GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Silhouette 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Fog Lights System Check

Fog Lights System Check Front

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Turn the headlamp switch to the HEAD position on the headlamp/instrument panel (IP) dimmer switch.
  2. Turn the headlamp dimmer switch to the LOW position.
  3. Turn the fog lamp switch to the ON position.
    • Both lamps are on.
    • The fog lamp switch indicator is on.
    • Refer to Fog Lamps Inoperative - All
    • Refer to Fog Lamps Inoperative - One
    • Refer to Fog Lamp Indicator Inoperative

2

Turn the headlamp dimmer switch to the HIGH position.

The fog lamps are off.

Refer to Fog Lamps Always On

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

Fog Lights System Check Rear -(Export)

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Turn the headlamp switch to the HEAD position on the headlamp and IP lamp dimmer switch.
  2. Press the rear fog lamp switch.
    • The rear fog lamps are on.
    • The rear fog lamp switch indicator is on.

Refer to Rear Fog Lamps Inoperative

2

Press the rear fog lamp switch.

The rear fog lamps are off.

Refer to Rear Fog Lamps Always On

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