Step  | Action  | Yes  | No  | ||||
|---|---|---|---|---|---|---|---|
1  | Did you perform the Lighting System Diagnostic System Check?  | Go to Step 2  | |||||
2  | Inspect the PARK LP fuse. Is the fuse open?  | Go to Step 3  | Go to Step 4  | ||||
3  | Repair a short to ground in CKT 1340. Is the repair complete?  | Go to Step 9  | --  | ||||
4  | 
 Did the test lamp light?  | Go to Step 8  | Go to Step 5  | ||||
5  | Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal O and ground. Did the test lamp light?  | Go to Step 6  | Go to Step 7  | ||||
6  | Replace the headlamp/IP lamp dimmer switch. Refer to Headlamp Switch Replacement . Is the repair complete?  | Go to Step 9  | --  | ||||
7  | Repair the following conditions in CKT 1340 between the PARK LP fuse and the headlamp and the IP lamp dimmer switch harness connector terminal O: 
 
 Is the repair complete?  | Go to Step 9  | --  | ||||
8  | Repair the following conditions in CKT 9 between the headlamp and the IP lamp dimmer switch harness connector terminal R and S204: 
 
 Is the repair complete?  | Go to Step 9  | --  | ||||
9  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 2  |