SOURCE: steering column horn wiring diagram need. horn
have to pull strng wheel off you have a horn wire grounding out when you turn wheel only 2 wires biggest issue pulling steering wheel
SOURCE: 2003 dodge caravan airbag good
if you check the wire that comes from the horn button to the relay for voltage when the horn is pushed and have voltage then you have a bad relay,if not then you probably have bad contacts in the horn pad area or even the clock spring itself.
SOURCE: 2002 VW Beetle 1.8T\r\nRemoved horns and tested
Generally the steering wheel boss switch does not wear out (the horn is not over used!). I would check the fuses and then the relay and if they look OK check the wiring form the relay to the horns for continuity. Use a voltmeter to check that voltage is being supplied to the relay when the horn switch is pressed. Then check that voltage is being output by the relay in response to this voltage input. If this all looks OK then there is some kind of break in the wiring to the horn unit
SOURCE: Horn wiring skimatics for 2004 Oldsmobile Alero
The 2004 Oldsmobile Alero is a very reliable vehicle. It averages a 6.1 on the steering, handling, and braking tests.
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Heavy Duty Truck Diagnostic
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