VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1432

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

DESCRIPTION

The skid control ECU (brake actuator assembly) outputs this DTC when it receives a sensor power source malfunction signal from the steering angle sensor.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C1432 Steering Angle Sensor Power Source Voltage Malfunction Steering angle sensor power supply malfunction signal is received from steering angle sensor.

  • Steering angle sensor

  • Wire harness or connector

  • Backup boost converter circuit (w/ stop and start system)

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WIRING DIAGRAM

B006QRYE06

CAUTION / NOTICE / HINT

Note

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

Tech Tips


  • When U0073, U0124 and/or U0126 is output together with C1432, inspect and repair the trouble areas indicated by U0073, U0124 and/or U0126 first.

    Click here

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

PROCEDURE


  1. CHECK TERMINAL VOLTAGE (BAT TERMINAL)


    1. Remove the steering wheel and the column cover lower.

      Click here

    2. B006M7CC37
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

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

    3. Disconnect the G12 steering angle sensor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G12-5 (BAT) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BAT CIRCUIT)

    OK

  2. CHECK TERMINAL VOLTAGE (IG TERMINAL)


    1. Turn the engine switch on (IG).

    2. B006M7CC41
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G12-4 (IG) - Body ground Engine switch on (IG) 10.5 to 16 V
      Result
      Result Proceed to
      OK A
      NG (w/ Stop and Start System) B
      NG (w/o Stop and Start System) C

    B

    INSPECT STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)

    A

  3. CHECK HARNESS AND CONNECTOR (ESS TERMINAL)


    1. Turn the engine switch off.

    2. B006M7CC39
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

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

      Note

      Before measuring the resistance of the steering angle sensor, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key or switches, or opening or closing the doors.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G12-1 (ESS) - Body ground 1 minute after turning engine switch off Below 1 Ω

      Tech Tips

      If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEERING ANGLE SENSOR Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ESS CIRCUIT)