Go Back   Ford Truck Enthusiasts Forums > Diesel > 1999 - 2003 7.3L Power Stroke Diesel
Sign in using an external account
Register Forgot Password?


1999 - 2003 7.3L Power Stroke Diesel SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 05-28-2004, 10:33 PM
ugly02f350 ugly02f350 is offline
New User
 
Join Date: Mar 2004
Location: KY
Posts: 11
ugly02f350 is starting off with a positive reputation.
trailer fuses and relay location

HI,

I am trying to get my trailer working. Someone who had my truck before messed up the trailer harness. I think they blew the trailer fuse or relays. I have an 02 f350 and I need the location of the trailer lighting fuses and relays. The chiltons manual said relay box 4. I can't find it..

I have B+ and ground, no trailer brake or right turn signal or parking lights.

Trailer brake works fine at the controller, signal is lost somewhere.

Thanks,
Scott
Reply With Quote
  #2 (permalink)  
Old 05-29-2004, 06:30 AM
powerstroker250 powerstroker250 is offline
Posting Guru
 
Join Date: May 2001
Posts: 1,702
powerstroker250 is starting off with a positive reputation.
The fuse/relay box is under the hood on the driver's side near the firewall.
__________________
Early 99 F250 SD SC PSD shorty, 4x4 6spd " Truck""
Reply With Quote
  #3 (permalink)  
Old 05-29-2004, 12:11 PM
NewHolland NewHolland is offline
Senior User
 
Join Date: Jan 2003
Location: hayward usa
Posts: 135
NewHolland is starting off with a positive reputation.
have the same problem with the 02 7.3 I just picked up.Have trailer running lights but no turn or stop signals.A tester says no power for these circuits at the plug in.Dont see that fuse box under the hood..Thought it was only under the hood on the gassers??? Any comments welcome....Thanks...........
__________________
NH
Reply With Quote
  #4 (permalink)  
Old 05-29-2004, 12:27 PM
01 PSD 01 PSD is offline
New User
 
Join Date: May 2004
Posts: 16
01 PSD is starting off with a positive reputation.
Trailer Wiring

I had the same problem on my 01 F-250 Powerstroke. I had brakes and running lights but nothing else. It turned out to be fuses. Under the hood on the driver's side there is a fuse box. Remove the cover and there shoud be a row of big fuses and a couple rows of small ones. Check all of these fuses. I had one large one burnt out and one small. Ireplaced them and everything works great.
Reply With Quote
  #5 (permalink)  
Old 05-29-2004, 04:53 PM
Scrub Scrub is offline
Freshman User
 
Join Date: Nov 2003
Posts: 32
Scrub is starting off with a positive reputation.
On my 02 PSD the fuses are right under the steering wheel. Loosen the 4 spring loaded screws and the cover pops off exposing the fuses. There is a fuse diagram in your owners manual. Remember there are fuses for BOTH your truck turn signals and your trailer turn signals! They use mini fuses. If you cant find the right fuse repost and I will look it up in my owners manual. Good luck
__________________
2002 F250 PSD 4+4 ex-cab 6 spd
2002 Ford Taurus--1994 Taurus
1965 Ford 3000 and 1947 8N tractors
Reply With Quote
  #6 (permalink)  
Old 05-30-2004, 12:20 PM
NewHolland NewHolland is offline
Senior User
 
Join Date: Jan 2003
Location: hayward usa
Posts: 135
NewHolland is starting off with a positive reputation.
Thanks for the info guys.The turn signal relay is under the hood on the left side fender,I could hear it clicking to find it,its working fine..My 2000 PSD had this behind the radio in the dash when I had to replace it.But the fuses are under the steering wheel just like you said.My owners manual says its a 20 amp fuse in position number 6 for the trailer tow turn/stop relay..Put new fuse in even though it didnt look burnt.Still all the lights on the truck work right ,but only have running lights on trailer,no turn or stop lamps.trailer is fine,I plugged it into my 02 150 and everything works right..still baffled..Tester says no current at the plug for those circuits.Wiring up to the plug looks good. I think I will ask the dealer after the holiday weekend..Thanks for your help guys..Is MUCH appreciated...
__________________
NH
Reply With Quote
  #7 (permalink)  
Old 05-31-2004, 05:07 PM
algutkin algutkin is offline
New User
 
Join Date: May 2004
Location: Southern CA
Posts: 12
algutkin is starting off with a positive reputation.
Ford Trailer Light Problem

The trailer lights went out on my boat trailer for almost no reason, there were no shorts. I traced the problem to the connector on back of my 04 Ford F250 Diesel. The wires were dead, except for the running lights. After spending hours tracing and pulling apart harness connectors underneath the truck, I finally determined that the problem was up front. Even though the truck is under warrantee, I hate to visit the service department, it is one heck of a in-convenience, I came here instead. This is what I learned.

Late model Ford trucks have seperate fuses for the trailer connector, you know the one located near the hitch. (different than other vehicles that I owned) It seems that these mini fuses, even though they have a rating similar to the big ones, seem to blow for almost no reason. After reading above, my problem was quickly determined to be a 20 amp fuse. On the late model F250s, the fuse box is located inside the cab, to the left of the steering column, behind a large compartment cover secured with four plastic pop out screws. I replaced the 20 amp mini fuse and "wala", the trailer lights work.

Probably a good idea to keep plenty of mini fuses on hand, several sub-circuts are protected with mini fuses. Glad this web site was here, saved me from another trip to the service depart. I'll talk about the super sensative seat belt retractors, you know, the kind that lock up and trap you, perhaps this one is best left for another forum.

algutkin

Last edited by algutkin; 05-31-2004 at 05:10 PM. Reason: grammar
Reply With Quote
  #8 (permalink)  
Old 05-31-2004, 08:52 PM
f350xlt460's Avatar
f350xlt460 f350xlt460 is offline
Elder User
 
Join Date: Feb 2003
Location: Virginia
Posts: 674
f350xlt460 is starting off with a positive reputation.
if fuses are blowing, there are problems, esp if it is a 20 amp fuse and you have only a few lights on a trailer (boat trailer vs eclosed trailer).
Find out why the fuse blew and fix the problem rather then patching it with a new fuse next time.
__________________
'99 F350 PSD C/C, DRW, 4x4, 6spd, 4.10 ls, superchip, 4" exhst, on-board air, custom fab'd rear bumper, 2 1/2" receiver hitch

'01 F250 PSD Ext Cab 4x4 Auto 3.73 ls, diablo tuner, 4" exhaust, custom fab'd rear bumper
Reply With Quote
  #9 (permalink)  
Old 06-01-2004, 08:39 AM
algutkin algutkin is offline
New User
 
Join Date: May 2004
Location: Southern CA
Posts: 12
algutkin is starting off with a positive reputation.
Perhaps a Common Problem with Ford

I'm not going to say that I know it all about trailer connectors and lights, however, I have been hooking up lights and wiring connectors for 50 years without blowing a fuse.

There are two four types of fuse protection common to vehicles, fusable links, circut breakers, fast fuses, slow burn fuses. Fusable links are the hardest to find, they look like normal wires and are difficult to find. Slow burn fuses arer the best, they take a short term licking before blowing. In any case, there is no way that a volt/ohm testor should burn out a fuse, yet it did. Same problem occurred with my 2001 Diesel Excursion.

Sure, in most cases, boat trailer lights are under water, get corroded, wires break off and short out. In other cases a trailer could drain more than 20 amps and blow a fuse. Consistant blowing of fuses would indicate a short, which should be traced and fixed. Not the case here, the fuse blew with use of a meter. Perhaps Ford uses inferior fuses.

The information contained here is not supposed to help people cure a short problem, but, merely be informative on how Ford protects the trailer circut, and where to find the burned fuse.

Al
Reply With Quote
  #10 (permalink)  
Old 06-01-2004, 08:18 PM
cangim's Avatar
cangim cangim is offline
Postmaster
 
Join Date: Nov 2003
Location: Utah County, UT
Posts: 2,986
cangim is gaining momentum as a positive member of FTE.cangim is gaining momentum as a positive member of FTE.
I would have to agree with f350xlt460, if the fuses are blowing there is a reason. I think tracing a short out would be far easier than trying to repair a burnt down rig. If you have a volt meter, start at the plug in the back. Ohm each wire to ground, ground should read Zero Ohms, the rest should read open. Then check between each wire. It a place to start, and you need to start somewhere. Also, drop the spare tire, there should be on the driver side frame rail a large interconnect for all the tail lights and Trailer wiring. Make sure you are getting good contacts there. You may want to check your trailer wires there for voltage. Good luck at any rate, going to take some time to figure it out.

Mike
__________________
Wishin I was still camping somewhere....
-Mike
Reply With Quote
  #11 (permalink)  
Old 06-02-2004, 12:39 AM
FLASH 13's Avatar
FLASH 13 FLASH 13 is offline
Junior User
 
Join Date: Oct 2003
Posts: 87
FLASH 13 is starting off with a positive reputation.
There was more than one fuse to be used on my trailer light/electric brake set up. they were all the big ones. i think there was three. musta rewired my trailer 3 times before i even checked for fuses. you think if they had the connector it would be ready to use.
__________________
2002 F-250 SUPERCAB 4x4

A-PIL GUAGES / DAHL 150
6637 INTAKE / GARRETT GT38R BB
GIBSON 4" EXT / SYNTHETIC DRIVETRAIN
BOOST CON/ MAG PAN TRANNY / BILLET TORQ CONV
DP 40T 80E 120R / WARN HUBS / POWERSLOTS HAWKS
AIH REPLACEMENT, DUAL PRESSURE RELIEF VALVE
110 GAL BIO TANK/

02 BIOTDI GOLF

Reply With Quote
  #12 (permalink)  
Old 06-02-2004, 08:04 AM
bronco252 bronco252 is offline
Junior User
 
Join Date: Mar 2004
Posts: 98
bronco252 is starting off with a positive reputation.
I have at one time seen a factory wired receptacle, wired incorrectly. When the plug from the trailer was installed it blew one of the trailer light fuses that are under the hood.
Reply With Quote
Old 06-02-2004, 08:04 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Diesel > 1999 - 2003 7.3L Power Stroke Diesel

Tags
02, 03, 1999, brakes, electric, f150, f250, ford, fuse, fuses, location, relay, tow, trailer, trailers, turnstop

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 03:52 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup