DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B14, C1B24

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

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C1B14 Stroke Sensor Circuit

All conditions are met:


  • The power switch is on (IG).

  • The power source voltage is 9 V or higher.

  • A malfunction in the stroke sensor is detected for approximately 0.2 seconds or more.

  • Rear steering link assembly

  • DRS ECU (rear steering control ECU)

 Comes on Power switch on (IG) again
C1B24 Stroke Sensor(Actuator Angle Indeterminate)

All conditions are met:


  • 0.5 seconds or more elapse after turning the power switch on (IG).

  • The power source voltage is 10 V or higher.

  • A malfunction in the stroke sensor is detected.

  • Rear steering link assembly

  • DRS ECU (rear steering control ECU)

 Comes on Power switch on (IG) again

WIRING DIAGRAM

B004TAFE02

CAUTION / NOTICE / HINT

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

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Chassis > DRS > Trouble Codes
      Result
      Result Proceed to
      DTC C1B14 or C1B24 is output as a past DTC A
      DTC C1B14 or C1B24 is output as a current DTC B

    B

    GO TO STEP 4 Click here

    A

  2. PERFORM ACTUATOR FORCED ACTIVATION


    1. Perform actuator forced activation.

      Click here


      Chassis > DRS > Utility
      Tester Display
      Activate Rear Steering Motor
      Result
      Proceed to
      NEXT

    NEXT

  3. RECONFIRM DTC


    1. Check for DTCs.

      Click here


      Chassis > DRS > Trouble Codes
      Result
      Result Proceed to
      DTC C1B14 or C1B24 is output as a current DTC A
      DTC C1B14 or C1B24 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 power switch off.

    2. Disconnect the z20 rear steering link assembly connector from the DRS ECU (rear steering control ECU).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z20-4 (ARV) - z20-5 (ARG) Always 5 to 50 Ω
      z20-12 (AS1) - z20-5 (ARG) Always 4 to 5 kΩ
      z20-13 (AS2) - z20-5 (ARG) Always 12 to 14.5 kΩ
      z20-4 (ARV) - z20-12 (AS1) Always 4 to 5 kΩ
      z20-4 (ARV) - z20-13 (AS2) Always 12 to 14.5 kΩ
      z20-12 (AS1) - z20-13 (AS2) Always 16 to 19 kΩ
      z20-4 (ARV) - Body ground Always 100 kΩ or higher
      z20-5 (ARG) - Body ground Always 100 kΩ or higher
      z20-12 (AS1) - Body ground Always 100 kΩ or higher
      z20-13 (AS2) - Body ground Always 100 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE DRS ECU (REAR STEERING CONTROL ECU) Click here

    NG

    REPLACE REAR STEERING LINK ASSEMBLY Click here