Step  | Action  | Yes  | No  | 
|---|---|---|---|
1  | Did you perform the Lighting System Diagnostic System Check?  | Go to Step 2  | Go to Diagnostic System Check - Lighting Systems in Lighting Systems.  | 
2  | 
 Are the fog lamps on and the fog lamp indicator on?  | Go to Testing for Intermittent Conditions and Poor Connections  | Go to Step 3  | 
3  | Using a test lamp connected to a known good ground, backprobe the fog lamp switch B+ feed circuit. Does the test lamp turn on?  | Go to Step 5  | Go to Step 4  | 
4  | Repair a poor connection or an open in the fog lamp switch B+ feed circuit. Is the repair complete?  | Go to Step 6  | --  | 
5  | Replace the fog lamp switch. Refer to Fog Lamp Switch Replacement . Is the repair complete?  | Go to Step 6  | --  | 
6  | Operate the system in order to verify the repair. Is the repair complete?  | Go to Step 2  |