Lost Communication with Vehicle Dynamics Control Module - Cruise Control System

CRUISE CONTROL: CRUISE CONTROL SYSTEM: U0122: Lost Communication with Vehicle Dynamics Control Module
U0122 - Lost Communication with Vehicle Dynamics Control Module

DESCRIPTION

The vehicle speed sensor sends the vehicle speed signal to the brake booster with master cylinder (skid control ECU), and then it is sent to the power management control ECU.





INSPECTION PROCEDURE

Refer to CAN Communication System How to Proceed With Troubleshooting.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Connect the Techstream to the DLC3.

(b) Select "Bus Check" from the "System Select".

(c) Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

Result:





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting