2012 ram Trailer brake controller wiring
#1
2012 ram Trailer brake controller wiring
I recently purchased a 2012 ram which I am trying to wire a brake box in. Someone cut the end off the hardness and I don't know what each wire means. There is a white with purple stripe, yellow with red stripe, green with black and a black. Any help would be great.
thanks
thanks
#2
#4
I don't think that you can cut the harness on the truck - the plug for the harness is built in near the column. (at least on an 09) What they cut was the plug in accessory harness. If you look at the opposite end of what you have left, you will find it plugged in under the dash. Remove it and replace it. Or at a minimum removing it will make it easier to splice into your controller side harness.
Last edited by oldjeep; 07-03-2013 at 11:47 AM.
#5
#6
BK/DG (Black/Dark Green Stripe) - Ground
DG (Dark Green) - B+ (Power to trailer Brakes)
WT (White) - Brake light switch signal (09 is just white - no stripe)
YL/RD (Yellow/Red Stripe) Bat + through fuse J09 (Supply side power)
#7
Join Date: Jan 2010
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The wiring diagrams for the 2010-2014 trucks are available free here;
https://techauthorityonlinedemo.extr...ew/classic.htm
A115 - YL-RD (Yellow-Red) - Fused 30A to brake controller
L56 - WT-VL (White-Violet) - Stop Lamp Signal
Z905 - BK-DG (Black-Dark Green) Ground
B40 - DG (Dark Green) - Trailer electric Brake
https://techauthorityonlinedemo.extr...ew/classic.htm
A115 - YL-RD (Yellow-Red) - Fused 30A to brake controller
L56 - WT-VL (White-Violet) - Stop Lamp Signal
Z905 - BK-DG (Black-Dark Green) Ground
B40 - DG (Dark Green) - Trailer electric Brake