RE: Trailer Wiring -related question

From: Neil W. Bellenger (neil624b@rochester.rr.com)
Date: Wed Apr 30 2003 - 12:38:26 EDT


-----Original Message-----
On Behalf Of BARRY OLIVER
Sent: Wednesday, April 30, 2003 9:46 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: Trailer Wiring -related question

Pin 1 - 0700 position: Ground
        Pin 2 - 0500 position: Trailer brake B (+)
        Pin 3 - 1100 position: Trailer tow relay output (tail - marker)
        Pin 4 - 0100 position: Fused B (+) (extra 12 volt connection)
        Pin 5 - 0900 position: Left turn signal
        Pin 6 - 0300 position: Right turn signal
        Pin 7 - Center: Back-up lamp feed
>>>>>>>>>>>>>>>>>>>>>>

Ok, so the 4 that are used are: 1,4,5, & 6

Barry, Assuming you're using a flat, four-wire connector for a trailer that
doesn't require electric brakes, AND . . . the towing vehicle and the
trailer use a combined stop/turn filament in the tail lights, the
connections are;
Ground - white
Taillights - brown
Left signal - yellow
Right signal - green

This color code is an SAE standard and the bubble packs with the harness
frequently put the color code on the back. This is so that your harness will
have a better chance of plugging into your buddy's trailer and vice-versa.
Here's a link:
http://www.4wheelnoffroad.com.
Then technical departments - trailer wiring

The best place to hook up this type of connector is at the rear of the
vehicle at the taillight harness, once you have determined which wire on the
vehicle does what.
For a 50-watt lamp: assuming 12 volts DC, the current draw will be just over
4 amps. 16-gage wire should handle this but I usually don't go below 14-gage
"just because".



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