VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15C3/75, C15CB/84

DTC Code DTC Name
C15C3/75 Brake System Control Module
C15CB/84 VSC System Malfunction

DESCRIPTION

The VGRS ECU (front steering control ECU) detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication.

If the VGRS ECU (front steering control ECU) detects this error signal, it turns the master warning light on, stores this DTC and stops VGRS operation.

DTC Code DTC Detection Condition Trouble Area
C15C3/75

All conditions are met:


  • The power switch is on (IG).

  • 3 seconds or more elapse with the power source voltage at 10 V or higher.

  • Information regarding a vehicle speed signal malfunction is received for approximately 3 seconds or more from the skid control ECU via CAN communication or there is a VDIM monitoring malfunction.

 Skid control ECU assembly
C15CB/84

All conditions are met for approximately 3 seconds or more:


  • The power switch is on (IG).

  • 3 seconds or more elapse with the power source voltage at 10 V or higher.

  • Information regarding a skid control ECU internal malfunction is received via CAN communication.

 Skid control ECU assembly

CAUTION / NOTICE / HINT

Note


  • When replacing the skid control ECU assembly, perform initialization and calibration of the linear solenoid valve Click here.

  • Since DTC C1B09/19 is stored in the DRS ECU (rear steering control ECU), after performing repairs on the VGRS system, clear the DTCs for the dynamic rear steering system.

PROCEDURE


  1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs in the electronically controlled brake system Click here.


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    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here