Communication

Steering Column Electronic Systems Control Module

Steering Column Electronic Systems Control Module, Connector Assignment

General Information

CAUTION:
- Disconnect battery ground wire before working on electrical system.
- On vehicles with Telematics, activate Telephone/Telematics Control Module J526 service mode before disconnecting Battery A.

If the Battery A is reconnected, follow the procedure for disconnecting and connecting the Battery A. Deactivate Telephone/Telematics Control Module J526 service mode.

Description
The Steering Column Electronic Systems Control Module J527 is a part of the "steering column switch module". The "steering column switch module" consists of:
- Left and right steering column switch
- airbag spiral spring
- Steering Angle Sensor G85
- Ignition/Starter Switch D
- Steering Column Electronic Systems Control Module J527

The Steering Column Electronic Systems Control Module J527 exchanges data between vehicle control modules (e.g. Vehicle Electrical System Control Module J519) and steering column modules (e.g. steering column switch) and steering wheel modules (e.g. airbag).

In addition, multi-function steering wheel button signals are process and relayed via CAN BUS.

Diagnosis is performed using "Guided Fault-Finding".

Repair to CAN bus lines.