Testing

1. Disconnect wire connector at each horn.

Horn And Connector:

2. Using a voltmeter, connect one lead to ground and the other lead to the positive wire terminal.
3. Depress the horn switch, battery voltage should be present.
4. If no voltage, refer to Horn Will Not Sound. If voltage is OK, go to step Step 5.
5. Disconnect one horn wiring connector. Sound horn. If the remaining horn sounds replace the disconnected horn. If no sound, repeat the test for the other horn. If fuse blows or no sound with either test, replace both horns.

Refer to Horn System Test below. If the horn does not sound, check horn fuse located in the Power Distribution Center. If the fuse is blown, replace with the correct fuse. If the horn fail to sound and the new fuse blows when depressing the horn switch, a short circuit in the horn or the horn wiring between the fuse terminal and the horn is responsible, or a defective horn switch allowed the horn to burn out is responsible.

If the fuse is OK, test horn relay refer to Horn System Test table.

If the relay is OK, test horn refer to Horn Test.

CAUTION: Continuous sounding of horn may cause horn relay and horn to fail.

Should the horn sound continuously:
- Unplug the horn relay from Power Distribution Center.
- Refer to Horn Relay Test.