HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P0A0011,P0A0015; Motor Electronics Coolant Temperature Sensor Circuit Short to Ground; 2021 - 2022 MY Corolla Corolla HV [04/2020

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001N32W
Model Year Start: 2021	Model: Corolla	Prod Date Range: [04/2020 - 09/2022]
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P0A0011,P0A0015; Motor Electronics Coolant Temperature Sensor Circuit Short to Ground; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

DTC

P0A0011

Motor Electronics Coolant Temperature Sensor Circuit Short to Ground

DTC

P0A0015

Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open

DESCRIPTION

Refer to the description for DTC P0A001C.

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DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A0011

Motor Electronics Coolant Temperature Sensor Circuit Short to Ground

Short to ground detected in HV coolant temperature sensor circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0A0015

Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open

Open or short to +B detected in HV coolant temperature sensor circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

Related Data List

DTC No.	Data List
P0A0011	Inverter Coolant Temperature
P0A0015	Inverter Coolant Temperature

MONITOR DESCRIPTION

If the motor generator control ECU detects a malfunction in the HV coolant temperature sensor it will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs	P0A02 (INF P0A0011): Motor Electronics Coolant Temperature Sensor Range check (Low voltage) P0A03 (INF P0A0015): Motor Electronics Coolant Temperature Sensor Range check (High voltage)
Required sensors/components	HV coolant temperature sensor
Frequency of operation	Continuous
Duration	TMC's intellectual property
MIL operation	Immediately
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

Motor generator control ECU

DTC P0A02 (INF P0A0011) is not detected

DTC P0A03 (INF P0A0015) 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.
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When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the power switch on (IG) and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for 2 minutes or more.
Turn the power switch on (IG) and turn the Techstream on.
With power switch on (IG) and wait for 5 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.
Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
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.

CAUTION / NOTICE / HINT

HINT:

After the repair, clear the DTCs. If the value of Data List item "Inverter Coolant Temperature" is not abnormal (110°C (230°F) or -50°C (-58°F)) when the power switch is turned on (IG), the condition is judged as normal.

(If DTC P0A0011 is output, 110°C (230°F) will be displayed and if DTC P0A0015 is output, -50°C (-58°F) will be displayed.)

PROCEDURE

1.	REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS

Click here

COMPLETED