GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Intrigue 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Backup Lamp System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Apply the park brake.
  2. Turn the ignition switch to the on position.
  3. Shift the transaxle gear selector into REVERSE.

The backup lamps turn on.

2

Shift the transaxle gear selector lever into PARK or NEUTRAL.

The backup lamps are off.

Backup Lamps Always On

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