Circuit/System Verification
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, Headlamps OFF, command the Low Beam/DRLs ON and OFF with a scan tool. The low beam headlamps should turn ON and OFF when changing between the commanded states.
- If the daytime running lights do not change between the commanded states, refer to Daytime Running Lamps Malfunction .
- Observe the scan tool DRL Status parameter while supplying sufficient light to simulate daylight conditions to the ambient light sensor. After 30 seconds, the parameter should be Active.
- If not the specified value, refer to Ambient Light Sensor Malfunction .