VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15CA/79

DTC Code DTC Name
C15CA/79 EPS System Malfunction

DESCRIPTION

When the VGRS ECU (front steering control ECU) detects a problem with the power steering ECU assembly via CAN communication, a DTC is stored.

DTC Code DTC Detection Condition Trouble Area
C15CA/79

Both conditions are met for approximately 3 seconds or more:


  • The engine switch is on (IG).

  • Information regarding a power steering ECU assembly internal malfunction is received via CAN communication.

 Power steering ECU assembly

INSPECTION PROCEDURE

Note

If the power steering ECU assembly is replaced a new one, perform assist map writing, clear the motor rotation angle sensor calibration value, initialize the motor rotation angle sensor value and calibrate the torque sensor zero point Click here.

PROCEDURE


  1. CHECK DTC (POWER STEERING SYSTEM)


    1. Check for DTCs in the power steering system Click here.


    NEXT

    GO TO POWER STEERING SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here