Location of horn relay

mowvideo · 02-22-2013, 01:17 AM

Hi
I have a 1985 P type Supra and the horn has quit. The horns and relay are fine as the theft deturant system sounds them ok
I have taken the wheel off and the contact is fine to the ring on the wheel. Ohmmeter shows continuity when the button is pushed. Somehow a wire has broken between the relay coil and the steering wheel. I can't find an 85 manual. Does anyone know where the horn relay is mounted on the 85?
Thanks Mike

CanadianBak'inSupra · 02-24-2013, 06:29 PM

http://www.cygnusx1.net/Supra/Librar...Section=BE&P=7

im not sure if there is such a thing... did you check the fuse box by the drivers feet or in the engine bay??

cre · 02-24-2013, 11:36 PM

The functionality of the theft deterrant system's horn doesn't mean anything. I have yet to see a Toyota, factory alarm which didn't have a seperate horn for the alarm system. Looking at the wiring diagrams neither the alarm horn nor the two hazard horns have a relay.

Wiring diagram for the two hazard horns:
http://www.cygnusx1.net/Supra/Librar....aspx?S=E&P=13

02-22-2013, 01:17 AM	#1
mowvideo Stock Join Date: Nov 2007 Location: lincoln city oregon Posts: 4	Location of horn relay Hi I have a 1985 P type Supra and the horn has quit. The horns and relay are fine as the theft deturant system sounds them ok I have taken the wheel off and the contact is fine to the ring on the wheel. Ohmmeter shows continuity when the button is pushed. Somehow a wire has broken between the relay coil and the steering wheel. I can't find an 85 manual. Does anyone know where the horn relay is mounted on the 85? Thanks Mike

02-24-2013, 06:29 PM	#2
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	http://www.cygnusx1.net/Supra/Librar...Section=BE&P=7 im not sure if there is such a thing... did you check the fuse box by the drivers feet or in the engine bay?? __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

02-24-2013, 11:36 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The functionality of the theft deterrant system's horn doesn't mean anything. I have yet to see a Toyota, factory alarm which didn't have a seperate horn for the alarm system. Looking at the wiring diagrams neither the alarm horn nor the two hazard horns have a relay. Wiring diagram for the two hazard horns: http://www.cygnusx1.net/Supra/Librar....aspx?S=E&P=13 __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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