Multifunction Steering Wheel through 05/2010

General Information

The multifunction steering wheel makes it possible to control some functions of the communications system and the cruise control from the steering wheel.

Troubleshooting

The control module in steering wheel communicates with steering column electronic systems control module. Data commands are processed there once more for further communication.

The multifunction steering wheel is equipped with OBD.

Use the Vehicle Diagnostic Tester under "Guided Fault Finding".

The multifunction steering wheel is made up of the following components:

• The control unit in the steering wheel with two button arrays with integrated electronics, left and right on the steering wheel.
• Multifunction steering wheel control module

Note

• Familiarity with the function and operation of the digital sound system is needed if there are customer concerns.
• Refer to the Owner's Manual.

Control Module in Steering Wheel, Removing and Installing

Removal and installation is identical for the right and left button block.

Removing

• Remove steering wheel airbag.
• Remove the driver airbag unit
• Disconnect connector -1-.
• Remove the screw -arrow-.

• Remove button block.

Installing

Install in reverse order of removal.

Steering Column Electronic Systems Control Module, Removing and Installing

Removing

• Remove steering wheel airbag.
• Remove the driver airbag unit.
• Disconnect both harness connectors at control module.
• Using a suitable screwdriver, carefully pry out the control module -arrow-.

Installing

Install in reverse order of removal.

• Code the control module for steering column electronics, see adapting components, multi-function steering wheel.

Multifunction Steering Wheel, Adapting Components

Special tools and workshop equipment required

• Vehicle Diagnostic Tester
• Vehicle Diagnosis System - Updated Cable - 3m - VAS5051/5a- or Vehicle Diagnosis System - Diagnostic Cable -VAS5051/6a- or Vehicle Diagnostic Tester - Diagnostic Cable - 5m -VAS5052/3-

Components, Multi-Function Steering Wheel, Adapting

Select "Guided Functions" or "Guided Fault Finding" on the Vehicle Diagnostic Tester.

After all control modules have been checked:

• Press the "Go to" button.
• Select "Functions/Component selection".
• Select "Body".
• Select "Electrical Equipment".
• Select "01-OBD-capable system".
• Select "Steering Column Electronics".
• Select "Code Control Unit Function".