Brake System Control Module Malfunction - Variable Gear Ratio Steering System

STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: C15C3/75: Brake System Control Module Malfunction
C15C3/75 - Brake System Control Module Malfunction

DESCRIPTION

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

If the steering control ECU detects this error signal, it will turn the master warning light on, store this DTC, and stop VGRS operation.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check for DTCs in the skid control ECU Reading and Clearing Diagnostic Trouble Codes.

Result:





NG -- REPAIR CIRCUIT INDICATED BY DTC OUTPUT
OK -- Continue to next step.

2. CHECK DTC (CAN COMMUNICATION SYSTEM)

(a) Check for DTCs in the CAN communication system Diagnosis System.

Result:





B -- REPAIR CIRCUIT INDICATED BY DTC OUTPUT

A -- REPLACE STEERING CONTROL ECU Removal