Question about 1993 Chevrolet C1500

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Have a 6 wire plug on back of truck put new set of lights on trailer have left and right turn signal but no tail or stop on trailer all lights on truck work

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I had this same problem it end up being a connector where it split off to tail lights did not have continuity I replaced the connector with solder and heat shrink might give it a try .
hopefuly this will help you

Posted on Oct 09, 2008

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Trailer light hook-up


If this DeVille is trailer-ready, there is a trailer harness fuse box with 10A fuses for tail lights (PPL wire), left turn/stop/tail lights (YEL wire), and right turn/stop/tail lights (DK GRN wire

Oct 16, 2012 | 2001 Cadillac DeVille

2 Answers

2004 Chrys Concorde, new utility trailer, tail light converter. Problem: There is output from conv box in yellow wire, when turn signal is on, but when it is connected to the trailer harness, no output...


Your vehicle CANNOT be wired for a trailer without using the converter box. The only vehicles that do not require a converter box are the vehicles that use the stop lamp bulb as a turn signal. Your vehicle is equipped with SEPARATE stop lamp and turn signal bulbs.

To make the converter box work correctly, it must be wired according to the instructions to BOTH the stop lamps AND the turn lamps. The tail (or PARK) lamps DO NOT go through the converter box.
Your trailer uses the SAME bulb for stop and turn - THIS is the reason you need a converter.

The wire color for both your LEFT TURN and your RIGHT TURN are LIGHT GREEN/TAN. Although the wire colors are the same at the bulb sockets, these are SEPARATE circuits and must be wired to the correct wire at the converter box. (LEFT and RIGHT) The converter box will have an INPUT connection for EACH of these.

The wire color for your STOP lamps is WHITE/TAN. The converter box should only have one INPUT wire that connects to this. It doesn't matter which side of the vehicle you connect this wire to. All of the stop lamps are on the same circuit.

The converter will then have only one wire for LEFT turn and stop (usually YELLOW) this is the wire that needs to go to your trailer connector for left turn and stop.
The RIGHT turn and stop will most likely be GREEN coming out of the converter.

Sep 05, 2011 | Chrysler Concorde Cars & Trucks

1 Answer

I'm trying to wire my 89 jeep wrangler to be towed useing it's existing lights.the turn signals both flash when right or left is on? I've tryed it under the dash with no luck now all the way...


If the brake and turn signal are on the same bulb than you can Orin straight wiring. If the brake and turn signal are on different bulbs than you'll need a wiring harness with a converter box. I'm pretty sure the wrangler has the brake and turn signal on the Same bulb so let's start with basic trailer wiring. The green wire on the trailer harness is for the right side turn and brake for the trailer. This wire should be attached to the wire on the vehicle that supplies power to the right turn signal/ brake light. The yellow wire is the left turn signal, brake light on the trailer and should be attached to the wire on the vehicle that supplies power to the left turn signal /brake light. The brown wire is the tail lights on the trailer and should be attached to either the left or right side wire on the vehicle that supplies power to the tail lights. The white wire is grounD and it is vitally important that this wire be attached to the vehicle in a manor that supplies a good ground. Failure to suppy a good ground will result in all kinds of funky problems with the trailerer lighting such as all the lights linking when the tail lights and turn signals are on at the same time. If you have any specific questions I will be more than happy to try and help. Good luck.

Jun 29, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

Have issues with trailer lights. Both turn signals on trailer flash when I use left or right turn signal. Have 7 pin factory plug. Lights on trailer work fine, hooked up to 97 Silverado. Act funny on 2000...


Standard wiring colors are as follows:

4-Way

5-Way

6-Way

7-Way

Green

Yellow

Brown

White

Red

Blue

Purple

Right Turn & Brake

Left Turn & Brake

Tail Lights

Ground

Backup Lights

Electric Brakes

Auxiliary Power
Green- Right Turn and Brake
Yellow- Left Turn and Brake
Brown- Tail Lights
White- Ground
Red- Reverse (Back Up) Lights
Blue- Electric Brakes
Purple- Auxiliary Power

It sounds like your green and yello wires are shorted together somewhere along the length of the harness. I would check the wires on the trailer first. Easier yet, if you have another trailer to connec or access to another to use for testing, connect to it and see if the problem repeats; if it does the trouble is in the vehicle's wiring.

Jun 26, 2011 | 2001 GMC Jimmy

3 Answers

Trailer lights have two wire out of each fixture left turn goes on left side Right hand turn goes on the other side Tail lights connect how and brakes connect how?


One wire is for the brake/directional filament and the other wire is for the tail light. The fixture should be grounded when it is attached to the bracket. To test which is which (the brown wire is USUALLY the ail light) make sure the fixture is grounded and touch a hot wire to each of the wires coming from the fixture. Watch to see which wire lights up the brighter filament and this is the brake/directional light. The dimmer filament if the tail light. Brakes lights and directional lights are both the same filament. Wen the brakes are applied, both lights are activated. When a direction light is turned on, it simply flashes the brake light filament.

Apr 04, 2010 | 2007 GMC Sierra 3500HD

4 Answers

No trailer right turn signal or brake light


Hey Boon,

The pinouts for a 7-way plug are as follows:
Seven wire Trailer plugs:

Horse, stock or utility trailers:

White = Ground - 1
Blue = Electric Brakes - 2
Brown = Tail and clearance lights - 3
Black = Battery, aux power - 4
Yellow = Left turn/Brake - 5
Green = Right turn Brake - 6
Orange or Purple (not both) = Auxilliary or Reverse - 7

Recreational Vehicle:
White = Ground - 1
Blue = Electric Brakes - 2
Green = Tail and clearance lights - 3
Black = Battery, aux power - 4
Red = Left turn/Brake - 5
Brown = Right turn Brake - 6
Yellow = Auxilliary or Reverse - 7

In both cases 4 is battery and 7 is reverse, aux or not used.

Double check your wiring using these lists as a reference.

Click here for my post on Trailer wiring

This should get us closer to the answer.

Best regards,
Mike

Sep 08, 2009 | 2004 Dodge Ram 2500

1 Answer

Rear brake lights don't work


you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok

May 23, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

1 Answer

LEFT TRAILER TURN SIGNAL DOES NOT WORK


I'd get a 12vdc test light if you don't have one already & start from plug, and keep probing back from there. It may be as simple as a bad connection under truck where joined into harness.

Nov 29, 2008 | 2000 Dodge Ram 1500 Truck

1 Answer

Left turn signal on trailer


ok tdknutson, I'm not clear on this, does the truck left turn signal stop working when u plug the trailer in, or is it the trailer left turn signal that's not working, or both? When u plugged in the test light did it show u had power to that plug in? Let me know the answer to the above, and in the meantime, check the ground on the turn signal at the trailer. Make sure it's not loose, and tightly connected to the frame (or wire). Also, what type plug in do u have? 4, 6, 7 wire?

Oct 27, 2008 | 2003 GMC Envoy

3 Answers

Trailer wiring for 06 GMC Canyon 4x4


exactly what does it do? please explain what happens when you press the brake turn on the light than brake signals ect.....

Aug 13, 2008 | 2006 GMC Canyon

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