Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Verify that the park, license and tail lamps are always ON. Do the park, license and tail lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Remove and reinstall each park lamp fuse one at a time. Do all of the park lamps turn OFF when a particular fuse is removed? | Go to Step 9 | Go to Step 4 |
4 |
Does the scan tool display Off? | Go to Step 5 | Go to Step 10 |
5 | Use the scan tool to check the body control module (BCM) park lamp switch input data. Does the scan tool display Inactive? | Go to Step 8 | Go to Step 6 |
6 | Test for a short to ground in the park lamp switch signal circuit. Refer to Circuit Testing Wiring Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 7 |
7 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 11 |
8 | 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 13 | Go to Step 12 |
9 | Repair the short to voltage in the affected park lamp supply voltage circuit. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 13 | -- |
10 | Replace the underhood fuse block. Refer to Underhood Electrical Center or Junction Block Replacement . Did you complete the repair? | Go to Step 13 | -- |
11 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 13 | -- |
12 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 13 | -- |
13 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
