Wiper fuse popping when I turn on the ignition.

Justa231v6

went to the store but did get this pic online and circled where those wires come out from i am definitely in the right neighborhood.

Justa231v6

and a special note to all helping me. THANK YOU!

Axel-Breaker-Earl

I have a 1986 B2000 out back......let me go see if I can get a pic for you.

Looks like I only have 2 wires coming out of the harness at the point you circled (or close to it).......I checked with my 1989 regular cab truck also and it is the same.......

They lead to the washer pump wire terminal at the bottom of the washer fluid reservoir.......

Justa231v6

Axel-Breaker-Earl

ok that L/O (Blue wire with orange stripe) is the positive and the L which is the plain blue (but that hint of a marking every inch or so was throwing me off. I do have that at the column and will try to tone it out to find it.

thank you! i am also seeing its about 6-10" toward the bulkhead from where i found those other cut wires. mine are on the headlight side of the bracket. yours are a few inches on the cab side. now i have a clear place to dig for them

OGMB2K

Yeah, with everything unplugged, my guesses are going to start to move to the washer fluid reservoir and its electrical.

However, if that does not pan out, the next step may be to remove the dash to have easier access to the fuse panel. You're getting close ..

Removing the dash may be a bit labor intensive but can be done with just one person. I am sure either Mitch or Flake Garage on YT have videos on how to remove them. Hardest part of any of this is tracking the screws. Buy a box of ziplock sandwich bags and a couple of sharpies and go to town. Take phone pics each step of the way so you can reverse the assembly when done.

Here is a crazy thought .. Does the truck have an aftermarket radio? Does it work? I ask because often the remote turn on for radios and amps are blue wires. The wire color for this harness is primarily blue. This harness starts at the wiper motor and crosses the dash inside the vehicle. Someone may have used a ground or other power cable to power the remote antenna on the radio and created a short. I have seen stranger things.

Sorry your going through this .. My truck is an all around nightmare and is being completely restored but at least I anticipated all the headaches ..

Justa231v6

everything else i have tried works.
Radio,
Blower,
headlights
blinkers
tail lights
brake lights
stereo
i didnt try the 12v lighter
room wiring works
Dash lights work
clock retains memory

I have certainly learned a lesson about buying something that was not 100% stock. i am cleaning up others mess, fortunately/unfortunately this is the only real issue i am coming across. with everything at the column multiswitch disconnected it still pops. which leads me to believe its on the input side. of the steering column. I can then do a quick bypass to see if it works. if it does i have found my work around. since everything i see under the column appears to be un molested (the things remaining after my cleanup) i presume it is or was a chafing issue which is now grounding. however i am now youtubing if thats even a word continuity testing and trying to follow every input wire i can find that matched the L (blue) color.

in looking at the diagram above, tracing the path, it looks like there is a wire going to the washer AND the multi switch at the same time. though i am no auto electric guru. I will note though i am trying to keep all of my questions to this forum to help rebuild the database of answers for all the future owners or these trucks.

kz6fittycent

Axel-Breaker-Earl I would open your wire loom up right there and see what you have under the loom. You're going to need to open that eventually to repair the cut wires properly.

10000000000000000000000000000000000000000000000000%

Justa231v6

Well i did it.... thank you to everyone especially @Axel-Breaker-Earl and @Cusser who posted pictures both the wiring diagram AND a picture of a lead location. found it and saw it was routed to the brake connection, yes the one that should go to the reservoir and it was joined together since they both "fit". i saw the last few inches of cable was yes you guessed Blue with an Orange line and a Blue with a smudge of yellowish coloring. unplugged and my issue is resolved with the fuse blowing.

now to figure out why the wiper motor isn't working. however i am confident it is likely an issue with the motor itself.

anyone with a working motor able to unplug it and just give me an idea with a test light which ones are negative and which are positive? this way i can confirm mine and then put a power lead to the motor and see if it spins up. just feels faster than trying to compare mine to what i see on a wiring diagram, i am so stressed out about reading them. I will be putting my truck back together for the next few nights with how deep i am under the dash for such a stupid thing.

Axel-Breaker-Earl

Awesome! I'm glad you found the issue that was blowing the fuse! Did you take a picture of what you FOUND? If you did, post the carnage!

Justa231v6

it was actually one of the previous owners who put the washer pump end to the same end the reservoir pigtail goes as they had the same connector Male/Female. and it was grounding.

sadly my interior is about 6 bolts from the dash being out. i threw in the towel for the night as i needed to rest. i spent 6 straight nights at 4 hours+ a night working on this and am so tired.

now i just need to figure out if i can find a cheap wiper motor to test.

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