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TORQUE VECTORING DIFFERENTIAL SYSTEM, Diagnostic DTC:C2A12, C2A17

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DTC Code DTC Name
C2A12 RH Oil Temperature Sensor Circuit (Low)
C2A17 LH Oil Temperature Sensor Circuit (Low)
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DESCRIPTION

If a short in the torque transfer module temperature sensor is detected, a DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
C2A12 RH Oil Temperature Sensor Circuit (Low)

Diagnosis Condition:


  • IG power source voltage is 10 V or more.

Abnormal condition:


  • Short in the temperature sensor of the torque transfer module (RH side)

Malfunction Time:


  • 3 seconds or more

Trip logic:


  • 1 trip detection logic

  • Torque vectoring differential ECU assembly

  • Temperature sensor (RH side)

  • Torque transfer module motor sub-assembly (RH side)

  • Wire harness or connector

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
C2A17 LH Oil Temperature Sensor Circuit (Low)

Diagnosis Condition:


  • IG power source voltage is 10 V or more.

Abnormal condition:


  • Short in the temperature sensor of the torque transfer module (LH side)

Malfunction Time:


  • 3 seconds or more

Trip logic:


  • 1 trip detection logic

  • Torque vectoring differential ECU assembly

  • Temperature sensor (LH side)

  • Torque transfer module motor sub-assembly (LH side)

  • Wire harness or connector

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Tip:

  • If the torque vectoring differential ECU assembly has been replaced, perform "All Learning".

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  • If the torque transfer module motor sub-assembly has been replaced or removed and installed, perform "Motor Exchange Learning".

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PROCEDURE


  1. Click here

    CHECK DTC OUTPUT (TVD)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Enter the following menus: Chassis / TVD / Trouble Codes.

    4. Check for DTCs.


      1. Chassis > TVD > Trouble Codes


      Result
      Result Proceed to
      DTC C2A12 is output. A
      DTC C2A17 is output. B

    5. Turn the engine switch off.


  2. Click here

    INSPECT TEMPERATURE SENSOR (RH SIDE)


    1. Disconnect the A torque transfer module motor sub-assembly (RH side) connector.

    2. A01FLUYC03
      *1 Temperature Sensor (RH Side)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (TMPR) - Body ground Always 10 kΩ or higher
      A-1 (TMPR) - A-2 (TMGR) 0 °C (32 °F) to 155 °C (311 °F) 0.2 to 30.8 kΩ

    3. Reconnect the A torque transfer module motor sub-assembly (RH side) connector.

      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (RH SIDE) (HARNESS AND CONNECTOR)


    1. Remove the torque vectoring differential FDU (Final Drive Unit).

      Click here

    2. Disconnect the V5 and A torque transfer module motor sub-assembly (RH side) connectors.

    3. A01FOAAC04
      *1 Torque Transfer Module Motor Sub-assembly (RH Side)
      *a Temperature Sensor (RH Side) Connector

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (TMPR) - Body ground Always 10 kΩ or higher
      A-1 (TMPR) - A-2 (TMGR) Always 10 kΩ or higher

    4. Reconnect the V5 and A torque transfer module motor sub-assembly (RH side) connectors.

    5. Install the torque vectoring differential FDU (Final Drive Unit).

      Result
      Proceed to
      OK
      NG

  4. Click here

    CHECK HARNESS AND CONNECTOR (TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLY - TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (RH SIDE))


    1. Disconnect the V3 torque vectoring differential ECU assembly connector.

    2. Remove the torque vectoring differential FDU (Final Drive Unit).

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    3. Disconnect the V5 torque transfer module motor sub-assembly (RH side) connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      V5-5(TMPR) - Body ground Always 10 kΩ or higher
      V5-5 (TMPR) - V5-10 (TMGR) Always 10 kΩ or higher

    5. Reconnect the V5 torque transfer module motor sub-assembly (RH side) connector.

    6. Install the torque vectoring differential FDU (Final Drive Unit).

    7. Reconnect the V3 torque vectoring differential ECU assembly connector.

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    INSPECT TEMPERATURE SENSOR (LH SIDE)


    1. Disconnect the B torque transfer module motor sub-assembly (LH side) connector.

    2. A01FLUYC04
      *1 Temperature Sensor (LH Side)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-1 (TMPL) - Body ground Always 10 kΩ or higher
      B-1 (TMPL) - B-2 (TMGL) 0 °C (32 °F) to 155 °C (311 °F) 0.2 to 30.8 kΩ

    3. Reconnect the B torque transfer module motor sub-assembly (LH side) connector.

      Result
      Proceed to
      OK
      NG

  6. Click here

    CHECK TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (LH SIDE) (HARNESS AND CONNECTOR)


    1. Remove the torque vectoring differential FDU (Final Drive Unit).

      Click here

    2. Disconnect the V7 and B torque transfer module motor sub-assembly (LH side) connectors.

    3. A01FOAAC05
      *1 Torque Transfer Module Motor Sub-assembly (LH Side)
      *a Temperature Sensor (LH Side) Connector

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-1 (TMPL) - Body ground Always 10 kΩ or higher
      B-1 (TMPL) - B-2 (TMGL) Always 10 kΩ or higher

    4. Reconnect the V7 and B torque transfer module motor sub-assembly (LH side) connectors.

    5. Install the torque vectoring differential FDU (Final Drive Unit).

      Result
      Proceed to
      OK
      NG

  7. Click here

    CHECK HARNESS AND CONNECTOR (TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLY - TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (LH SIDE))


    1. Disconnect the V3 torque vectoring differential ECU assembly connector.

    2. Remove the torque vectoring differential FDU (Final Drive Unit).

      Click here

    3. Disconnect the V7 torque transfer module motor sub-assembly (LH side) connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      V7-5 (TMPL) - Body ground Always 10 kΩ or higher
      V7-5 (TMPL) - V7-10 (TMGL) Always 10 kΩ or higher

    5. Reconnect the V7 torque transfer module motor sub-assembly (LH side) connector.

    6. Install the torque vectoring differential FDU (Final Drive Unit).

    7. Reconnect the V3 torque vectoring differential ECU assembly connector.

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR