GM Service Manual Online
For 1990-2009 cars only

Backup Lamp System Check Domestic

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the ON position.
  2. Depress the brake pedal and move the control lever to the REVERSE position.

Both of the backup lamps illuminate.

Backup Lamp Inoperative - One Lamp

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

Backup Lamp System Check Export

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the ON position.
  2. Depress the brake pedal and move the control lever to the REVERSE position.

Both of the backup lamps illuminate.

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