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TORQUE VECTORING DIFFERENTIAL SYSTEM, Diagnostic DTC:C2A04, C2A05

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DTC Code DTC Name
C2A04 RH R/D Converter Circuit
C2A05 LH R/D Converter Circuit
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DESCRIPTION

The TVD motor contains a TVD motor resolver sensor used to determine the position of the magnetic poles. It is necessary to know the position of the magnetic poles in order to precisely control the TVD motor.

The TVD motor resolver contains a stator equipped with 2 detection coils (S and C) and an excitation coil. When the elliptical shaped rotor turns, the gap between the stator and elliptical shaped rotor changes.

A fixed frequency AC current is sent though the excitation coil. The detection coils (S and C) output an AC waveform with a magnitude relative to the angle of the sensor rotor.

The TVD motor resolver detects the absolute position of the elliptical shaped rotor using the phase and amplitude of the waveform of the detection coils (S and C). Using the information provided by the TVD motor resolver, the ECU calculates the angle and rotational speed of the TVD motor.

The torque vectoring differential ECU assembly monitors the output signal of the TVD motor resolver to detect any malfunctions.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
C2A04 RH R/D Converter Circuit

Diagnosis Condition:


  • IG power source voltage is 10 V and more or PIG power source voltage is 10 V or more.

Abnormal condition:


  • Abnormal TVD motor resolver (RH side) control signal

Malfunction Time:


  • 0.06 seconds or more

Trip logic:


  • 1 trip detection logic

 Torque vectoring differential ECU assembly

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
C2A05 LH R/D Converter Circuit

Diagnosis Condition:


  • IG power source voltage is 10 V and more or PIG power source voltage is 10 V or more.

Abnormal condition:


  • Abnormal TVD motor resolver (LH side) control signal

Malfunction Time:


  • 0.06 seconds or more

Trip logic:


  • 1 trip detection logic

 Torque vectoring differential ECU assembly

  • Master Warning Light: Comes on

  • Multi-information Display Error Message: Comes on
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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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PROCEDURE


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    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 C2A04 or DTC C2A05 only is output. A
      DTCs other than DTC C2A04 and DTC C2A05 are output. B
      DTCs are not output. C

      1. Turn the engine switch off.