Owners of some 2003-06 C/Kvehicles may experience a noise (rubbing, scraping, clicking, etc.) coming from the steering column area while turning the steering wheel.
Improper installation of the Inflatable Restraint Steering Wheel Module Coil could cause a noise concern. To avoid unnecessary replacement of the coil, use the following checklist for proper coil installation before replacing a suspect coil.Â
1. Remove the steering column trim (SI document 1762533)
2. Disable the SIR system and remove the SIR module from the steering wheel (SI documents 1425970 and 332742). Check that SIR and/or redundant control wiring has not been tucked behind the steering wheel (fig. 19).
TIP:Â The process of removing the SIR module may be enough to free up wires that have been tucked behind the steering wheel.
Install the SIR module and re-check for noise.
3. If SIR and redundant control wiring is routed properly and the noise is still present, remove the steering wheel (SI document 822725).
4. Check that the coil retaining ring is properly seated (fig. 20). If the retaining ring is not properly seated, correct the condition and re-check for noise.
5. If the retaining ring is properly seated and the noise is still present, check that the coil wiring harness is properly routed along the steering column (fig. 21). Any excess force or tension on the outer housing of the coil due to improper routing could cause noise. If wiring is improperly routed, correct the concern and re-check for noise.
6. If the retaining ring and all wiring is installed correctly and noise is still present, perform the coil centering procedure (SI document 822781). Re-install the coil and re-check for noise.
TIP:Â A coil that is off center by as little as 1 or 2 revolutions could be the source of the noise.
7. If the noise has not been eliminated by following the steps above, only then should the coil be replaced.
- Thanks to Kevin Larson
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