Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Interior Lights Dimming Schematics Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Verify that the headlamp switch on indicator is inoperative. Does the headlamp switch on indicator operate properly? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Are the headlamps operating properly? | Go to Step 4 | |
4 |
Is a ground signal present? | Go to Step 6 | Go to Step 5 |
5 | Test the headlamp on indicator control circuit for an open, high resistance or short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct a condition? | Go to Step 11 | Go to Step 8 |
6 | Test the headlamp indicator LED dimming circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct a condition? | Go to Step 11 | 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 11 | Go to Step 9 |
8 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
9 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | 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 |
