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

  • Wire harness or connector

  • Steering angle sensor

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

WIRING DIAGRAM

A01W0DLE03

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure (w/o Stop and Start System).

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 sensor 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 sensor assembly) are output together with DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate sensor (airbag sensor assembly) first, and then inspect and repair the steering angle sensor.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (BAT TERMINAL)


    1. A01W56HE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

      Remove the steering wheel and the column cover.

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

    3. Disconnect the H23 steering angle sensor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H23-5 (BAT) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

    OK

  2. CHECK HARNESS AND CONNECTOR (IG TERMINAL)


    1. A01W2DIE04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

      Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H23-4 (IG) - Body ground Engine switch on (IG) 10.5 to 16 V
      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)

    C

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

    A

  3. CHECK HARNESS AND CONNECTOR (ESS TERMINAL)


    1. A01W36TE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

      Turn the engine switch off.

    2. 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, switches or opening or closing the doors.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H23-1 (ESS) - Body ground 1 minute after engine switch off Below 1 Ω

      Tech Tips

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


    OK

    REPLACE STEERING ANGLE SENSOR Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ESS CIRCUIT)