Test A: The Horn Is Inoperative

PINPOINT TEST A: THE HORN IS INOPERATIVE

A1-A2:

A2-A4:

A5-A7:

A7-A8:

A9:

Normal Operation
The battery junction box (BJB) supplies voltage for the horn to the central junction box (CJB) through circuit 30-DA1 (RD). The horn relay receives voltage from the CJB through circuit 30-DA1 (RD). When the horn switch is pressed, a ground signal is sent to the horn relay through circuit 91S-GJ7 (BK/BU) which energizes the horn relay. Voltage is then sent from the horn relay to the horn(s) through circuit 29S-GJ1 (OG/BU). The horn is grounded through circuit 31-GJ1 (BK).

Possible Causes
- fuse(s)
- circuit 29S-GJ1 (OG/BU) open
- circuit 30-DA1 (RD) open
- circuit 31-PG30 (BK) open
- circuit 31-GJ1 (BK) open
- circuit 91S-GJ7 (BK/BU) open
- horn relay
- horn switch
- horn(s)
- clockspring
- CJB