TORQUE VECTORING DIFFERENTIAL SYSTEM, Diagnostic DTC:C2A03

DTC Code DTC Name
C2A03 Battery Voltage Malfunction

DESCRIPTION

The torque vectoring differential ECU assembly monitors the terminal voltage of the BATT terminal circuit. DTC C2A03 is stored when a voltage lower than the threshold voltage is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
C2A03 Battery Voltage Malfunction

Diagnosis Condition:


  • IG power source voltage is 10 V or more.

Abnormal condition:


  • The BATT terminal circuit is open or shorted to ground. (BATT terminal voltage is lower than 3.5 V)

Malfunction Time:


  • 3 seconds or more

Trip logic:


  • 1 trip detection logic

  • Torque vectoring differential ECU assembly

  • Wire harness or connector

  • Master Warning Light: Does not come on

  • Multi-information Display Error Message: Does not come on
DTC Detection Conditions
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition IG power source voltage is 10 V or more. ○ ○
Malfunction Status The BATT terminal circuit is open. (BATT terminal voltage is lower than 3.5 V) ○ -
The BATT terminal circuit is shorted to ground. (BATT terminal voltage is lower than 3.5 V) - ○
Detection Time 3 seconds or more 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.

WIRING DIAGRAM

B002EXJE03

CAUTION / NOTICE / HINT

Tech Tips


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

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    1. Disconnect the torque vectoring differential ECU assembly connector.

    2. B002DHKC03
      *a

      Front view of wire harness connector

      (to Torque Vectoring Differential ECU Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      U43-16 (BATT) - Body ground Always 10 to 14 V

    3. Reconnect the torque vectoring differential ECU assembly connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TORQUE VECTORING DIFFERENTIAL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE POWER SOURCE CIRCUIT