Circuit/System Verification

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Observe the scan tool Front Fog Lamps Switch parameter while pressing and releasing the fog lamp switch. The parameter should change between Active and Inactive.
- If the parameter does not change between the specified values, refer to Fog Lamp Switch Circuit Test .
With a test lamp connected to ground, probe each of the test points on the FOG Fuse while commanding the Fog Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF at one or both of the fuse test points when changing between commanded states.
- If the test lamp is always OFF, or remains always ON, refer to Fog Lamp PCB Relay Circuit Test .
- If the test lamp turns ON and OFF, refer to Fog Lamps Circuit Test .
With the fog lamps ON, verify the fog lamp indicator is illuminated on the IPC.
- If the indicator does not illuminate, refer to Front Fog Lamp Indicator Test .