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Old 12-01-2011, 11:56 PM
brad12kx's Avatar
brad12kx brad12kx is offline
Just some guy in Canada


 
Join Date: Apr 2010
Location: Brandon, MB
Posts: 22,792
Gender: Male
Vehicle: 2010 Ram 1500 QC
Trim Level: Sport
Color: Black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 21
Rep:2581
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Don't waste any more time looking for the wire at a 5 wire relay isolator....it doesn't exist!

The horn switch in the steering wheel is strictly a 'Mux' circuit that is read by the steering control module and sent via data to the instrument cluster where it travels via the Can Bus to the TIPM. Basically, there is nothing to 'tap' into.

Once you get to the TIPM, there are options. Connector C3 on the bottom (C), Pin 21 with a Gray/Light Blue wire supplies power for Horn #1, and Pin 25 with a Gray/Yellow wire supplies power for Horn #2. The other side of both horns is tied to ground, so either of these wires could be wired through a relay to be use the horn for the remote start. Having said that, why does the remote start need a connection to the horn ???
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brad

Interested in one of my mods?
If it's underlined, it's a link to that mods thread.

2010 Ram 1500 Hemi Sport, 3.92, Leather, NAV, Alpine, Sunroof, Trailer tow, Brake Contoller, Rear Cam
Mods - 3M clear protect, Decals removed, Electric Tailgate Lock, Tow Hooks, Skid Plates, Bed Rug, Pace Edwards Bedlocker Electric Tonneau, Timbren Rear SES, Tinted Tail Lights, Debadged, Grill Blacked Out, Shorty Antenna, Black Chromed Emblems, Lightly tinted front windows, DS Predator, Cabin Air Filter, K&N Drop In, Mufflex (Magnaflo) DOD24M, Sonnax line pressure booster, Volant CAI
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