Test Description

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

The number(s) below refer to the step number(s) on the diagnostic table.

3. Tests for voltage at the coil side of the horn relay. The HORN fuse supplies power to the coil side of the horn relay.
5. Tests if ground is constantly being applied to the horn relay.

Fig 1: DTC 007 (1 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC 007 (2 Of 2)
Courtesy of GENERAL MOTORS CORP.