Help With Transmission Connector - 93 A442F

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S

Spdstr280Z

Joined
Mar 17, 2019
Threads
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601
Location
Georgia
I have a feeling this has already been covered, but my search skills are failing me. Trying to put my junk back together, I saw and tried to clean the massive amounts of corrosion on the male 9? pin round connector on the transmission harness. While cleaning one of the wire spades broke off, and it looks like one was already missing. I'm looking for my repair options with part numbers for a pigtail or splice repair wire and maybe housing, from the experts and those who have been here. It's a 93 FZJ80 with an A442F. This is the large round connector with a rubber boot above the starter.

93-A442F Connector.webp



This is the closest I have been able tp find, but the block or ear on the side isn't there on the connector in the truck. I have not been able to find the part number on the connector so far.

90980-10775.webp


Any help is appreciated.

Thanks,

Jason
 
Bumping to get back in front of people since I posted in the middle of the night... Any help is appreciated.

Jason
 
Rifleman said:

Spdstr280Z, Check out the link below to a factory Toyota service manual. It'll answer all you're questions on the correct way to repair your wiring harness, along with part numbers.​


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Hey, really appreciate that, unfortunately that (or an older version) is where I'm looking for the connector, and I'm not sure I'm finding a match (see black and white drawing above) vs picture.

Thanks !

Jason
 
Update for anyone who may run in to this later, neither I nor my daughters with better eyes, were able to find a part number on this connector. Pulling the transmission harness from the truck verified that is this actually the harness from the "Neutral Safety (Start) Switch" / gear position indicator, and the pigtail with connectors is made with it. The broken terminals probably explain why I had no gear indicator lights. It's not a cheap fix, but I'm just buying a replacement NSS which seems to still be available OEM and aftermarket (this is a pic from Standard Motor Products at RockAuto that appears to be the OEM without the "Toyota" cast in....

NSS.webp


NSS2.webp


For what it's worth, other than a filter and shift solenoids I was trying to leave the transmission alone as kind of a stopping point for my "while I'm in there" project. Pulling the harness I realized that for me, the tranny harness was in far worse shape than the engine harness. I'm guessing a combination of heat in the tunnel and the baked on tar from oil leaking under there for years were the reasons. The wire loom is all but cracked off, several connectors broke, and the end of a transfer case switch broke off in my hand pulling the harness. Luckily I CAN find part numbers for those.

Jason
 
I think the correct male splash proof connector you're looking for may be P/N 90980-10379. Shown on page number D170/188 in the upper left hand corner of the manual i linked to above.
 
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I think you may be right. I didn't think that was it originally because the space between the top vertical bars seemed more pronounced and i could not see the middle vertical at the bottom. That's why i thought 10775 was closest. With it off the truck I can see the middle vertical recessed in the plug.

TrannyConnector.png



Thanks,

Jason
 
Jason, that's what this web sight is all about, helping one another. Cheers
 
I changed the transmission from A442 to A343 and I'm having a problem with the parking shifter wires.
 
I have the same engine/transmission. I was experiencing strange shift behavior after some engine-out work completed by the local stealership. I was snooping around and found the above mentioned connector ripped (literally) apart such that the connecting mechanism was totally sheared off and the connector had been loosely pushed together. I’ve been looking for a replacement socket for the engine side of the harness(no luck).. the shifting gremlins vanished after I cleaned, and makeshift zip-tied the connection firmly back together. The routing of the electrical harness was also wrong and I fixed it while I was in there. Long path to my question, but would a loose neutral safety switch socket produce sudden down shifting when bumped and presumably disconnected? I would hit a bump at any speed and it would downshift HARD. I’m asking because the gremlin has vanished but the O/D light is now flashing indicating an issue. I’ll read the code and update..
 
Xland said:
I have the same engine/transmission. I was experiencing strange shift behavior after some engine-out work completed by the local stealership. I was snooping around and found the above mentioned connector ripped (literally) apart such that the connecting mechanism was totally sheared off and the connector had been loosely pushed together. I’ve been looking for a replacement socket for the engine side of the harness(no luck).. the shifting gremlins vanished after I cleaned, and makeshift zip-tied the connection firmly back together. The routing of the electrical harness was also wrong and I fixed it while I was in there. Long path to my question, but would a loose neutral safety switch socket produce sudden down shifting when bumped and presumably disconnected? I would hit a bump at any speed and it would downshift HARD. I’m asking because the gremlin has vanished but the O/D light is now flashing indicating an issue. I’ll read the code and update..
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I can't think of why it would, but a damaged solenoid pigtail defintely would do this. You want part number 82125-36010. In US Toyota warehouse stock, unbelievably. Too bad the solenoids aren't.

I wouldn't futz around with fixing the connector housings. Just buy a new pigtail and be done with it for another 30 years.
 
So I got that code. Trans A442F code 61. Speed sensor #2. I’m thinking it is severed somewhere and was opening when I hit bumps. Sending a null or maybe zero speed signal to the TCU. Explains why it would momentarily unlock the trans and try to blow up my engine. With the electrical now correctly routed and zip tied down it’s likely always open and sending the null. Hence the code. Shifts GREAT with the single #1 speed sensor.
 
Xland said:
So I got that code. Trans A442F code 61. Speed sensor #2. I’m thinking it is severed somewhere and was opening when I hit bumps. Sending a null or maybe zero speed signal to the TCU. Explains why it would momentarily unlock the trans and try to blow up my engine. With the electrical now correctly routed and zip tied down it’s likely always open and sending the null. Hence the code. Shifts GREAT with the single #1 speed sensor.
Click to expand...
So I got out the multi meter, built a jumper, and started checking pins to see if I could identify the speed sensor lines and maybe recreate the intermittent open circuit. They’re both brown and one has a white stripe. I found them and, sure enough, the circuit opened when I flexed the lines up at the connection to the engine harness. I snooped around and determined I’d likely damage the harness worse trying to fish it out from above the trans. Opted instead to build a replacement line and loom/run it along the harness. Worked great. Code vanished, and trans is shifting flawlessly. I’ll plan to repair it 100% when I have the trans/motor out for 350K rebuild.

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