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
C1432 Steering Angle Sensor Power Source Voltage Malfunction Steering angle sensor power supply malfunction signal is received from steering angle sensor.

  • Backup boost converter circuit*1

  • ECU-B NO. 1 fuse

  • IG1 NO. 3 fuse*2

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

  • Wire harness or connector

WIRING DIAGRAM

B00286HE15

CAUTION / NOTICE / HINT

Note


  • Do not remove the steering angle sensor from the spiral with sensor cable sub-assembly.

  • 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 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 (spiral with sensor cable sub-assembly) 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 (spiral with sensor cable sub-assembly), inspect and repair the speed sensor and yaw rate sensor (airbag sensor assembly) first, and then inspect and repair the steering angle sensor (spiral with sensor cable sub-assembly).

PROCEDURE


  1. CHECK TERMINAL VOLTAGE (BAT TERMINAL)


    1. Turn the ignition switch off.

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

      Click here

    3. B002770C50
      *a

      Front view of wire harness connector

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

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

    4. Disconnect the G21 steering angle sensor (spiral with sensor cable sub-assembly) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G21-5 (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 ignition switch to ON.

    2. B002770C51
      *a

      Front view of wire harness connector

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

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G21-4 (IG) - Body ground Ignition switch ON 10.5 to 16 V*1
      11 to 14 V*2

      • *1: w/ Stop and Start System

      • *2: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG (w/ Stop and Start System)
      NG (w/o Stop and Start System)

    NG (w/ Stop and Start System)

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

    NG (w/o Stop and Start System)

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)

    OK

  3. CHECK HARNESS AND CONNECTOR (ESS TERMINAL)


    1. Turn the ignition switch off.

    2. B002770C52
      *a

      Front view of wire harness connector

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G21-1 (ESS) - Body ground Always 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 SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ESS CIRCUIT)