Circuit/System Verification
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, observe the scan tool Dimming Control Reference voltage. The reading should display 2.5 volts or greater.
- If less than the specified range, refer to I/P Dimming Control Malfunction.
- If within the specified range, refer to I/P Dimmer Switch Malfunction.