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Topic: Flat 7 pin trailer installation  (Read 338 times) previous topic - next topic

Flat 7 pin trailer installation

Trying to install a 7 pin trailer connection
Only four wires on original 5 round pin connector
Missing back up light,trailer brakes, and 12 volt ignition.
Found a loom with 6 wires near hitch numbered
EX1 to EX6 2087,they do not seem to be connected,. Can any one tell me what they are for.
2003 gv 320

Re: Flat 7 pin trailer installation

Reply #1 –
Quote from: Speedup –
Found a loom with 6 wires near hitch numbered
EX1 to EX6 2087,they do not seem to be connected,. Can any one tell me what they are for.
2003 gv 320

Spare wires.  Likely run all the way to the front of the coach.

extra wires

If you have the owner's manual for the coach, there will be a wire list in it to help with any future tracing as well
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320
 

Re: Flat 7 pin trailer installation

Reply #2 –
Quote from: Michelle –
Spare wires.  Likely run all the way to the front of the coach.

extra wires

If you have the owner's manual for the coach, there will be a wire list in it to help with any future tracing as well

Reverse light wire is there. Use one of the "extra" heavy wires for charge wire, the other for brake control.
As Michelle said, they are in the front, rolled up lower left under dash cover.
There are also a few wires that go from that area to above driver, not to be confused.
You will have to make your charge wire and brake connections yourself.
BTW, if you don't have a combiner at rear, you will need to install one for combined light on trailer.
Chris
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348