Installation Procedure
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the following:
- The wheels on the vehicle are straight ahead.
- That J 42640 is installed or the ignition switch is in the LOCK position. See Special Tools .
- If reusing the existing SIR coil it MUST be centered. Refer to Inflatable Restraint Steering Wheel Module Coil Centering .
- Align the SIR coil (1) with the horn tower on the turn signal switch cancel cam (2).
- Slide the SIR coil (4) onto the steering shaft (2).
- Firmly seat the SIR coil retaining ring (3) into the groove on the steering shaft (2).
- Remove and discard the centering tab from the new SIR coil (4).
- Remove the J 42640 . See Special Tools .
- Install the steering column shroud. Refer to Steering Column Shroud Replacement .
- Install the steering wheel. Refer to Steering Wheel Replacement .
NOTE:
The new SIR coil assembly will be centered. Improper alignment of the SIR coil assembly may damage the unit, causing an inflatable restraint malfunction.
NOTE:
The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.
IMPORTANT:
Do not remove the centering tab from the new SIR coil until the installation is complete. If the SIR coil does not come with a centering tab, you must center the SIR coil.