Test Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

Listen for an audible click when the Rear Defog relay operates. Command both the ON and OFF states of the rear defog relay. Repeat the commands as necessary.

Fig 1: Rear Window Defogger Inoperative Diagnostic Procedure (Steps 1-8)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Rear Window Defogger Inoperative Diagnostic Procedure (Steps 9-21)

Courtesy of GENERAL MOTORS CORP.