Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Motor Electronics Coolant Temperature Sensor Circuit Short to Ground (P0A0011,P0A0015)

Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Motor Generator Control System / Motor Electronics Coolant Temperature Sensor Circuit Short to Ground (P0A0011,P0A0015)

DESCRIPTION

Refer to the description for DTC P0A001C.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

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

SAE Code:

P0A02

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

SAE Code:

P0A03

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.

    Click here

  • 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 ignition switch off and wait for 2 minutes or more.
  3. Turn the ignition switch to ON 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.

  4. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  5. 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:

After the repair, clear the DTCs. If the value of Data List item "Inverter Coolant Temperature" is not abnormal (110°C (230°F) or -40°C (-40°F)) when the ignition switch is turned to ON, the condition is judged as normal.

(If DTC P0A0011 is output, 110°C (230°F) will be displayed and if DTC P0A0015 is output, -40°C (-40°F) will be displayed.)

PROCEDURE

1.

REPLACE INVERTER WITH CONVERTER ASSEMBLY

Click here

NEXT

COMPLETED

    READ NEXT:

     Motor Electronics Coolant Temperature Sensor Circuit Voltage Out of Range (P0A001C)

    DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate that the temperature sensor value is abnormal. The cause of this malfunction may be one of the following: Area Main Malfunction Descrip

     Generator Control Module Circuit Intermittent (P0A1B1F)

    DESCRIPTION If the motor generator control ECU, which is built into the inverter with converter assembly, is reset due to a problem with the power source in the inverter, the motor generator control E

     Drive Motor "A" Control Module Unexpected Operation (P0A1B94)

    DTC SUMMARY MALFUNCTION DESCRIPTION For the calculation processing (in particular, calculation processing related to driving force such as torque calculations and inverter control) that takes place in

    SEE MORE:

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 REAR DRIVE SHAFT ASSEMBLY 42340B - - Tightening torqu

     Room Temperature Sensor Circuit Short to Battery or Open (B141A15)

    DESCRIPTION The cooler thermistor (room temperature sensor) is installed in the instrument panel to detect the cabin temperature, which is used to control the air conditioning system. The resistance of the cooler thermistor (room temperature sensor) changes in accordance with the cabin temperature.

    © 2020-2024 Copyright www.tcorollacross.com