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Steering Column Electronic Systems Control Module (J527)







Steering Column Electronic Systems Control Module (J527)

The airbag spiral spring/return spring with slip ring (F138) and the steering angle sensor (G85) are integrated in the steering column electronic systems control module.

- If the control module was replaced, select the "Replace" function for the respective control module in "Guided Fault Finding" or "Guided Functions" using the Vehicle Diagnostic Tester.

Removing

Steering must be in center position (wheels in straight ahead position) when removing and installing coil connector with slip ring.

- Adjust steering wheel downward and to rear as far as possible, use entire adjustment range of steering column adjustment for this.

- Remove the driver airbag.

- Remove the steering wheel.

- Remove the steering column trim.

- Remove bolt - 1 -.






- Release the retaining hooks - arrows - carefully and remove the airbag spiral spring/return spring with slip ring (F138) - item 2 - from the steering column switch module - 3 -.

- Release the electrical connectors on the airbag spiral spring/return spring with slip ring - item 3 - by positioning the screwdriver at the retaining hooks - 2 - and - 4 - as illustrated and carefully releasing the connectors - 1 - and - 5 - in the - direction of arrow A -.






- Remove the airbag spiral spring/return spring with slip ring on the steering column switch module.

Installing

Install in reverse order of removal. Note the following:

- Make sure all retaining hooks and connectors are engaged securely.

- Install the steering column trim.

- Install the steering wheel.

- Install the driver airbag.

- The steering angle sensor must be adapted in "Guided Fault Finding" or "Guided Functions" after replacing the airbag spiral spring/return spring with slip ring using the Vehicle Diagnostic Tester.