative (-) auxiliary battery terminal.

(c) Turn the ignition switch to ON.

(d) Wait for 1 second or more.

(e) Read the DTCs.

Powertrain > Transmission > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P061347 is output

B

A

CHECK FOR INTERMITTENT PROBLEMS

Click here

Click here

B

3.

REPLACE TCM

Click here

NEXT

PERFORM REGISTRATION AND INITIALIZATION

for Registration: Click here

for Initialization: Click here

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