General information
- 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 → Service mode, activating/deactivating .
If the Battery A is reconnected, follow the procedure for disconnecting and connecting the Battery A → - 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL . Deactivate Telephone/Telematics Control Module J526 service mode → Service mode, activating/deactivating .
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 → - 97 WIRING .