Combination Switch: Description and Operation

Steering Column Switch

CAUTION!
When disconnecting and connecting the battery, always perform the work procedure as described in the repair information --> [ Battery, One-Battery Layout, Disconnecting and Connecting ] Battery, One-Battery Layout, Disconnecting and Connecting. Not adhering to sequence will result in the deactivation of Main Battery Switch -E74- and subsequent damage to electrical system components.

• After installing a new Steering Column Electronic Systems Control Module (J527), it must be coded --> [ Steering Column Electronic Systems Control Module, Coding ] Programming and Relearning.

• If malfunctions occur at steering column switch, output Diagnostic Test Mode (DTM) of Steering Column Electronic Systems Control Module (J527) must be performed --> [ Steering Column Electronic Systems Control Module, Output Diagnostic
Test Mode ] Initial Inspection and Diagnostic Overview.

• Additional information:

--> Owner's Manual

297The Touareg

298The Touareg Electrical System

DTC recognition and display:

Steering Column Electronic Systems Control Module (J527) is equipped with On Board Diagnostics (OBD) which assists troubleshooting.

For troubleshooting, use Vehicle Diagnostic, Testing and Information System (VAS 5051A) in operating mode " Guided Fault Finding".