Headlight Leveling Motor Input Test
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the 3P connector (A) from the headlight leveling motor (B).
  1. 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 .
  1. Reconnect the connector to the headlight leveling motor, and make these input tests at the connector.
    Cavity
    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 about 2 to 12 V.
    NOTE: Depending on the headlight leveling position.
    • Faulty headlight leveling control unit
    • An open in the wire
    2
    ORN
    Ignition switch ON (II)
    Measure the voltage to ground: There should be less than 1 V.
    • Faulty headlight leveling control unit
    • An open in the wire
    3
    WHT
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Faulty headlight leveling control unit
    • An open in the wire