2002 Wiring Harness Fix

Nuts are put onto bolts at the factory. And, yes, we can do this just as well at home too.

Crimping isn't rocket science. It was done by hand for a good long time before the robots came along to spoil the fun. Let's not spread any more FUD without cause.

 

Putting a nut on a bolt cannot be compared to crimping. Its an apples to oranges comparison.

No FUD spreading intended just trying to help. Honestly, I'm not going to argue with you anymore.

Have fun!!!!!!

Love you maestro8!!!!!

Good luck Slim

 

What a lot of people seem to like to do is get the short subscription and download everything they can. (Some people with some programming-fu will figure out the pattern in the download URLs and write a script to slurp the rest down with less tedium, though the scripts probably only work until the next website redesign.)

The wiring diagram manual is something like 200 pages, so if it were me I'd just keep the file on a laptop or something and look up what I need, or print specific pages out, when needed.

-Chap

 

There is one huge detail missing on the crimp vs. soldering discussion you leave out. Soldering is designed as a conductive repair, not a structural repair. Crimping can be both a structural repair and a structural repair if done correctly. Soldering as a splicing technique is absolutely prohibited in any professional, aviation, industrial, medical, etc. situation in a wiring harness where both wires on each side of the solder joint are not locked downed and secured. No amount of flux will prevent an unsecured soldered wire splice from breaking eventually in a vibration environment. In cars, this can be a couple of years. In helicopters, it can be a couple of flights. I have stood on the crash wreakage of a huge UAV that fell out of the sky because of an unsecured solder joint. (One of the reasons I was asked to instruct folks on the right way to do wiring.)

In a hobby or home brew repair situation, anyone can do what they want. I certainly don't want to tell anyone what they can and cannot do. That's their decision (and responsibility). However, there is an huge amount of reliability data amassed on soldered vs. crimp repairs that cannot be ignored if someone is asking for facts about solder vs. splice reliability.

 

I'm not going to argue with you either.

 

It never was an argument, ever. It was poster asking for help with multiple answers from multiple people.

 

I'm in the "crimping is better than soldering camp".

Soldered connections are too brittle and can break with vibrations over time...that is why OEMs crimp everything.

Two things,
1) Use a good crimper, made in USA Channellock 909 Crimping Tool with Cutter - Amazon.com (also sold by most Home Depots) is the best $20 you can spend on a crimper IMHO. Every automotive toolbox should have one.
2) Heat shrink and/or tape up the connection when done do keep out moisture.

If you do these the crimps will outlast the car.

--

White with black are often grounds in Toyotaland. Check with an ohmeter from those wires to chassis.

 

No, the pattern should never change on a wire. Always a solid color with a solid stripe.

 

Hard one to answer. If you find out where at least one of the White w/Black striped wires ends up, I may be able to tell.

 

Theoretically -- No, it should not matter. In reality, some sensitive electronics are susceptible to ground loops. In a properly designed car (like the Prius) this would be unlikely. In your case, the secondary damage from whatever sliced the wires would be more of a concern.

If you can tell me what any of those wires plugs into, I can ensure that it is a ground and not something else. (I have the same model Prius and multimeter. A quick check for me. I'm going under the hood tomorrow to replace the MAF sensor.)

 

Are you afraid you'll grow hair on your palms if you look at the diagram?

-Chap

 

OK. For that harness, all wires White with Black stripes are ground. If the internet is to be avoided for shopping(?), then use the yellow pages to call various electrical supply places for uninsulated butt splices. Granger may be a good start. If they don't have them, then ask them who might. If your going to go somewhere, at least bring a picture of what you want.