1

1. Pull the headlamp switch to the HEAD position.
2. Toggle the headlamp dimmer switch to the LOW position.

The low beam headlamps are ON.

2

Toggle the headlamp dimmer switch to the HIGH position.

1. The high beam headlamps are ON.
2. The high beam indicator is lit.
3. The low beam headlamps are OFF.

3

1. Release the park break.
2. Turn the ignition to the RUN position.
3. Cover the ambient light sensor with a dark cloth

In approximately 15 seconds the low beam headlights and park position lights turn on.

Twilight Sentinel Inoperative

4

1. Remove the dark cloth.
2. Apply a bright incandescent light to the ambient light sensor

In approximately 30 seconds the low beam and park position lamps turn off

Headlamps On in Daylight Conditions

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.