Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure (P060647,...,P1CE371)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / Hybrid / Battery Control / Hybrid Control System / Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure (P060647,...,P1CE371)

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and will store these DTCs when it detects an internal malfunction. If these DTCs are output, replace the hybrid vehicle control ECU.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P060647

Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure

ECU internal malfunction

(HV-CPU error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060687

Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message

ECU internal malfunction

(Communication error (main to sub CPU))

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A29

Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid

ECU internal malfunction

(Sub CPU circuit error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A44

Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure

ECU internal malfunction

(Sub CPU RAM error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A45

Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure

ECU internal malfunction

(Sub CPU ROM error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A47

Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure

ECU internal malfunction

(Sub CPU WDC error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A49

Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure

ECU internal malfunction

(Sub CPU calculation check error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060A87

Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message

ECU internal malfunction

(Communication error (sub to main CPU))

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060B1C

Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range

ECU internal malfunction

(AD conversion error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060B49

Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure

ECU internal malfunction

(AD timeout error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P060B71

Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck

ECU internal malfunction

(AD multiplexer error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P1C9E9F

Hybrid/EV System Reset Stuck Off

ECU internal malfunction

(Primary check error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P1CE31C

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range

ECU internal malfunction

(Sub CPU AD conversion error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P1CE349

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure

ECU internal malfunction

(Sub CPU AD timeout error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

P1CE371

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck

ECU internal malfunction

(Sub CPU AD multiplexer error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning Light:

Comes on

MONITOR DESCRIPTION

The hybrid vehicle control ECU performs diagnostic tests to verify proper operation of internal ECU systems. If there is an internal ECU malfunction, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0606 (INF P060647): Control module processor performance

P0606 (INF P060687): Control module processor verify communication

P060A (INF P060A29/P060A44/P060A45/P060A47/P060A49): Internal control module monitoring processor performance

P060A (INF P060A87): Internal control module monitoring processor verify communication

P060B (INF P060B1C/P060B49/P060B71): Internal control module A/D processing performance

P1C9E (INF P1C9E9F): Control module processor restart

P1CE3 (INF P1CE31C/P1CE349/P1CE371): Internal control module monitoring processor A/D processing performance

Required sensors/components

Hybrid vehicle control ECU

Frequency of operation

Continuous

Duration

TMC's intellectual property

MIL operation

Immediately / 1 driving cycle

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored

TMC's intellectual property

Other conditions belong to TMC's intellectual property

-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

-

COMPONENT OPERATING RANGE

Hybrid vehicle control ECU

DTC P0606 (INF P060647/P060687) is not detected

DTC P060A (INF P060A29/P060A44/P060A45/P060A47/P060A49/P060A87) is not detected

DTC P060B (INF P060B1C/P060B49/P060B71) is not detected

DTC P1C9E (INF P1C9E9F) is not detected

DTC P1CE3 (INF P1CE31C/P1CE349/P1CE371) is not detected

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.

    Click here

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

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. With power switch on (IG) and wait for 15 seconds 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.

  7. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. Check the DTC judgment result.

    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.

PROCEDURE

1.

REPLACE HYBRID VEHICLE CONTROL ECU

Click here

NEXT

END
    System Voltage (BATT) Circuit Short to Ground or Open (P056014)

    Hybrid/EV Powertrain Control Module Processor Unexpected Operation (P060694)

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