93 F150 Horn Doesn't Work
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Senior User
Joined: Aug 2008
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From: St. Louis, Misssouri
93 F150 Horn Doesn't Work
I have searched the site for answers to this , but cannot find any that apply. When the horn button on the steering wheel is pressed, the horn does not work. I have swapped relays with the Fuel Pump. Since the part numbers are the same and the truck starts, i could hear the pump run, so I assumed the relay is good. Horn still does work. I don't hear the relay closing, so I think there is s problem in the steering wheel button. Looking for direction. My service manual is pretty vague.
Laughing Gas
Joined: Apr 2011
Posts: 913
Likes: 7
Im guessing you jumped the horn off the battery straight at it's terminal?
Or did you put power down through the legs of the relay?
Listen to hear if the relay is clicking when you press the steering wheel.
If it doesnt click I'd say the issue is between the wheel and relay.
If it does click, the issue is probably between the relay and horn.
Check for continuity with a multimeter when you have the chance.
Or did you put power down through the legs of the relay?
Listen to hear if the relay is clicking when you press the steering wheel.
If it doesnt click I'd say the issue is between the wheel and relay.
If it does click, the issue is probably between the relay and horn.
Check for continuity with a multimeter when you have the chance.
Thread Starter
|
Senior User
Joined: Aug 2008
Posts: 162
Likes: 0
From: St. Louis, Misssouri
Im guessing you jumped the horn off the battery straight at it's terminal?
Or did you put power down through the legs of the relay?
Listen to hear if the relay is clicking when you press the steering wheel.
If it doesnt click I'd say the issue is between the wheel and relay.
If it does click, the issue is probably between the relay and horn.
Check for continuity with a multimeter when you have the chance.
Or did you put power down through the legs of the relay?
Listen to hear if the relay is clicking when you press the steering wheel.
If it doesnt click I'd say the issue is between the wheel and relay.
If it does click, the issue is probably between the relay and horn.
Check for continuity with a multimeter when you have the chance.
Thread Starter
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Senior User
Joined: Aug 2008
Posts: 162
Likes: 0
From: St. Louis, Misssouri
Cool! Thanks! So I can use my VOM to check for power from the horn button #86, and I can supply power to #87 and check the circuit for the horn. Thanks. Any information about the horn button on the steering wheel?
Laughing Gas
Joined: Apr 2011
Posts: 913
Likes: 7
I dont remember if they had an option for airbag that far back.
If you have a JY or LKQ near you i'd drop in and snag another if it doesnt work.
I believe that one has two leads that can be metered as well. Been awhile since i've had mine off. Same concept. Meter for continuity and try to depress switch and see if it closes the circuit.
If you have a JY or LKQ near you i'd drop in and snag another if it doesnt work.
I believe that one has two leads that can be metered as well. Been awhile since i've had mine off. Same concept. Meter for continuity and try to depress switch and see if it closes the circuit.
Thread Starter
|
Senior User
Joined: Aug 2008
Posts: 162
Likes: 0
From: St. Louis, Misssouri
I dont remember if they had an option for airbag that far back.
If you have a JY or LKQ near you i'd drop in and snag another if it doesnt work.
I believe that one has two leads that can be metered as well. Been awhile since i've had mine off. Same concept. Meter for continuity and try to depress switch and see if it closes the circuit.
If you have a JY or LKQ near you i'd drop in and snag another if it doesnt work.
I believe that one has two leads that can be metered as well. Been awhile since i've had mine off. Same concept. Meter for continuity and try to depress switch and see if it closes the circuit.
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Laughing Gas
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Thread Starter
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Senior User
Joined: Aug 2008
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From: St. Louis, Misssouri
Horn still doesn’t work! WTF??? I’m thinking of just installing a separate button to the relay.
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