Step  | Action  | Yes  | No  | 
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List  | |||
1  | Did you perform the Diagnostic System Check - Vehicle?  | Go to Step 2  | |
2  | Verify that the park, license, and tail lamps are inoperative. Do the park, license, and tail lamps operate normally?  | Go to Testing for Intermittent Conditions and Poor Connections  | Go to Step 3  | 
3  | Are all park, license, and tail lamps inoperative?  | Go to Step 6  | Go to Step 4  | 
4  | Test the voltage supply circuit of the inoperative lamp for high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 5  | 
5  | Test the ground circuit of the inoperative lamp for high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 15  | 
6  | The PK LP relay is located on the reverse side of the I/P fuse block. 
 Do the park lamps illuminate?  | Go to Step 7  | Go to Step 14  | 
7  | 
 Do the park lamps illuminate?  | Go to Step 9  | Go to Step 8  | 
8  | Test for a poor connection or a short to battery positive voltage open in the park lamp relay control circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 16  | 
9  | 
 Do the park lamps illuminate?  | Go to Step 10  | Go to Step 12  | 
10  | Test for a short to ground in the exterior lamps OFF input circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 11  | 
11  | Inspect for poor connections at the harness connector of the multifunction turn signal switch. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 17  | 
12  | Test for a poor connection, an open, or a short to battery positive in the park lamp switch on the signal circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 13  | 
13  | Inspect for poor connections at the harness connector of the BCM. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?  | Go to Step 19  | Go to Step 18  | 
14  | Repair a short to ground, an open, or a poor connection in the park lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair?  | Go to Step 19  | --  | 
15  | Replace the inoperative bulb. Did you complete the replacement?  | Go to Step 19  | --  | 
16  | Replace the PK LP relay. Refer to Relay Replacement . Did you complete the repair?  | Go to Step 19  | --  | 
17  | Replace the lamp switch assembly. Refer to Headlamp Switch Replacement . Did you complete the repair?  | Go to Step 19  | --  | 
18  | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?  | Go to Step 19  | --  | 
19  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  |