Steering Column Control Module
REMOVAL
Before servicing the steering column the airbag system must be disarmed. Failure to do so may result in accidental deployment of the airbag and possible personal injury.
When an undeployed airbag module is to be removed from the vehicle, first disconnect the battery ground cable and isolate it. Allow the system capacitor to discharge for a minimum of two minutes before starting any removal.
Anytime the Steering Column Control Module (SCCM) is mounted on the steering column the steering shaft must be kept from turning or else SCCM damage will occur. Some vehicles do not have an internal lock mechanisms, so the steering column shaft must be preventing from rotating through use of a suitable tool.
- Place the front wheels in the straight ahead position and inhibit the steering column shaft from rotating.
- Extend the steering column to the fully extended position and lower it to its lowest position.NOTE:
If the SCCM is to be reused, be certain that the spring-activated clockspring lock has extended upward following steering wheel removal to lock the clockspring rotor and maintain clockspring centering until the steering wheel is installed on the steering column. Do not manually compress the clockspring lock while the SCCM is removed from the steering column as this may result in the loss of clockspring centering. If clockspring centering is not maintained, the SCCM must be replaced with a new unit before the steering wheel is installed.
- Remove the steering wheel. Refer to WHEEL, STEERING, REMOVAL AND INSTALLATION .
- Remove the steering column shroud. Refer to SHROUD, STEERING COLUMN, REMOVAL AND INSTALLATION
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1 - SCCM Bracket Screws - Remove the SCCM bracket screws and position the bracket away from the SCCM.
1 - SCCM Screw-1 2 - SCCM Screw-2 3 - SCCM Wire Harness Connectors 4 - SCCM Wire Harness Connectors - Disconnect the SCCM wire harness connectors.
- Loosen the SCCM screw-1, do not remove the screw completely.
- Loosen the SCCM screw-2, do not remove the screw completely.
- Remove the SCCM from the steering column.
INSTALLATION
Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that should be followed during installation.
- A service replacement SCCM is shipped with the clockspring centered and with a molded plastic lock installed. This lock must not be broken off until the SCCM has been installed on the steering column.
- Break off the lock tab if a new SCCM is being installed.
- After installation, a PROXI alignment is required for certain features related to the SCCM. Using the Scan Tool, go to "Guided Diagnostics" then "Restore Vehicle Configuration", follow the on-screen prompts.