Headlamps On in Daylight Conditions
Headlamps On in Daylight Conditions
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Headlights Schematics | ||||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 |
|
- | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
| 3 |
|
Above 2.2 V, Below 1.3 V | Go to Step 4 | Go to Step 10 |
| 4 | Disconnect the headlamp relay. Are the headlamps illuminated? |
- | Go to Step 12 | Go to Step 5 |
| 5 |
|
- | Go to Step 6 | Go to Step 9 |
| 6 | Disconnect the BCM connector C2. Are the headlamps illuminated? |
- | Go to Step 7 | Go to Step 11 |
| 7 | Test the headlamp relay coil supply voltage circuit of the headlamp relay for a short to voltage. Refer to Circuit Testing
, and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 17 | Go to Step 8 |
| 8 | Inspect for poor connections at the headlamp relay. Refer to Testing for Intermittent Conditions and Poor Connections
, and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 17 | Go to Step 13 |
| 9 | Inspect for poor connections at the headlamp and panel dimmer switch . Refer to Testing for Intermittent Conditions and Poor Connections
, and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 17 | Go to Step 14 |
| 10 | Inspect for poor connections at the ambient light sensor. Refer to Testing for Intermittent Conditions and Poor Connections
, and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 17 | Go to Step 15 |
| 11 | Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections
, and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 17 | Go to Step 4 |
| 12 | Repair the short to voltage in the battery positive voltage circuit between the headlamp relay and the headlamps. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
- | Go to Step 17 | - |
| 13 | Replace the headlamp relay. Did you complete the replacement? |
- | Go to Step 17 | - |
| 14 | Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? |
- | Go to Step 17 | - |
| 15 | Replace the ambient light sensor. Refer to Ambient Light Sensor Replacement . Did you complete the replacement? |
- | Go to Step 17 | - |
| 16 |
IMPORTANT:
Replace the BCM. Refer to Body Control Module Replacement
in Body Control System.Did you complete the replacement?Perform the setup procedure for the BCM. |
- | Go to Step 17 | - |
| 17 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 3 |