Headlight Leveling Motor Test
Headlight Leveling Motor TestNOTE: Before testing, check the No. 11 (7.5 A) and No. 29 (7.5 A) fuses in the driver's under-dash fuse/relay box.
1. Disconnect the 3P connector (A) from the headlight leveling motor (B).
2. Check for continuity between headlight leveling motor 3P connector terminal No. 3 and body ground. There should be continuity.
- If there is continuity, go to step 3.
- If there is no continuity, check for:
- Faulty adaptive front lighting control unit.
- An open in the wire between the adaptive front lighting control unit and the leveling motor.
- Poor ground (G 401).
3. Turn the ignition switch ON (II).
4. Check for voltage between headlight leveling motor 3P connector terminal No. 1 and body ground. There should be battery voltage.
- If there is battery voltage, go to step 5.
- If there is no voltage, check for:
- Faulty adaptive front lighting control unit.
- An open in the wire between the adaptive front lighting control unit and the leveling motor.
5. Turn the headlight switch ON.
6. Check for voltage between headlight leveling motor 3P connector terminal No. 2 and body ground. There should be about 3 - 13 V.
NOTE: The voltage will vary depending on the vehicle position.
- If there is battery voltage, replace the headlight leveling motor.
- If there is no voltage, check for:
- Faulty adaptive front lighting control unit.
- An open in the wire between the adaptive front lighting control unit and the leveling motor.