VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1432

DTC Code DTC Name
C1432 Steering Angle Sensor Power Source Voltage Malfunction

DESCRIPTION

Steering angle sensor (spiral with sensor cable sub-assembly) signals are sent to the skid control ECU (master cylinder solenoid) via the CAN communication system. When there is a malfunction in the CAN communication system, it is detected by the steering angle sensor zero point malfunction diagnostic function.

DTC Code DTC Detection Condition Trouble Area
C1432 A steering angle sensor power supply malfunction signal is received from the steering angle sensor.

  • J/B-B NO. 1 fuse

  • ECU-IG NO.1 fuse

  • Steering angle sensor (Spiral with sensor cable sub-assembly) power supply

  • Steering angle sensor (Spiral with sensor cable sub-assembly)

  • VGRS ECU (Steering control ECU)

WIRING DIAGRAM

A01WQU0E11

CAUTION / NOTICE / HINT

Note


  • When replacing the steering angle sensor (spiral with sensor cable sub-assembly), confirm that the replacement part is of the correct specification.

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

Tech Tips

When the speed sensor or the yaw rate and acceleration sensor (airbag sensor assembly) has trouble, DTCs for the steering angle sensor (spiral with sensor cable sub-assembly) may be stored even when the steering angle sensor is normal. When DTCs for the speed sensor or yaw rate and acceleration sensor (airbag sensor assembly) are output together with DTCs for the steering angle sensor (spiral with sensor cable sub-assembly), inspect and repair the speed sensor and yaw rate and acceleration sensor (airbag sensor assembly) first, and then inspect and repair the steering angle sensor (spiral with sensor cable sub-assembly).

PROCEDURE


  1. CHECK DTC (CAN COMMUNICATION SYSTEM)


    1. for LHD:Check for DTCs Click here.

    2. for RHD:Check for DTCs Click here.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (IG/ESS TERMINAL)


    1. Turn the engine switch off.

    2. Make sure that there is no looseness in the locking part and connecting part of the connectors.

    3. A01WU86E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor [Spiral with Sensor Cable Sub-assembly])

      Disconnect the steering angle sensor (spiral with sensor cable sub-assembly) connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E131-4 (IG) - Body ground engine switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E131-1 (ESS) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (BAT TERMINAL)


    1. Turn the engine switch off.

    2. A01WPAYE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor [Spiral with Sensor Cable Sub-assembly])

      Disconnect the steering angle sensor (spiral with sensor cable sub-assembly) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E131-5 (BAT) - Body ground Always 11 to 14 V
      Result
      Result Proceed to
      NG A
      OK B

    B

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here

    A

  4. CHECK HARNESS AND CONNECTOR (+BI TERMINAL)


    1. Turn the engine switch off.

    2. A01WQDPE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to VGRS ECU [Steering Control ECU])

      Disconnect the VGRS ECU (steering control ECU) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E129-7 (+BI) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - STEERING CONTROL ECU)


    1. Turn the engine switch off.

    2. Disconnect the E131 steering angle sensor (spiral with sensor cable sub-assembly) connector.

    3. Disconnect the E129 VGRS ECU (steering control ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E131-5 (BAT) - E129-1 (+BO) Always Below 1 Ω
      E131-5 (BAT) or E129-1 (+BO) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE STEERING CONTROL ECU Click here

    OK

    REPLACE STEERING CONTROL ECU Click here