Circuit/System Verification
WARNING: This page is about a different car, the 2008 Cadillac CTS. 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 12 volts.
- If less than the specified range, refer to I/P Dimmer Switch Malfunction .
- If within the specified range, refer to I/P Dimmer Switch Malfunction .