Circuit/System Verification
WARNING: This page is about a different car, the 2007 Saturn Sky. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, observe the scan tool IP dimmer switch parameter while activating the switch from min to max. The voltage reading should change as the switch is cycled between the min and max settings.
- If the reading does not change, refer to Dimmer Switch Malfunction.