Test A: The Horn Is Inoperative

PINPOINT TEST A: THE HORN IS INOPERATIVE

Normal Operation
The battery junction box (BJB) supplies voltage to the horn relay on the control and switched sides through fuse 5 (15A) on circuit 460 (YE/LB). When the horn switch is pressed, the horn relay receives the switched ground signal through circuit 1 (DB), energizing the horn relay. The horn switch provides the ground signal through circuit 848 (DG/OG). The horn relay then sends voltage to the horn on circuit 6 (YE/LG), enabling the horn to sound.

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Horn relay
- Horn
- Clockspring
- Horn switch (part of the driver air bag module)
- PCM

A1-A3:

A3-A5:

A5-A8:

A8-A10:

A10-A12: