Horn Relay Location
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Horn Relay Location
Group, I am having a problem with the wifes 02 Expedition. The owners manual isn't clear to me which relay is for the horn. I believe it has gone bad. the cruise stopped working but I don't think it is the clockspring becouse the lights light up on the wheel but not the dash; and when the key is off the horn will blow. ( i can hear the relay inside the RAP module clicking when the key is off but I turn the key on and nothing. no clicking and no horn.) I bought a manual from the parts store which the wiring scematic is useless. I want to sqay I saw in a different maual that the reay uses both sides the de-energized side send to the rap module. anyway.. Does any one know where the relay is or which number? The local ford dealer wouldn't tell, they just said bring it in we we'll fix it
!
BTW I did a search but couln't find any info on the location, My 98 F150 is plain as day which relay it is.
!BTW I did a search but couln't find any info on the location, My 98 F150 is plain as day which relay it is.
Hotshot
Joined: Jan 2004
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From: St Louis
There is no horn relay. It's all contained in the CSM (Central Security Module).
The illumination of the switches on the steering wheel use different conductors within the clockspring and cannot be used to determine if the clockspring as a whole is good or not.
Steve
The illumination of the switches on the steering wheel use different conductors within the clockspring and cannot be used to determine if the clockspring as a whole is good or not.
Steve
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any idea why the horn will blow with the ignition off and when I turn the ignition to run it will not?
I checked the continuity of the ignition switch contacts according to my haynes/ chilton manual and it is o.k..
I checked the continuity of the ignition switch contacts according to my haynes/ chilton manual and it is o.k..
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I would sure think so. I guess I'm going to have to break down and buy the full schematic for the truck.
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Hotshot
Joined: Jan 2004
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From: St Louis
Originally Posted by ronk1969
Ok Answer me this if they sell a horn relay wouldnt you be able to find it on the expy ?
Bronc, you don't need a full schematic, you need the factory service CD. www.fordcds.com
FWIW, I'd suspect your CSM is at fault.
Steve
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FYI, I got the letter last week for the cruise control recall, took the truck in, they had to order more parts becouse they said the system was "contaminated". when they replaced the parts my cruise now works again and so does the horn. this was all at no charge for the recall.
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Bought an 01 Expedition
Hey guys i recently bought an 01 expedition and my horn isnt orking and neither is my cruise control i keep seeing things online about a cruise control switch recall. The speed control switch was under recall and it was completed by the previous owner but im trying to figure out this recall for the cruise control is and also anyboyd has any idea why my horn may not be thanks
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
The switch is mounted to the front of the brake master cylinder. If the recall was performed, the wiring harness to the switch was replaced and there should be a label on the harness near the switch stating so.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
Use a test light right at the connection to the horns. Pressing the horn pad on the steering wheel should give you +12v at the horn connection. If it does the horns are no good. If it does not then the next likely culprit is the clock spring being worn out at the steering wheel. Of course you should also check for a blown fuse or a bad horn relay before changing the clock spring.
Also check fuse #7 in the fuse box under the hood, that's for the horn.
Also check fuse #7 in the fuse box under the hood, that's for the horn.