Question about 2003 Ford F350 Super Duty DRW SuperCab

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Rear running lights quit working.checked all fuses and relays all seem to be good ??? all other lights on the cab including head lights work?? Turn signals in rear work also including brake lights but no running lights???

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  • Master
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Hi. Since you have checked all lights and everything is working fine. Fuse and relays are also working. I guess, all you need to do is to checked the wires and the socket going to the bulb if all is intact. If everything is intact, maybe its time to replaced the bulb.

Posted on Sep 07, 2010

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  • Ford Master
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Start testing: take out the jack from the rear light assembly and verify that the 12 volts for the running lights does really arrives at the bulbs (use the body of the truck as grounding, not other wires when testing). If it doesn't then it's a wiring problem, check the wire under the dash and from the switch. If it does then check the ground wiring from the lights and the bulbs.

Posted on Sep 07, 2010

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Posted on Jan 02, 2017

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SOURCE: rear running lights quit working.checked all fuses

If the bulbs are dual element, you may just need to replace the bulbs. Otherwise I'd ckeck for proper ground, or your light switch.

Posted on Sep 07, 2010

  • 580 Answers

SOURCE: rear running lights quit working.checked

You may need to change the bulbs but you may have a broken power wire or simply a bad ground wire. Did you put anything in your trunk that could have damaged a wire. Remove the inner liner of the trunk nearest the lights & check for any broken wires. Good luck!

Posted on Sep 07, 2010

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1 Answer

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Turn signal flasher location 2003 suzuki XL-7


the FSM book covers this.
as does alldata.com, (USA cars)
checked fuses yet?
turn/back fuse.
feeds the.:
turnback relay & answer back relay (module)
a digital switch in the lever (combo) it just sends ground logic
level to the module.
so sound to me to be
one light is shorted. (or trailer wire hacks) "visual inspections!,"
or the module is bad.
if both sides are bad, seems bad module to me,
if all lights blink fully bright on hazard the lights should be good.

the module is just under the steering wheel , under those
plastic covers, the books shows simple access. to the combo
my book dont show module location
i use a rubber hose to my ear to find any relay, clicks.
if you find hazard click , (assuming it does) then same place
is the turn sigs.
its not in the fuse box, cab , i looked.


hope that helps.

alldata.com
has it.

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F150 Ford 1998 is there a fuse for a trailer and where is it located? Thank you


There are a few fuses for the trailer tow adapter.

1st, is theodd location on the 97-98, engine mini fuse panel has a 20 A fuse forthe stop / turn lamps. Have seen it covered in tape from the factory onsome 97-98 MY trucks.
This is on page 142 in the owners 1997 manual, all the revisions for the 1998 owners manual I have seen do not include this fuse box for some reason.

Download a PDF version from Ford, for the 1997 MY at :

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

This is a picture of the Power Distribution Box, additional relay box and engine mini fuse panel with the covers off. The 20A in the upper right panel with the red base, is the trailer stop/turn fuse.
3b8aa6c.jpg

The others :
1. Power Distribution Panel / engine compartment fuse panel
Fuse #1 - Trailer tow back-up and tail lamps
Fuse #16 - Trailer tow battery charge and stop/turn lamps
Fuse #28 - Trailer tow electronic brake

2. Instrument Panel Fuses ( cab fuse panel by hood release )
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1 Answer

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Maybe electrical problems, but not sure.


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1 Answer

Rear brake lights


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