SUBFORD HELP Trailer Wiring
Thread Starter
|
New User
Joined: Jun 2007
Posts: 12
Likes: 0
SUBFORD HELP Trailer Wiring
I have a 2003 Super Duty. The running lights on the trailer work but the turn/stop don't. (7 pin). I have 11.5 volts at the plug. I have replaced the relay's under the hood and still nothing. The trailer works on a Tahoe so I know the trailer is operational. I have 12 volts at fuse 6. I have 12 volts going into the relays and when the brake is depressed the 12 volts goes away...HELP
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Do the left & right trailer relays click when the left or right turn is flashing on the truck?
What pin number?
The left and right trailer stop and turn relays?
Use a test light and see if it lights up at the fuse and relays.
I would replace fuse #6 if you read it with a meter as meters lie. I think a test light will tell you it is bad.
Originally Posted by speed_demon928
I have a 2003 Super Duty. The running lights on the trailer work but the turn/stop don't. (7 pin). I have 11.5 volts at the plug.
Originally Posted by speed_demon928
I have replaced the relay's under the hood and still nothing.
Originally Posted by speed_demon928
The trailer works on a Tahoe so I know the trailer is operational. I have 12 volts at fuse 6. I have 12 volts going into the relays and when the brake is depressed the 12 volts goes away...HELP
I would replace fuse #6 if you read it with a meter as meters lie. I think a test light will tell you it is bad.
Last edited by subford; Aug 22, 2007 at 08:49 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Pacrat
1999 - 2003 7.3L Power Stroke Diesel
14
Oct 23, 2009 10:34 PM
going360
1994.5 - 1997 7.3L Power Stroke Diesel
9
Oct 29, 2007 08:31 PM
