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Old 02-10-2010, 03:51 PM
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Default 3.0 to 3.4 A/C wiring

I am stuck on the wiring of the A/C from the 90 4Runner system to the 96 4Runner ECM. The 96 ECM has terminals ACT and AC1 while the 90 EMC has terminals A/C and ACV. Both sets come from the A/C amplifier to the ECM.

Any experts on which corresponds to which? I have tried figuring it out from the A/C wiring diagrams, but I still don't know for certain. Thanks, T
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Old 02-10-2010, 04:34 PM
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I MIGHT happen to have a 1990 4runner elecrical diagram. I know I have it for my 89...
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Old 02-10-2010, 06:29 PM
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Originally Posted by leiniesred View Post
I MIGHT happen to have a 1990 4runner elecrical diagram. I know I have it for my 89...
Thanks, I have that. I just cannot reconcile the difference in the terminals on the ECM and I don't want to hook up to the wrong one. Terry
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Old 02-10-2010, 09:42 PM
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If I could help... I would.
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Old 02-11-2010, 01:04 PM
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Stumbled on this Terry...

http://www.pirate4x4.com/forum/showp...15&postcount=1

Specifically.....A/C Solution:
You need the electronic card from the 3.4L A/C cooling unit located behind the glove box in the donor vehicle. With the 3.0L configuration the card receives a signal from the negative side of the ignition, in order to work now it will now need to receive a positive signal from the ECU instead. You will need Toyota wiring diagrams to figure this one out."
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Old 02-11-2010, 01:22 PM
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And don't forget about the online Hilux/4Runner/Taco/FJC/Tundra factory manuals...

http://www.ncttora.com/fsm/index.html
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Old 02-11-2010, 06:08 PM
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Quote:
Originally Posted by Uncle Ben View Post
Stumbled on this Terry...

http://www.pirate4x4.com/forum/showp...15&postcount=1

Specifically.....A/C Solution:
You need the electronic card from the 3.4L A/C cooling unit located behind the glove box in the donor vehicle. With the 3.0L configuration the card receives a signal from the negative side of the ignition, in order to work now it will now need to receive a positive signal from the ECU instead. You will need Toyota wiring diagrams to figure this one out."
Thanks, Matt. I will dig into it. Terry
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"95" FZJ-80 - "White Top" F&R ARB Lockers, Slee F&R Bumper & Sliders, Warn Winch, 35s, Safari Snorkel, Low Range Gears, P/T Kit

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Old 02-11-2010, 06:19 PM
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Thanks, Matt. I will dig into it. Terry
Matt is something you wipe your feet on...I'm Kevin.
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Old 02-11-2010, 06:30 PM
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Matt is something you wipe your feet on...I'm Kevin.
At least he didn't call you Martin
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Old 02-11-2010, 09:09 PM
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Quote:
Originally Posted by Uncle Ben View Post
Matt is something you wipe your feet on...I'm Kevin.
Just wanted to see if you were paying attention....
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"95" FZJ-80 - "White Top" F&R ARB Lockers, Slee F&R Bumper & Sliders, Warn Winch, 35s, Safari Snorkel, Low Range Gears, P/T Kit

"13" Taco 4X4 Extra Cab, Firestone Air Ride, Airstream tow vehicle - "Daily Driver"
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