2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

HELP!!!!!!!!!Wiring problem Again

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Old Dec 30, 2010 | 11:28 PM
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From: tacoma
Exclamation HELP!!!!!!!!!Wiring problem Again

This one is somewhere with the horn!
Do you giys know where the wire is that connects it ?
everytime my battery get power the horn goes off!
i want to try and fix it but if i just cant find wire the short is ill just clip it if that will even shut it up!
thanks guys please help!!

-Momo
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Old Dec 31, 2010 | 09:53 AM
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inside the steering wheel.
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Old Dec 31, 2010 | 11:42 AM
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Towards the top of the CPU is a large plug with 15 wires or so. If the car battery is connected and the horn blowing try jumpering the Green/White wire to the Green/Orange wire in this plug and see if the horn stops blowing. If the jumper wire causes the horn to be silent then the problem lies within the G/O wire which runs from the steering wheel to the CPU. The G/O wire provides the horn relay w/a ground signal which is only supposed to occur when the horn is depressed. Sounds like your G/O wire always has a ground on it. That, or the horn relay contact is stuck,
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Old Dec 31, 2010 | 01:21 PM
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just take the steering wheel cover off(a couple screws on the back of the wheel)
it sounds like a wire has fallen off and touched ground,making the horn operate when power is on.
I thought the horn had a fuse too?..pull it out??
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Old Dec 31, 2010 | 03:27 PM
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well where is the cpu i think it is with that because after i put my dash back in i jumped it and i think if my memory serves me right i had only the blue plug on the passenger side plugged in and not the white one on that side are the horn wires on that white plug?
thanks
And i have a momo steering wheel that ive had off and the wire in my hand and the horn goes off
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Old Dec 31, 2010 | 08:26 PM
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From: phoenix, az
Originally Posted by momo253
This one is somewhere with the horn!
Do you giys know where the wire is that connects it ?
everytime my battery get power the horn goes off!
i want to try and fix it but if i just cant find wire the short is ill just clip it if that will even shut it up!
thanks guys please help!!

-Momo
Que?
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Old Dec 31, 2010 | 08:41 PM
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Originally Posted by momo253
well where is the cpu i think it is with that because after i put my dash back in i jumped it and i think if my memory serves me right i had only the blue plug on the passenger side plugged in and not the white one on that side are the horn wires on that white plug?
thanks
And i have a momo steering wheel that ive had off and the wire in my hand and the horn goes off
CPU relay is probably stuck. CPU located in drivers kick panel. Follow satch's advice.
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Old Jan 1, 2011 | 06:24 PM
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From: tacoma
ALright i need a fc wiring guide for dumbies or something im soo lost!
But where is the actually horn located at ?
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Old Jan 1, 2011 | 06:26 PM
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From: S.F. Bay Area, California 510
in front of the radiator, there's 2 of them
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Old Jan 1, 2011 | 06:54 PM
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From: tacoma
alright thanks !
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