Operation CHARM: Car repair manuals for everyone.

Steering Column Switch Module and Electronic Ignition Lock Overview






Steering Column Switch Module and Electronic Ignition Lock Overview

• The steering column switch module consists of the coil connector with slip ring, steering angle sensor (G85) , steering column switch (turn signal indicator switch, wiper switch, cruise control switch) and steering column electronic systems control module.

• Fault finding is done in "Guided Fault Finding". Refer to the vehicle diagnosis, testing and information system VAS 5051.






1 Screw

• 0.5 Nm

2 Transport Protection

3 Steering Column Electronic Systems Control Module (J527)

• With airbag spiral spring/return spring with slip ring (F138) , steering angle sensor.

• Removing and installing, refer to => [ Steering Column Electronic Systems Control Module (J527) ] Service and Repair.


Risk of damaging the coil connector.

• Coil connector with slip ring is not to be turned following removal.

• Connector assignment of the steering column electronic systems control module. Refer to => [ Steering Column Electronic Systems Control Module Connector Assignment ] Service and Repair.

4 Turn Signal, Cruise Control, Windshield Wiper and Washer Intermittent Switch

• With turn signal switch (E2) , windshield wiper/washer switch (E22).

• On vehicles with cruise control with the cruise control switch (E45).

• Removing and installing, refer to => [ Turn Signal, Cruise Control, Windshield Wiper and Washer Intermittent Switch ] Service and Repair.

5 Clamping Ring

6 Screw

• 4 Nm

7 Steering Column

8 Access/Start Authorization Switch (E415)

• Removing and installing, refer to => [ Access/Start Authorization Switch ] Service and Repair.

9 Ignition Key

Access/Start Authorization Switch Bolt Tightening Specification






- Tighten the bolt - 2 - for the access/start authorization switch - item 1 - to 3 Nm.