How To Repair A Gm Abs Sensor Connector

As a motorcar possessor who takes pride in doing his own repairs, my articles focus on helping other vehicle owners handle DIY projects.

Cleaved Wire Harness Connectors

In all my DIYs, I always stress the need to be gentle when removing these clips. And sure enough, when I went to take pictures for my temp sensor article, I got a fiddling too eager and broke the prune right off.

I had also broken one of the scroll clips many years ago, merely the wire harness stayed on simply fine so I never worried about it. This time I was not then lucky. (If you do have a broken clip on the ringlet connection. and practice not experience like spending $30 and doing this repair, you can e'er employ a zip necktie to continue it in place).

This DIY covers how to replace the connection housings from the wires to the sensor, or coil, or whatever office you happened to pause off the connection to. The part number should be the aforementioned for MKIV and the newer MKV Jetta and GTI models as well equally Audis and Passats. But, as ever, make sure you lot verify the part number with your local dealership before you purchase the part.

I will exist doing the repair hither on a temperature sensor plug, but it will exist the same operation for the other connections as well. If I always break down and buy a new coil connection, I volition upload pictures for that connector besides.

Needlenose pliers, replacement part, and paperclip for replacing broken wire-harness clips and connectors. — Needlenose pliers, replacement office, and paperclip for replacing broken wire-harness clips and connectors.

This DIY tin be done with household items. If you programme on going all out, you can buy a specialty tool called a "Terminal Release Tool" for $70 to $110 that has the same result every bit using a standard newspaper clip.

A paper clip
Hammer or vise grips
Needle-olfactory organ pliers (optional)
Small flathead screwdriver
Replacement part

Depending on which clip you broke, the near common housings are part numbers 4B0-973-724 and 4B0-973-712.

4B0-973-724 is the connection for the Mass Air Menstruum Sensor, coils, and the like, and runs around $30 each from the local dealership.
4B0-973-712 is the smaller plug used for the Temperature sensor, AIT sensor, Throttle Body and like connections. That part volition run about $12 at the dealership.

These plugs can likewise be ordered online from ECS Tuning for about $xviii and $9.

Let'south MacGyver This B!!

Yes, welcome back to the '80s. If yous decided against the hundred-dollar tool, so it's fourth dimension to make your own out of a paper clip.

For the larger connections (MAF or coil), utilise a big newspaper clip; for the smaller connections (temp sensor), use a pocket-sized paper prune. Start by flattening the ends with a hammer or vise grips. Then curve the clip around till the two ends are a few mm apart. Look at the "tools" picture above for reference. Yep, that's it. So save your pen and rubber band for some other twenty-four hours, my young man MacGyver fans.

How to Replace Cleaved Wire Harness Connectors

To be honest, this is a quick and uncomplicated DIY, but it is a hurting in the barrel the outset time you practice information technology. If you are irresolute the larger (MAF or scroll) connectedness, it should be a little easier.

Step 1. The first thing y'all want to do is remove the pink/majestic clip inside of the harness. Information technology slides out very easily, so utilize very piffling pressure. Information technology likewise helps to identify some newspaper under any connector you're working on, so yous don't drop these picayune pieces into the engine bay.

how-to-replace-broken-wire-harness-clipsconnectors-audivw-diy

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Step 2. The black hose that covers all the wires has a picayune clamp on it to keep it tight. It really helps later on to take this off and pull out the wires. Yous tin remove information technology easily with your fingernail or a pocket-sized screwdriver. See below.

Step 3. Take your bootleg tool and wedge it in on both sides of the connection pivot (come across below). The trick is to get it in deep enough to bend downward the niggling tabs that are belongings it in place. I'd estimate virtually a one-half centimeter in.

Step four. With your tool in place, pull on the wire from the back side till it releases. Information technology will accept a piddling persuasion, merely don't rip it out with all your forcefulness (see diagram below for a amend example of how the wire connections look). You're trying to release it without breaking off the tabs. You lot tin can also use your needle-olfactory organ pliers to get a skilful elongated grip on the wire.

The tabs or prongs are in in that location to hold the wire in place. To release the wire from the harness, y'all push or bend these tabs downwardly slightly. These fiddling tabs can be advisedly opened back up with a penknife or small Swiss regular army knife before they are re-inserted into the new harness. Don't bend them too much, equally they are thin metal, and break easily like everything else VW/Audi makes. If you lot practise interruption the tab off of one side, don't be overly concerned; it volition nevertheless stay in place one time inserted into the harness.

Footstep v. Once all the wires have been released (two or 4, depending on the plug) you can bend back the tabs slightly, then the wire will hold firm in your new connector. Yous can use a penknife to slightly curve them out. The final photo shows the tabs, although the resolution is not that great.

Footstep 6. Push the pins back into your new plug with your fingers, or with pliers if that helps. Make sure you write down which color wires come out of each pigsty. The plug harness volition exist labeled with 1, two, three, and 4.

Wire Harness Diagrams

These are some drawings that should help with understanding the pin connector and keeping the wires in proper guild.

For the temperature sensor, the colors are:

Regal
Chocolate-brown with white stripe
Green with yellow stripe
Brownish with blue stripe

Even on my own car, I have different colors going to the 1, 2, 3, 4 on the curl, and then make sure you lot write down what color is going to what connection before you pull out the wires.

Red, blue/white
Brown/tan, black/ruddy
Blueish, dark brown/yellowish
Tan/yellow

This article is accurate and true to the best of the author'due south knowledge. Content is for informational or entertainment purposes simply and does not substitute for personal counsel or professional person advice in business, financial, legal, or technical matters.