Circuit/System Testing
WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Refer to SIR Caution
.
Disable the inflatable restraint steering wheel module when performing this diagnostic. Refer to SIR Disabling and Enabling .
- Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
- Disconnect the harness connector at the cruise control switch assembly.
- Cruise switch ON, test for less than infinite resistance between the steering wheel supply voltage terminal 1 and the cruise control indicator dimming signal terminal 9 on the cruise control switch.
- If the resistance measured is infinite, replace the cruise control switch assembly.
- Test the cruise control dimming indicator signal circuit for an open/high resistance between the BCM and the cruise control switch assembly.
- If the cruise control dimming indicator signal circuit tests normal, replace the BCM.