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Interior lamps/Power locks fuse


Steve2150

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Guest steveskyhawk

A failed splice will cause a failure of function not a blown fuse. I have a car that had similar symptoms. The problem was that one of the push-pull rods from the door lock mechanism was rubbing on the door lock wiring. This caused a short and an overheated door lock switch. I replaced the switch and taped up the bad spot in the wire's insulation and all is well now. All I can say is take it apart and look.

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Remove the fuse the is blowing and connect a 12v test light in place of the fuse (probe end of the test light where one leg of the fuse plugs in and the ground lead where the other leg of the fuse plugs in). Then start disconnecting components and jiggling wires until the light goes out. Don't limit your search for the problem to just the door locks. Body fuse #2 powers the door locks but it also powers a lot of other items on the Reatta including the interior lights, fuel door release, and trunk release. Are any of those items still working?

Pushing the door lock switch might have just been a coincidence when the fuse started blowing but it is where I would start checking. They are all powered by an orange wire. If the orange wire in the splice under the seat shorts to ground the fuse will blow.

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Ronnie, I removed fuse #2 it shorts out as soon as I put one in. The power door lock switch on the door never really worked occassionally it would lock when pressed. This morning the fusevwas blown it was a 15 not 20, I put in a 20 that worked till I maybe pressed power lock, the other day programmed new remotes with thevgreen wire in the trunk grounded tonthe trunk latch. The other day my mechanic removed both doors to replace both window motors. The trunk release in the glove box works with the fuse out. This morning with the blown fuse the map lights in the mirror did not work now with fuse out they work. What does not work with fuse out is power locks,mtrunk lock with key, courtesy lights, mirrors.

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Steve2150, I can't explain why some things that should be powered by the #2 fuse work when you take the fuse out unless there is a wiring issue somewhere. There is no doubt you have a short somewhere blowing the fuse. You will have to start isolating components powered by that fuse until you find the problem. The flow of power from the fuse box to most, if not all, the components you name, go through splices under the seat where wires branch off to the different components. Since you say someone has been in the doors that would be where I would start looking. I don't know your troubleshooting skills but someone with knowledge of electrical circuits will have to track down your problem.

This will tell you about the splices we are referring to under the seats.

Wire Splice Repair - Reatta Owners Journal

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I hope it continues to work with no problems. However if it were me I would look at it as an opportunity to methodically find out what causes it to blow by trying different things one at a time until you see the fuse blow. Push switches, shake wires, bang on the door panels or whatever it takes to get the fuse to blow. OR you can carry a big box of fuses with you all the time...

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Welcome to the world of the Reatta.

All my cars have girl names. There is a reason for that.

Right now the Black lets me see the "show" about every third to five times I use the drivers door. Just now started working again after about a week of "No Show Show". Replaced switches and checked everything out. Or the glove box light, get it working then it decides not to work. You will find things that will work then not work.

Good luck.

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Guest steveskyhawk

To all,

For clarification: When the splices located in the racetrack or plastic conduit under the seats of a Reatta fail it is called an "open" circuit. It is nearly impossible for this failure to cause a "short" circuit. A "short" circuit is a situation where a positive wire inadvertantly contacts ground (steel body part). A short will indeed overheat a circuit and possibly blow a fuse. If Steve2150's car continually blows fuses the problem is probably not in the underseat racetrack. I would look elsewhere first. That is not to say there is no problem with the steel splices. There could be multiple faults in the wiring. In a car this age anything is possible at this point.

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  • 1 month later...
Guest shel-skii

my power door locks fuse kept blowing after I would push it, but my cig. lighter also quit working at the same time. My husband is a certified mechanic and told me to disconnect the cig lighter and try it. I did and it all works again except the lighter which I don't really need anyway. Hope this helps someone. let me know:)

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