Headlight Leveling Inoperative
WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Headlight Leveling Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Headlight Leveling Schematics Connector End View Reference: Lighting Systems Connector End Views |
|||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 |
|
Go to Step 3 | Go to Step 4 |
| 3 | Does the automatic headlamp leveling system operate properly? | Go to Step 10 | Go to Step 6 |
| 4 |
|
Go to Step 5 | Go to Step 7 |
| 5 |
|
Go to Step 6 | Go to Step 8 |
| 6 | Inspect for poor connections at the harness connector of the automatic headlamp leveling module. 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 10 | Go to Step 9 |
| 7 | Repair the open or short to ground in the ignition 1 voltage circuit of the automatic headlamp leveling module. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 10 | - |
| 8 | Repair the open or high resistance in the ground circuit of the automatic headlamp leveling module. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 10 | - |
| 9 |
IMPORTANT:
Perform the setup procedure for the automatic headlamp leveling module. Refer to Automatic Headlamp Leveling Calibration Description and Operation
. Replace the automatic headlamp leveling module. Refer to Headlamp Leveling Module Replacement
.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 2 |