Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HT4B
Model Year Start: 2020 Model: Corolla Prod Date Range: [03/2019 - 09/2022]
Title: 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: P060A; Internal Control Module Monitoring Processor Performance; 2020 - 2022 MY Corolla [03/2019 - 09/2022]

DTC

P060A

Internal Control Module Monitoring Processor Performance

MONITOR DESCRIPTION

The main CPU and sub CPU of the ECM perform data communication between each other. The main CPU monitors the communication and WDC pulses from the sub CPU. When the signal malfunctions below are detected, this DTC is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P060A

Internal Control Module Monitoring Processor Performance

A CPU reset is performed after one of the following conditions is met (1 trip detection logic):

  • There is an ECM main CPU error.
  • There is an ECM sub CPU error.
  • There is an electronic throttle monitoring CPU error.

ECM

Comes on

DTC stored

DTC for Mexico Models

- Applies

MONITOR STRATEGY

Related DTCs

P060A: Internal control module monitoring processor performance

Required Sensors/Components (Main)

ECM

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

-

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

None

TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions is met

1 or 2

1. All of the following conditions are met

-

CPU reset

1 time or more

Learned throttle position - Learned accelerator pedal position

0.4 V or higher

Command to electronic throttle actuator

Off

2. CPU reset

2 times or more

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the Techstream off.
  6. Turn the ignition switch off.
  7. Disconnect the Techstream.
  8. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
  9. Connect the cable to the negative (-) battery terminal.
  10. Connect the Techstream to the DLC3.
  11. Turn the ignition switch to ON.
  12. Turn the Techstream on.
  13. Wait 16 seconds or more.
  14. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  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 and ECT / Utility / All Readiness.
  17. Input the DTC: P060A.
  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

    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.
  19. If the judgment result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs.

    Click here 2020 - 2022 MY Corolla [03/2019 - 09/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

    HINT:

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

CAUTION / NOTICE / HINT

NOTICE:

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

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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

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine and ECT > Clear DTCs

(e) Turn the ignition switch off.

NEXT

2.

READ OUTPUT DTC (DTC P060A)

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

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

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Wait for 16 seconds or more.

(f) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

(g) Read the DTCs.

Powertrain > Engine and ECT > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P060A is output

B
A

CHECK FOR INTERMITTENT PROBLEMS

B

REPLACE ECM