VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1432

DTC Code DTC Name
C1432 Steering Angle Sensor Power Source Voltage

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
C1432 Steering Angle Sensor Power Source Voltage 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

WIRING DIAGRAM

Refer to DTC C1434.

Click here

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 and acceleration sensor is malfunctioning, 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 and acceleration sensor are output together with DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate and acceleration sensor first, and then inspect and repair the steering angle sensor.

PROCEDURE


  1. CHECK VEHICLE


    1. Check the VGRS system.

      Result
      Result Proceed to
      w/o VGRS System A
      w/ VGRS System B

    B

    CHECK HARNESS AND CONNECTOR (BAT TERMINAL) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (BAT TERMINAL)


    1. B0076DAC45
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

      Remove the steering wheel and the column cover lower.

      Click here

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

    3. Disconnect the O28 steering angle sensor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      O28-8 (BAT) - Body ground Always 11 to 14 V
      Result
      Result Proceed to
      OK (w/ Stop and Start System) A
      OK (w/o Stop and Start System) B
      NG C

    B

    CHECK HARNESS AND CONNECTOR (IG1 TERMINAL) Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BAT CIRCUIT)

    A

  3. CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)


    1. B0076DAC46
      *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
      O28-4 (IG1) - Body ground Engine switch on (IG) 10.5 to 16 V
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  4. CHECK HARNESS AND CONNECTOR (ESS TERMINAL)


    1. B0076DAC47
      *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 or switches, or opening or closing the doors.

      Standard Resistance
      Tester Connection Condition Specified Condition
      O28-1 (ESS) - Body ground 1 minute after engine switch off Below 1 Ω
      Result
      Proceed to
      OK
      NG

      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)

  5. CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)


    1. B0076DAC46
      *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
      O28-4 (IG1) - Body ground Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 4 Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

  6. CHECK HARNESS AND CONNECTOR (BAT TERMINAL)


    1. B0076L0C22
      *a

      Front view of wire harness connector

      (to Steering Angle Sensor)

      Remove the steering wheel and the column cover lower.

      Click here

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

    3. Disconnect the O29 steering angle sensor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      O29-5 (BAT) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BAT CIRCUIT)

    OK

  7. CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)


    1. B0076L0C23
      *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
      O29-4 (IG1) - Body ground Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

    OK

  8. CHECK HARNESS AND CONNECTOR (ESS TERMINAL)


    1. B0076L0C24
      *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
      O29-1 (ESS) - Body ground 1 minute after engine switch off Below 1 Ω
      Result
      Proceed to
      OK
      NG

      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)