TORQUE VECTORING DIFFERENTIAL SYSTEM, Diagnostic DTC:C2A22, C2A23

DTC Code DTC Name
C2A22 RH Motor Current Malfunction
C2A23 LH Motor Current Malfunction

DESCRIPTION

If the TVD motor angle does not change when current is applied to the TVD motor or if current flow is detected during current cut, a malfunction is determined and a DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
C2A22 RH Motor Current Malfunction

Diagnosis Condition:


  • Both the IG power supply and PIG power supply are 10 V or more when the TVD system is activated.

Abnormal condition (1):


  • TVD motor (RH side) angle does not change.

Abnormal condition (2):


  • Current flow is detected during current cut

Malfunction Time:


  • 0.3 seconds or more

Trip logic:


  • 1 trip detection logic

  • Torque vectoring differential ECU assembly

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

  • Torque vectoring differential FDU (Final Drive Unit)

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
C2A23 LH Motor Current Malfunction

Diagnosis Condition:


  • Both the IG power supply and PIG power supply are 10 V or more when the TVD system is activated.

Abnormal condition (1):


  • TVD motor (LH side) angle does not change.

Abnormal condition (2):


  • Current flow is detected during current cut

Malfunction Time:


  • 0.3 seconds or more

Trip logic:


  • 1 trip detection logic

  • Torque vectoring differential ECU assembly

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

  • Torque vectoring differential FDU (Final Drive Unit)

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
DTC Detection Conditions: C2A22
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Both the IG power supply and PIG power supply are 10 V or more when the TVD system is activated ○ ○
Malfunction Status TVD motor (RH side) angle does not change ○ -
Current flow is detected during current cut - ○
Detection Time 0.3 seconds or more 0.3 seconds or more
Number of Trips 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C2A23
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Both the IG power supply and PIG power supply are 10 V or more when the TVD system is activated ○ ○
Malfunction Status TVD motor (LH side) angle does not change ○ -
Current flow is detected during current cut - ○
Detection Time 0.3 seconds or more 0.3 seconds or more
Number of Trips 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

CAUTION / NOTICE / HINT

Tech Tips


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

    Click here

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

    Click here

  • If the torque vectoring differential FDU (Final Drive Unit) has been replaced, perform "ASSY Exchange Learning".

    Click here

PROCEDURE


  1. 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.


      Chassis > TVD > Trouble Codes
      Result
      Result Proceed to
      DTC C2A22 is output. A
      DTC C2A23 is output. B
      DTCs other than DTC C2A22 and DTC C2A23 are output. C
      DTCs are not output. D

    5. Turn the engine switch off.


    B

    CHECK FREEZE FRAME DATA (TVD) Click here

    C

    GO TO DTC CHART Click here

    D

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. CHECK FREEZE FRAME DATA (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. Read the freeze frame data of DTC C2A22.


      Chassis > TVD > Trouble Codes
      Chassis > TVD
      Tester Display
      RH Motor Current Target Value (Main CPU -> Sub1 CPU)
      Result
      Result Proceed to

      The value of "RH Motor Current Target Value (Main CPU - Sub1 CPU)" listed under "0" in the freeze frame data is 0 A.

      ("RH Motor Current Target Value (Main CPU - Sub1 CPU)" = 0 A)

      		 A
      Others B

    5. Turn the engine switch off.


    A

    REPLACE TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLY Click here

    B

  3. READ VALUE USING GTS (RH REAL MOTOR ANGLE VALUE)


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

      Click here

    2. Remove the torque transfer module motor sub-assembly (RH side).

    3. Connect the wire harness to the V5 connector of the removed torque transfer module motor sub-assembly (RH side).

    4. Connect the GTS to the DLC3.

    5. Turn the engine switch on (IG).

      Note

      Do not start the engine with the torque transfer module motor sub-assembly disconnected from the torque transfer module as the gears of the torque transfer module motor sub-assembly may start moving.

    6. Enter the following menus: Chassis / TVD / Data List / RH Real Motor Angle Value.

    7. Read "RH Real Motor Angle Value" in the Data List while rotating the gears of the torque transfer module motor sub-assembly.


      Chassis > TVD > Data List
      Tester Display
      RH Real Motor Angle Value
      Result
      Result Proceed to
      The value of "RH Real Motor Angle Value" in the Data List changes in accordance with the rotation of the gears of the torque transfer module motor sub-assembly. A
      The value of "RH Real Motor Angle Value" in the Data List does not change in accordance with the rotation of the gears of the torque transfer module motor sub-assembly. Or the gears of the torque transfer module motor sub-assembly do not rotate smoothly. B

    8. Turn the engine switch off.

    9. Install the torque transfer module motor sub-assembly (RH side) and torque vectoring differential FDU (Final Drive Unit).


    A

    REPLACE TORQUE VECTORING DIFFERENTIAL FDU (FINAL DRIVE UNIT) Click here

    B

    REPLACE TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (RH SIDE) Click here

  4. CHECK FREEZE FRAME DATA (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. Read the freeze frame data of DTC C2A23.


      Chassis > TVD > Trouble Codes
      Chassis > TVD
      Tester Display
      LH Motor Current Target Value (Main CPU -> Sub2 CPU)
      Result
      Result Proceed to

      The value of "LH Motor Current Target Value (Main CPU - Sub2 CPU)" listed under "0" in the freeze frame data is 0 A.

      ("LH Motor Current Target Value (Main CPU - Sub2 CPU)" = 0 A)

      		 A
      Others B

    5. Turn the engine switch off.


    A

    REPLACE TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLY Click here

    B

  5. READ VALUE USING GTS (LH REAL MOTOR ANGLE VALUE)


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

      Click here

    2. Remove the torque transfer module motor sub-assembly (LH side).

    3. Connect the wire harness to the V7 connector of the removed torque transfer module motor sub-assembly (LH side).

    4. Connect the GTS to the DLC3.

    5. Turn the engine switch on (IG).

      Note

      Do not start the engine with the torque transfer module motor sub-assembly disconnected from the torque transfer module as the gears of the torque transfer module motor sub-assembly may start moving.

    6. Enter the following menus: Chassis / TVD / Data List / LH Real Motor Angle Value.

    7. Read "LH Real Motor Angle Value" in the Data List while rotating the gears of the torque transfer module motor sub-assembly.


      Chassis > TVD > Data List
      Tester Display
      LH Real Motor Angle Value
      Result
      Result Proceed to
      The value of "LH Real Motor Angle Value" in the Data List changes in accordance with the rotation of the gears of the torque transfer module motor sub-assembly. A
      The value of "LH Real Motor Angle Value" in the Data List does not change in accordance with the rotation of the gears of the torque transfer module motor sub-assembly. Or the gears of the torque transfer module motor sub-assembly do not rotate smoothly. B

    8. Turn the engine switch off.

    9. Install the torque transfer module motor sub-assembly (LH side) and torque vectoring differential FDU (Final Drive Unit).


    A

    REPLACE TORQUE VECTORING DIFFERENTIAL FDU (FINAL DRIVE UNIT) Click here

    B

    REPLACE TORQUE TRANSFER MODULE MOTOR SUB-ASSEMBLY (LH SIDE) Click here