Variable Gear Ratio Steering System

VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: U0100/56: Lost Communication with ECM / PCM "A"

DTC U0100/56 - Lost Communication with ECM / PCM "A"

DTC U0122/56 - Lost Communication with Vehicle Dynamics Control Module

DTC U0126/56 - Lost Communication with Steering Angle Sensor Module

DESCRIPTION

The steering control ECU receives signals from the skid control ECU, ECM and steering angle sensor via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Using the Techstream, check if the CAN communication system is functioning normally Diagnosis System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)
A -- USE SIMULATION METHOD TO CHECK