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 |
Do the park lamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Using a scan tool, command the park lamps ON and OFF. Do the park lamps turn off as expected? | Go to Step 4 | Go to Step 5 |
4 | Disconnect the headlamp switch connector. Are the park lamps illuminated? | Go to Step 8 | Go to Step 6 |
5 | Test the park lamp supply voltage circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
6 | 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 11 | Go to Step 9 |
7 | 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 11 | Go to Step 10 |
8 | Repair a short to ground in the park lamp switch ON signal circuit of the headlamp switch. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 11 | -- |
9 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | 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 |
