Self-diagnosis and fault indication
The steering column control unit -J527- is equipped with a self-diagnosis which facilitates troubleshooting. To search for a fault, use the "Guided Fault Finding" function in the Tester".
Parts and assemblies of the steering column switch module with a mechanical ignition lock
1. Steering column
2. Shear bolt, 2 pcs.
3. Lock cylinder
4. Ignition key
5. Steering column control unit -J527-; with airbag coil spring and return ring with slip ring -F138-
Carefully! Risk of damage to return ring. The return ring with the slip ring in the removed state must not be rotated relative to each other.
6. Transport lock
7. Screw, 1.1 Nm
8. Steering column switch box: with turn signal switch -E2- and intermittent wiper switch -E22-; Equipment variant with cruise control: with cruise control switch -E45-
9. Steering column lock housing
10. Screw, 1.1 Nm
11. Ignition and starter switch -D-
12. Ignition key removal lock magnet -N376-
Components of steering column switch module with electronic steering column lock control unit -J764-
1. Steering column
2. Shear bolt, 2 pcs,
3. Immobilizer reader coil -D2-
4. Ignition key
5. Key for access and permission to start the engine -E408-
6. Steering column control unit -J527-: with coil spring for airbag module and return ring with slip ring -F138-
Carefully! Risk of damage to return ring. The return ring with the slip ring in the removed state must not be rotated relative to each other.
7. Transport lock
8. Screw, 1.1 Nm
9. Steering column switch box: with turn signal switch -E2- and intermittent wiper switch -E22-; Equipment variant with cruise control: with cruise control switch -E45-
10. Screw, 1.1 Nm
11. Lock with control unit el. Steering column lock -J764-