Step  | Action  | Yes  | No  | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics  | |||||||||||
1  | Did you review the Exterior Lighting Systems Description and Operation and perform the necessary inspections?  | Go to Step 2  | |||||||||
2  | Verify that the license lamps are inoperative. Do the license lamps operate normally?  | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems  | Go to Step 3  | ||||||||
3  | Place the headlamp switch in the HEAD position. Is only one lamp inoperative?  | Go to Step 4  | Go to Step 5  | ||||||||
4  | Remove the inoperative lamp and inspect for the following: 
 
 
 
 Was a problem found?  | Go to Step 9  | Go to Step 5  | ||||||||
5  | Test the trailer park lamps supply voltage circuit for an open, high resistance or short to ground. Refer to Circuit Testing in Wiring Systems. Was a problem found?  | Go to Step 7  | Go to Step 6  | ||||||||
6  | Test the ground circuit for an open or high resistance. Refer to Circuit Testing in Wiring Systems. Was a problem found?  | Go to Step 8  | Go to Step 10  | ||||||||
7  | Repair the open, high resistance or short to ground in the trailer park lamps supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | Go to Step 11  | --  | ||||||||
8  | Repair the open or high resistance in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | Go to Step 11  | --  | ||||||||
9  | Replace the inoperative license lamp bulb and/or socket. Is the repair complete?  | Go to Step 11  | --  | ||||||||
10  | Replace the license lamp socket. Is the repair complete?  | Go to Step 11  | --  | ||||||||
11  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  | ||||||||