Horn Relay: Testing and Inspection

1. Remove horn relay from Power Distribution Center (PDC).
2. Using ohmmeter, test for continuity between ground and circuit 65 of horn relay.
a. When the horn switch is not depressed, no continuity should be present.
b. Continuity to ground when horn switch is depressed.
c. If continuity is not correct repair horn switch or wiring as necessary.
3. Insert a jumper wire between circuit 63 and 66 of the Power Distribution Center.
a. If horn sounds replace relay.
b. If the horn does not sound, install horn relay and refer to Horn Test.
4. Using voltmeter, test voltage at:
a. Circuit 62 and 66 test for battery voltage from fuse C to body ground.
b. If voltage is incorrect repair as necessary..

Horn Relay:

5. Check relay for 70 to 75 ohms resistance from terminal 85 to 86, If resistance not OK, replace relay.