Test Description

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

3. Listen for an audible click when the reverse lamp relay operates. Command both the ON and OFF states. Repeat the commands as necessary.
4. Tests for voltage at the control side of the reverse lamp relay.
5. Verifies that the control module is providing ground to the reverse lamp relay.

Fig 1: Backup Lamps Inoperative (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Backup Lamps Inoperative (2 Of 2)

Courtesy of GENERAL MOTORS CORP.