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 | Place the headlamp switch in the PARK position. Do the park, license, and tail lamps illuminate 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 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 18 | 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 18 | Go to Step 14 |
6 | Using a scan tool, command the park lamps ON. Do the park lamps illuminate as expected? | Go to Step 7 | Go to Step 8 |
7 |
Do the park lamps illuminate? | Go to Step 11 | Go to Step 13 |
8 |
Do the park lamps illuminate? | Go to Step 10 | Go to Step 9 |
9 | Test the park lamp supply voltage circuit for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 18 | Go to Step 12 |
10 | Inspect for poor connections at the harness connector of the park lamp relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 18 | Go to Step 15 |
11 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 18 | Go to Step 16 |
12 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 18 | Go to Step 17 |
13 | Repair the park lamp switch ON signal circuit for high resistance or an open. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 10 | -- |
14 | Replace the inoperative bulb. Did you complete the replacement? | Go to Step 18 | -- |
15 | Replace the park lamp relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 18 | -- |
16 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 18 | -- |
17 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
