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2G What are these wires supposed to goto?

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Greatscot

Probationary Member
10
1
Aug 16, 2025
Courtenay, BC, Canada
I just bought a 1995 Talon TSi AWD with an A/T, I looked through the 1995 eclipse wiring diagrams and didn't find anything with brown/green and green yellow together. I was doing an engine bay cleanup and didn't see anything unplugged.
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I've downloaded the 1995 wiring manual, and cruise control wiring doesn't use those colors, also my cruise control is plugged in. I'll have to try to follow where those wires go. Hopefully the brown and green one doesn't terminate within the harness or change color, which has been known to occur
 
The brown with green is for the kickdown servo switch, A-98.

The other two, green with yellow and black with white, for the A/T fluid temperature sender, A-99.

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Oh HELL yea! Thanks Brian. I have the wrong wiring manual downloaded, the one I've got is only for the F5M31 "Euro spec" model specifically, whatever that is. Here, I'm adding a couple more photos of wires not connected. It's a wonder this car starts and drives AT ALL. I bought this car with no connector for the ECM CTS, just two cut off wires. The harness connector for that is $50, I'm thinking of testing the sensor against the ULTRA-POWER 5S1029 ($5 sensor, much more common) and then if the resistances are the same, I'll re-terminate the harness with this SKP SKTX3A ($3) pigtail. The gauge temperature sensor harness wire also doesn't have a simple 1/4" female spade connector, and the wire was just wrapped through the blade hole, not even going around the thing one turn. I obviously have a LOT more degreasing to do, as I didn't find sensors not connected. They must be covered in sludge. I'll have to find out what that bare wire is as well.
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It takes some time figuring out how to navigate, but this site has most of the service manuals broken down by year and is where I pulled those screenshots: https://charm.li/

Here’s the 2G ECT connector for much cheaper than that harness you found. It should be available from some of our supporting vendors listed towards the bottom of each page of the forum.
 
I found the CTS resistance / temp range in that 2000+ page service manual :hellyeah:
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Could someone take a photo of the A-89 kickdown servo and A-99 A/T temperature sensor wiring harness plugs looking at the ends? I don't have those harness connector pigtails and even sheridan doesn't list them. Apparently the A-99 isn't actually a temperature sensor but just a switch that turns a dummy light on?...but it routes into the TCM Any help would be appreciated.

I found a cheap pigtail for the ECM two pin BTW, instead of $35 listings, a Toyota tacoma / tundra / 4 runner and a bunch of Lexus cars use a different range CTS, but the same plug type...Was only $13. Replace Part Number: F42Z10884A; 1365057F00; 1797000110; 19022018
 
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