Step  | Action  | Value(s)  | Yes  | No  | 
|---|---|---|---|---|
1  | Did you perform the Lighting Systems Diagnostic System Check?  | --  | Go to Step 2  | |
2  | Verify that the LR tail lamp is inoperative. Do the tail 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 PARK position and connect a test lamp from ground to terminal B of the inoperative bulb socket. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate?  | --  | Go to Step 5  | Go to Step 4  | 
4  | Locate and repair open, high resistance, or short to ground in CKT 2509 (BRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Step 8  | --  | 
5  | Connect the test lamp between terminal B and terminal G of the inoperative bulb socket. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate?  | --  | Go to Step 7  | Go to Step 6  | 
6  | Locate and repair the open or high resistance in the ground CKT 1350 (BLK) or 1750 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?  | --  | Go to Step 8  | Go to Step 7  | 
7  | Replace the inoperative bulb. Is the repair complete?  | --  | Go to Step 8  | --  | 
8  | Operate the system in order to verify the repair. Did you correct the condition?  | --  | System OK  | Go to Step 3  |