Running lights stuck on - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 02-03-2007
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Running lights stuck on

I have a 2002 Ford Ranger The Edge with a 4.0 engine. After I tried to hook up a trailer with faulty wiring, the running lights blew out. I was able to find two fuses that had blown and replaced them. Now everytime I turn my headlights on and then off again, the running lights will not shut off. Does anyone have any suggestions?
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Old 02-03-2007
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Pull the 40-pin connector under the truck below the driver's seat and check for water inside.
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Old 02-03-2007
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I really don't know but to me sounds like a sticking relay. I doubt it but because i think all the relays are solid state now a days.
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Old 02-03-2007
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Quote:
Originally Posted by Ranger1
I really don't know but to me sounds like a sticking relay.
Sometimes they heat up and melt a little bit. Then thiongs warp and contacts get stuck on or off. replace it with another one nearby it and swap. mark the one you think is faulty. then test your lights. if they work then you know its the relay.
dont forget about the swap though. you dont want a heater fan going all night.
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Old 02-04-2007
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There are no relays for the headlights or the truck running lights. However, there is one for the trailer tow connector. That's why I suggest checking for water in the 40-pin which carries the wiring for both the truck running lights and the trailer tow connector.
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  #6  
Old 02-04-2007
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Park lamp/ trailer tow relay Think its #13 and i think fuse #5 is the fuse for it. 12 is headlamps and 11 is parking lamps.
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Old 02-04-2007
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Quote:
Originally Posted by htvfd460stx
Park lamp/ trailer tow relay Think its #13 and i think fuse #5 is the fuse for it. 12 is headlamps and 11 is parking lamps.
Unfortunately, this is incorrect. If you don't know the correct info, wouldn't it better to post nothing instead of confusing things?
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Old 02-04-2007
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then correct me. what goes where?
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  #9  
Old 02-04-2007
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And sorry I though i read that it was a 2000 not 02. #46B Trailer tow is the relay i was thinking of in the PDB.
and the fuse pannel
#3 7.5A Right stop/turn trailer tow connector
#7 7.5A Left stop/turn trailer tow connector
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  #10  
Old 02-05-2007
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I was able to find the relay for the tailer tow and replaced it, but I still continue to experience the problem. I will check the other fuses and relays to see if anything else is bad. I havent checked the 40-pin connector yet for it has been artic weather here in Michigan. I appreciate your help guys and I will keep you posted as to what I find.

Deeek
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  #11  
Old 02-05-2007
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If you have a blown fuse use a voltage tester and check each side of the fuse to ground. If you want you can take it out and check where the blades of the fuse go in.

You should have 12 Vots on one side and 0 volts on the other side. You may have to have the key in the RUN possition but not running. Also do this with the lights off.

If you have 12v at both points where the fuse goes in you might have a melted wire.
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  #12  
Old 02-06-2007
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check the relay! mine did it! it was a faulty relay!
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