VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15B4/71

DTC Code DTC Name
C15B4/71 ECU Malfunction(Actuator Angle Record)

DESCRIPTION

If the VGRS ECU (steering control ECU) detects an internal malfunction, it turns the master warning light on, and stores DTC C15B4/71.

DTC No. DTC Detection Condition Trouble Area
C15B4/71 The memorized actuator angle value cannot be confirmed immediately after the engine switch is turned on (IG). VGRS ECU (steering control ECU)

CAUTION / NOTICE / HINT

Note


  • When replacing the VGRS ECU (steering control ECU), perform actuator angle neutral point calibration and initialization after replacement Click here.

  • When DTC C15B4/71 is output, confirm the following:


    1. Whether there was any trouble starting the engine during the trip before DTC C15B4/71 was stored.

    2. Whether the master warning light illuminated while the vehicle was being driven or immediately after the engine was started.

PROCEDURE


  1. PERFORM VGRS SYSTEM CALIBRATION


    1. Perform VGRS system calibration Click here.

      Result
      Result Proceed to
      Actuator angle neutral point calibration can be performed A
      Actuator angle neutral point calibration cannot be performed (for LHD) B
      Actuator angle neutral point calibration cannot be performed (for RHD) C

    A

    END

    B

    REPLACE VGRS ECU (STEERING CONTROL ECU) Click here

    C

    REPLACE VGRS ECU (STEERING CONTROL ECU) Click here