Trailer Brake for 2006 Vectra

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Joined
Mar 14, 2012
Posts
10
Location
Calgary, Alberta Canada
I'm wanted to install trailer brake in my '06 Vectra so that I can tow a trailer with brakes.  I can see the trailer harness on the motorhome has the trailer brake wire in the harness.  I'm looking for advice to track down the wires from there into drivers compartment.  Anyone done this? 
Thanks,
Rob.
 
Rob,

My '04 was prewired for trailer brakes and I suspect yours is the same.  The connector was up under the dash near the brake pedal.  You are looking for a shrink-wrapped set of wires with a square plug and mine was clearly marked with a label.

This link has a picture...  http://www.usgear.cc/utb_ec4128.htm

Hopefully your '06 is similar.

Ed
 
Your trailer brake harness is front left of the dash area on the floor in the corner somewhere.  You will probably need to remove the little plastic metal foot rest and dig around for the pigtail.

Here's a wiring chart I made when I hooked up our Tekonsha brake controller:

Freightliner trailer brake controller wiring as found on a 2005 Winnebago Itasca Horizon:

Small red with white tracer----------------------->  Brake lights
Large red, no tracer--------------------------------> Auxiliary +12V (always on)
Large red with white tracer-----------------------> To trailer brakes
Black---------------------------------------------------> Ground
Brown-------------------------------------------------> Illumination (+12V supplied when headlights are turned on)

Wiring up the Tekonsha P3 brake controller:

Freightliner wiring                                P3 controller wiring
----------------------------------------------    ------------------------
Small red with white tracer-------------->  Red
Large red, no tracer-----------------------> Black
Large red with white tracer--------------> Blue
Black------------------------------------------> White
Brown----------------------------------------> Not used
 
John, you are right.

My plug/harness was up under the dash, but now that I think about it the prior owner must have pulled it from that lower left footwell because that's where the wiring tracks back, into that cable well under the left front footrest on the floor.

Had to get into that footwell for my CB harness too.  In my model the slanted metal footrest was screwed down along the bottom, about 2 or 3 screws that need to be felt for in the carpet.
 
emiddleb said:
..In my model the slanted metal footrest was screwed down along the bottom, about 2 or 3 screws that need to be felt for in the carpet.

I forgot it was metal,  been a year or so since I removed it.

I've used this forum twice since I've bought my Vectra (1 year ago), both times within minutes I'm getting extremely accurate advice, amazing the power of this forum, thanks guys,
Rob.

Accurate a good part of the time at any rate  :D.  You're welcome!  BTW, the P3 brake controller is one of the best out there.
 
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