'88 5.0L AOD 2WD: Location of cruise control amplifier and horn relay? - Ford F150 Forums - Ford F-Series Truck Community.

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'88 5.0L AOD 2WD: Location of cruise control amplifier and horn relay?

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'88 5.0L AOD 2WD: Location of cruise control amplifier and horn relay?

Old 02-20-2012
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Default '88 5.0L AOD 2WD: Location of cruise control amplifier and horn relay?

I have a 1988 F150 with 5.0L engine, 2WD, AOD transmission, and cruise control.

My horn and cruise control both have stopped working, and I've discovered that a two-way and possibly a three-way short has occurred between the heavy-gauge sheet metal cone and the two non-ground connections under the steering wheel cover. I've examined the wiring diagram in the Haynes manual, and it looks like I need to do some diagnostics involving the horn relay and the cruise control amplifier.

Does anyone know where these two things are located?
rfhaney is offline  
Old 03-07-2014
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does it have air bag? is the air bag light flashing? you need a clock spring, you have to pull the wheel to swap it with a new one, i got one at napa online about 70 bux, when this part fails no horn, no cruise and no air bag
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Old 08-21-2017
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Hello I hope I am posting in the correct section. I have been asked to do some repair work for a friend on a 88 F150. Someone tried to hook up either an alarm or a radio and really did a number on the wiring under the dash of this truck. My question is, can anyone refer me to a wiring schematic diagram I can go off of and ensure all is correct before I go any further with this job? Any help would be appreciated. Nice looking truck she picked up cheap and wants to surprise her son with it as a gift. She hopes she can give it to him running. Thanks in advance for any info.
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