I have a 1995 Chevy S 10 and the horn does not work. I think my problem is under the dash. Are there any switches,relays, or breakers I need to be looking\r\nfor? I have traced from horn to fuse panel and all looks good there.

Should have a fuse box under drivers side dash and a fuse box under the hood. I think the horn fuse is under the dash on drivers side. usually 10 amp. I would get a test light and a friend and have the friend push the horn while i held the test light on the horn connector wires. It has two wires a voltage and a ground. If fuse is good but still no power at the horn then check the switch in the steering wheel. You could have a bad "clock spring" or steering wheel switch.

the relay is probably under hood on driver side fuse panel.most dodge has a template on underside of cover

Check the fuse and circuit breaker "A". I have the same problem except I am missing the circuit breaker. There was a circuit breaker that was jury rigged with some wires that worked for awhile until the wires broke.

You may have a late 95 early 96 which moved the fuelpump relay under the dash inside glovebox.

Flasher module (under dash by left leg); possible fuse in panel driver side dash by door; possible relay in power center under hood on driver side by brake booster.

Fuse 1: 30A, Green; A/C Heater Motor Fuse 2: 30A Silver (Circuit Breaker); Power Windows Fuse 3: 15A Light Blue; Overhead Consule, Day/Night Mirror, Reverse Lamps Fuse 4: 5A Tan; ABS (There is not on in the picture) Fuse 5: 20A Yellow; Power Door Locks Fuse 6: 20A Yellow; Horn Relay, Instrument Cluster, Radio Choke Relay (on Premium audio system) Fuse 7: 10A Red; Buzzer Module, Stop Lamps Fuse 8: 20A Yellow; Headlamp Switch Fuse 9: 15A Light Blue; Cigar Lighter Fuse 10: 20A Yellow; Windshield Wiper Fuse 11: 20A Yellow; Turn Signal Fuse 12: 10A Red; Radio Fuse 13: 4A Pink; Recives power from Fuse 8 to power instrument lights (such as the cigar ligher lighting, ash tray light, dash lights, radio lights, etc.) Fuse 14: 15A Light Blue; Instrument Cluster Fuse 15: EMPTY Fuse 16: 5A Tan; Buzzer Module, 4WD Indicator Lamp, Tranny O/D Switch, Tranny Oil Temperature Sensor Fuse 17: EMPTY Fuse 18: EMPTY Fuse 19: EMPTY Fuse 20: 25A Natural; Park Lamp Relay, Off Road Lamp Switch (There is not one in the picture, I believe this is only on vehicles with fog lamps)
NOTE 1: Fuse 3 and Fuse 14 provide power for the Airbag Control Module Cavities 2, and 1, respectivly. NOTE 2: Fuse 4, Fuse 7 and Fuse 11 provide power for the Controller ABS Brake Cavities 7 and 12, 9, and 3, respectivly.
Under Fuse 4, 8, and 12 is the Buzzer Module (Black rectangle in the picture) Under Fuse 16 is the Hazard Flasher (Silver circle in the picture) Under Fuse 20 is the Horn Relay (White plastic looking in the picture) To the side of Fuse 17 and 18 is the ABS Warning Lamp Relay (Open cavity in the picture) To the side of Fuse 19 and 20 is the Turn Signal Flasher (Blue circle in the picture) Between the Turn Signal Flasher and the Horn Relay is the Time Delay Relaly (the other Silver Circle in the corner, in the picture

This is what I have for your horn wiring diagram. The relay has two sides, the switch side,right side in diagram, and the control side, left side in diagram. The control side needs voltage and ground to energize relay, top wire is voltage and bottom wire is ground on that side. My guess is problem with wiring in steering column--clockspring or horn switch. If you unplug relay, use jumper wire on switch side cavities, the horn should sound, if so, the problem is on the control side of relay. Just my opinion.

I think I'd have to gamble on a new relay, and clean up contacts in those sockets with electrical cleaner, then add dielectric grease before plugging in new one. Do the pump first obviously.

If the horn works with direct connection, and fuse, relay, and circuit breaker are all good, it's the switch in the steering wheel. If it is anything like the chrysler auto's, the switch and the air bag module is all one unit, can't replace just the switch, the whole thing, and it's about $700 to $800 for those units, at least it is here, and can only get them at a dealer.

located under the left kick panle.