Headlight Leveling Motor Input Test
- Turn the ignition switch to LOCK (0).
- Disconnect the 3P connector (A) from the headlight leveling motor (B).
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
- If the terminals are OK, go to step 4.
- Reconnect the connector to the headlight leveling motor, and do these input tests at the connector.
- If any tests indicate a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the headlight leveling motor (see HEADLIGHT LEVELING MOTOR REPLACEMENT ).
WIRE TEST CONDITION REFERENCE TABLECavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 1 YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. - Faulty headlight leveling control unit
- An open in the wire
2 PNK Ignition switch ON (II), turn the headlight switch ON Measure the voltage to ground: There should be about 2-12 V. Note: Depending on the headlight leveling position. - Poor ground (G401)
- Faulty headlight leveling control unit
- An open in the wire
3 RED Ignition switch ON (II) Measure the voltage to ground: There should be less than 0.1 V. - Faulty headlight leveling control unit
- An open in the wire