Headlamp Switch On Indicator Always On
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Headlamp Switch On Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Interior Lights Dimming Schematics | |||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 | Verify that the headlamp switch on indicator is always on. Does the headlamp switch on indicator operate properly? |
Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems | Go to Step 3 |
| 3 | Are the headlamps operating properly? | Go to Step 4 | Go to Symptoms - Lighting Systems |
| 4 |
|
Go to Step 5 | Go to Step 6 |
| 5 | Test the headlamp on indicator control circuit for a short to ground. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct a condition? |
Go to Step 10 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 8 |
| 7 | Inspect for poor connections at the harness connector of the Body Control Module (BCM). Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 9 |
| 8 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? |
Go to Step 10 | - |
| 9 |
IMPORTANT:
Perform the setup procedure for the BCM. Replace the body control module (BCM). Refer to BODY CONTROL MODULE REPLACEMENT
in Body Control System.Did you complete the replacement? |
Go to Step 10 | - |
| 10 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |