Tail lights not working - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 11-23-2009, 01:25 PM Thread Starter
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Tail lights not working

Noticed my instrument cluster lights were not working, then realized the tail lights were not working.

The headlights work both high and low, but no side lights upfront.

Checked all the fuses under the dash, they seem to be fine.

I have LED rear lights, turn signals and brake lights work fine, no running lights.

Any suggestions on what I should do next?

2001 F250 Powerstroke
Truckee, CA

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post #2 of 4 Old 11-23-2009, 07:54 PM Thread Starter
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I think it's better said that I have no running lights, no instrument lights, but I do have headlights.

2001 F250 Powerstroke
Truckee, CA

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post #3 of 4 Old 11-24-2009, 04:46 AM
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How did you check the fuses? If just visual get a multi meter and test them. I would double check the wiring in those LED lights, if they are the China made Ebay specials I would say you found your problem, look for signs of water leakage.

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post #4 of 4 Old 11-24-2009, 12:19 PM Thread Starter
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Park Lamps not Running Lights

I fixed the problem, as with many things easy when you know how.

Bad 15 amp mini fuse in the Power Distribution Box in the engine compartment.

The things that threw me off were.

The fuse was opaque so it seemed to be intact when I looked at it, but a multi meter showed voltage on one side but not the other.

The fuse #8 seemed to be for the trailer wiring. i.e. the description of the circuit was:
Trailer tow Electronic Brake Illumination, Park Lamps, Trailer tow park lamps relay coil.

I was thinking of the circuit as being part of the vehicle wiring not the trailer, and didn't realize one would effect the other.
I was thinking of the circuit as "Running Lights" not "Park Lamps"

Reflecting on it, the switch for the running lights, side lights, park lights(how ever you think of them), does have a "P" on it, so that means PARK.
I also forgot that the warning noise that the lights were on wasn't sounding, not that that would have helped much.

I think when I put in the 7 way LED tester the other day I must have blown the fuse. Looks like I'm going to have some issues wiring up the 7 pin connector, the 4 pin seems fine.

2001 F250 Powerstroke
Truckee, CA

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