Headlamp Leveling System Test - Export

NOTE: The battery must be completely charged (12v) prior to testing. It may also be necessary to install a battery charger on the vehicles electrical system when performing this test. Refer to the Electrical, Battery System for detailed information.

1. Rotate the headlamp switch (low beam) to the ON position.
2. Disconnect the headlamp wire harness jumper electrical connector. This connector can be accessed by opening the bulb access panel, found in the appropriate front wheel well splash shield.
3. Check PIN #1 for battery voltage. If not present, trace the circuit until the open or short is found.
4. Check PIN #2 for ground. If not present, trace the circuit until the open or short is found.
5. Check PIN #3 for headlamp leveling sense voltage (2.83 - 8.60v). If not present, trace circuit until open or short is found.
6. If no open or short is found and the headlamp leveling system is still inoperative, replace the headlamp leveling motor (Refer to ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/HEADLAMP UNIT - REMOVAL).
7. If testing is still inconclusive, (Refer to ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/HEADLAMP LEVELING SWITCH - DIAGNOSIS AND TESTING) for further tests.