Headlight Adjuster Leveling Sensor Troubleshooting

With HID Lamp Before testing, inspect the No. 20 (7.5 A) fuse in the under-dash fuse/relay box.

1. Turn the ignition switch ON (II).

1. Turn the headlight switch ON.

1. Check for continuity between the No. 3 terminal and body ground.

Is there continuity?

YES | - | Go to Step 4 .
NO | - | An open in the wire or faulty headlight adjuster control unit.■

1. Check for voltage between the No. 1 terminal and body ground.

Is there 5V or more?

YES | - | Go to Step 5 .
NO | - | An open in the wire or body short.■

1. Raise the vehicle, and make sure it is securely supported.

1. Remove the headlights adjuster leveling sensor mounting nut from the control arm, and make the shaft move free.

1. Measure the voltage between the No. 3 [No. 8] and No. 6 [No. 9] terminals by moving the shaft (A) slowly.
   [ ]: Rear

Is the voltage 4.5 V when the shaft moves to +45 ° or more, and 0.5 V when the shaft moves to −45 ° or less?

YES | - | Check the headlight adjuster control unit. ■
NO | - | Faulty headlight adjuster leveling sensor.■