Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026PV6
Model Year Start: 2023 Model: Corolla HV Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P060A94; Hybrid/EV Powertrain Control Module Monitoring Processor Unexpected Operation; 2023 - 2025 MY Corolla HV [09/2022 -        ]

DTC

P060A94

Hybrid/EV Powertrain Control Module Monitoring Processor Unexpected Operation

DTC SUMMARY

MALFUNCTION DESCRIPTION

The main CPU and sub CPU of the hybrid vehicle control ECU monitor their internal operation and each other for malfunctions.

The cause of this malfunction may be the following:

Hybrid vehicle control ECU internal malfunction

  • Hybrid vehicle control ECU malfunction

Vehicle speed sensor malfunction

  • Discrepancy between motor resolver signal and actual vehicle speed

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and will store these DTCs when it detects an internal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

P060A94

Hybrid/EV Powertrain Control Module Monitoring Processor Unexpected Operation
  • The sub CPU value received by the main CPU of the hybrid vehicle control ECU exceeds the threshold for a certain period of time.
  • The hybrid vehicle control ECU detects an internal malfunction due to an abnormal calculation or sensor malfunction.

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning:

Comes on

SAE Code:

P060A

MONITOR DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation. If the internal operation is malfunctioning, the hybrid vehicle control ECU illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs

P060A (INF P060A94): Internal control module monitoring processor performance

Required sensors/components

Hybrid vehicle control ECU

Frequency of operation

Continuous

Duration

TMC's intellectual property

MIL operation

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 P060A (INF P060A94) 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 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY

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

    Click here 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): DTC CHECK / CLEAR

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the GTS on.
  6. Turn the ignition switch to ON (READY) and wait for 10 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, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

HINT:

  • P060A94 may be output as a result of the malfunction indicated by the DTCs in table below.
    1. The chart above is listed in inspection order of priority.
    2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

Malfunction Content

System

Relevant DTC

Sensor and actuator circuit malfunction

Motor generator control system

P0A3F16

Drive Motor "A" Position Sensor Circuit Voltage Below Threshold

P0A3F21

Drive Motor "A" Position Sensor Signal Amplitude < Minimum

P0A3F22

Drive Motor "A" Position Sensor Signal Amplitude > Maximum

PROCEDURE

1.

CHECK DTC OUTPUT (BRAKE BOOSTER)

(a) Check for DTCs.

Chassis > Brake Booster > Trouble Codes

Result

Proceed to

Electronically Controlled Brake System DTCs are not output

A

Electronically Controlled Brake System DTCs are output

B

(b) Turn the ignition switch off.

B

GO TO DTC CHART (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) 2023 MY Corolla Corolla HV [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): DIAGNOSTIC TROUBLE CODE CHART 2023 - 2025 MY Corolla Corolla HV [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): DIAGNOSTIC TROUBLE CODE CHART

A

2.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

P060A94 only is output.

A

DTCs except P060A94 are output.

B

(b) Turn the ignition switch off.

B

GO TO DTC CHART (HYBRID CONTROL SYSTEM)
A

3.

CHECK FREEZE FRAME DATA (HYBRID CONTROL)

(a) Read the Freeze Frame Data of DTC P060A94.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

Vehicle was stopped ("FR Wheel Speed" and "FL Wheel Speed" are between 0 and 1.4 km/h (0 and 1 mph)) but "Vehicle Speed" was 3 km/h (2 mph) or more

A

Vehicle was stopped ("FR Wheel Speed" and "FL Wheel Speed" are between 0 and 1.4 km/h (0 and 1 mph)) and "Vehicle Speed" was less than 3 km/h (2 mph)

B

(b) Turn the ignition switch off.

A

For the inspection method of the motor resolver circuit, refer to DTC P0A3F16.

Click here GO TO MOTOR RESOLVER CIRCUIT

B

REPLACE HYBRID VEHICLE CONTROL ECU