Tail Light/Back Up Light Fuse Location - Ford Powerstroke Diesel Forum
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Old 09-26-2011, 05:04 PM
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Tail Light/Back Up Light Fuse Location

Gentleman,

This past weekend I decided to upgrade the firmware on my SCT and retune the truck, in addition to this I changed the serpentine belt and removed both batteries to recondition them before the winter. After getting everything back together the truck runs so far so good except my rear tail lights and back up lights do not work. I have brake/turn signals but no tail lights/back up lights; can anybody tell me exactly what fuse may be out location/number? I looked at the manual but couldn't find any designation stating "tail lights", could something else be wrong here other than a fuse?

Thanks for the help

Regards,
Tar
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Old 09-27-2011, 02:24 AM
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Any Takers?
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Old 09-27-2011, 03:12 PM
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Stop lights: Battery Junction Box (BJB) 12 (15A) (high mounted stoplamp)
13 (5A) (stoplamp switch)

Backup lights: BJB fuse 33 (20A), or Relay 75 (5A)
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Old 09-28-2011, 07:12 PM
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So I checked the fuses and they all seem to be fine. What is the best method to test a relay? If the relay is bad where could I get one? If the relay isn't bad, what else may be going on here? Like I said I have brake/turn signals but no tail lights or reverse lights.

Thanks
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Old 09-28-2011, 07:28 PM
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Quote:
Originally Posted by MadDogz View Post
Stop lights: Battery Junction Box (BJB) 12 (15A) (high mounted stoplamp)
13 (5A) (stoplamp switch)

Backup lights: BJB fuse 33 (20A), or Relay 75 (5A)
Sorry, I misread for tail lights. Parking, Rear and License Plate Lamps:
BJB fuse 54 (5A) (mirror lamps)
SMJ (Smart Junction Box) fuse 22 (15A) (Parking lamps)

To test a relay, just swap it with other known working one.
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Old 09-30-2011, 06:40 AM
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Frustration!!! See attached Picture

O.k. guys so I checked all the fuses, everything seems to be just fine; I have attached a picture of what turns on and what doesn't regarding the tail lights; like i said i have brake lights and turn signals. Anybody have any issues with the recon tail lights and what I am describing here? any other suggestions?
Attached Files
File Type: pdf F250 Tail Lights.pdf (50.9 KB, 145 views)
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Old 10-04-2011, 06:11 AM
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Guys any help on this one?
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Old 10-05-2011, 01:42 AM
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Just a thought I had the same problem on my 2007 F150 and I kept thinking it was a fuse or wiring. Turned out it was the stop lamp switch on the brake pedal.

I figured it out when I realized I could not disengage my cruise control and started connecting the dots. I'm not sure if the set up is the sae on the Super Duty or not.

Hope this helps
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Old 10-05-2011, 02:48 AM
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Thanks for the suggestion, but I do have brake lights, and turn signals. Does the stop lamp control rear tail lights and back up lights? These are the two characteristics that I don't have.

Thanks
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Old 10-05-2011, 10:04 AM
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I am sorry, I did read that you had brake lights, I don't know what I was thinking. Maybe someone else will have an idea
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