DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B14/24, C1B24/34

DTC Code DTC Name
C1B14/24 Stroke Sensor Circuit
C1B24/34 Stroke Sensor(Actuator Angle Indeterminate)

DESCRIPTION

When the DRS ECU (rear steering control ECU) detects a problem with the stroke sensor circuit, DTC C1B14/24 and C1B24/34 are stored.

DTC Code DTC Detection Condition Trouble Area
C1B14/24

All conditions are met for approximately 0.2 seconds or more:


  • The engine switch is on (IG).

  • The power source voltage is 9 V or higher.

  • A malfunction in the stroke sensor is detected.

  • Rear steering link assembly

  • DRS ECU (rear steering control ECU)
C1B24/34

All conditions are met:


  • Immediately after turning the engine switch on (IG).

  • 0.5 seconds have elapsed with the power source voltage at 10 V or higher and control has not started.

  • A malfunction in the stroke sensor is detected.

  • Rear steering link assembly

  • DRS ECU (rear steering control ECU)

WIRING DIAGRAM

A01FHMEE04

INSPECTION PROCEDURE

Note


  • When replacing the DRS ECU (rear steering control ECU), perform neutral position memorization and motor rotation angle sensor calibration Click here.

  • If the rear steering link assembly or the rear suspension is removed and installed, replaced, or adjusted, after performing actuator calibration value initialization, perform neutral position memorization and motor rotation angle sensor calibration Click here.

  • Since DTC C15C9/76 is stored in the VGRS ECU (front steering control ECU), after performing repairs on the dynamic rear steering system, clear the DTCs for the VGRS system.

PROCEDURE


  1. CHECK DTC


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1B14/24 or C1B24/34 is output as a past DTC A
      DTC C1B14/24 or C1B24/34 is output as a current DTC B

    B

    INSPECT REAR STEERING LINK ASSEMBLY (STROKE SENSOR) Click here

    A

  2. PERFORM ACTUATOR FORCED ACTIVATION


    1. Perform actuator forced activation Click here.


    NEXT

  3. RECONFIRM DTC


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1B14/24 or C1B24/34 is output as a current DTC A
      DTC C1B14/24 or C1B24/34 is output as a past DTC B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  4. INSPECT REAR STEERING LINK ASSEMBLY (STROKE SENSOR)


    1. Turn the engine switch off.

    2. Disconnect the rear steering link assembly connector from the DRS ECU (rear steering control ECU).

    3. A01FHCEE04
      Text in Illustration
      *a

      Front view of rear steering link assembly connector

      (to DRS ECU [Rear Steering Control ECU])

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z12-4 (ARV) - z12-5 (ARG) Always 5 to 50 Ω
      z12-12 (AS1) - z12-5 (ARG) Always 4 to 5 kΩ
      z12-13 (AS2) - z12-5 (ARG) Always 12 to 14.5 kΩ
      z12-4 (ARV) - z12-12 (AS1) Always 4 to 5 kΩ
      z12-4 (ARV) - z12-13 (AS2) Always 12 to 14.5 kΩ
      z12-12 (AS1) - z12-13 (AS2) Always 16 to 19 kΩ
      z12-4 (ARV) - Body ground Always 100 kΩ or higher
      z12-5 (ARG) - Body ground Always 100 kΩ or higher
      z12-12 (AS1) - Body ground Always 100 kΩ or higher
      z12-13 (AS2) - Body ground Always 100 kΩ or higher

    NG

    REPLACE REAR STEERING LINK ASSEMBLY Click here

    OK

    REPLACE REAR STEERING CONTROL ECU Click here