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Lots of codes

2610 Views 54 Replies 4 Participants Last post by  96C3500
Just had the codes pulled from a real code reader, I'm happier than you would probably think.
here goes
0501 - vss out of range
0722 - vss not working
0741 - tcc issue
0742 - torque converter not locking up
0751 - shift solonoid (front)
0756 - shift solenoid (back)
0758 - shift solenoid 2-3
1870 - tcc
1871 - ecm doesnt know what gear to be in
1875 - 4wd low switch circuit (I have a 2wd).


Soooooooo
Anyone know where the transmission / computer get their grounds from? I am certain I have a ground issue, a massive one. I have fss circuit issues, IAT circuit issues, a massive number of issues. Either a rat chewed wires, or there is a massive ground issue.

TIA
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Thank you

I plan on testing pin E and M too for power and ground
After a little searching on FB
Im thinking its the ignition switch
Aupposedly the transmission is wired through it
I had lots of transmission solenoid codes and no gear shifts, some times, like a drive home in first gear. The ignition switches are garbage 1995 and on. No codes and no shift failure after replacing the ignition switch. That was my 1995 truck, not showing below, through a fault of this site.
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That was my 1995 truck, not showing below, through a fault of this site.
Your 95' will show if you click on the down arrow on the far right side of the signature. then it will expand down a bit to show
(y)
Your 95' will show if you click on the down arrow on the far right side of the signature. then it will expand down a bit to show
(y)
Thankyou, I just remembered that, and tried it, but it is likely that people would not know to click there, and wonder why I am commenting about a vehicle not on my list.
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I had lots of transmission solenoid codes and no gear shifts, some times, like a drive home in first gear. The ignition switches are garbage 1995 and on. No codes and no shift failure after replacing the ignition switch. That was my 1995 truck, not showing below, through a fault of this site.
Thank you very much for the reply, makes me feel better, my wick has been burnt quite a while
I will be changing the ignition switch first thing in the morning
God Bless
Getting a simple fix is often clouded by complicated suggestions, I hope this works for you, the plastic on the column is a pain to remove, unlike the 1994, where the ignition barrel is accessed by removing the steering wheel and the switch that is bullet proof is under the dash.
Getting a simple fix is often clouded by complicated suggestions, I hope this works for you, the plastic on the column is a pain to remove, unlike the 1994, where the ignition barrel is accessed by removing the steering wheel and the switch that is bullet proof is under the dash.
It was a project
I already swapped the lock cylinder
And FSS
And lift pump and OPS and filters and relays and fuses and ran tons of grounds and vssb and followed all the wires, literally, and ya, I’ve put my time in.
So today is ignition switch and multi-function switch

then hopefully I can get down the highway to take my daughter hunting
I hope that this will be the cure, thankyou for the feed back. Taking family hunting, sounds great, I enjoyed that as a kid and older.
No go
New ignition switch
New VSSB
New multi-function switch
New lock cylinder
New FSS
New filters
New lift pump
New batteries
New tires
New fluids
New OPS
New brake switch
New APPS
Ran a TON of new grounds
new radio
New climate switches
New fuses
New relays
Cleaned the turbo
New CDR
Solenoids test good
Vss’s test good

Absolutely no changes
Speedo is 150% faster than actual speed
No overdrive
TC is not kicking in at all

I’ve followed almost all wires

I can’t figure out how tranny gets ground

computer is not reading vssb either

computer has gotta be in default mode due to 150% speedo and the code no gear ratio selected

I’m sooooo lost
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Sounds like a nightmare, info says that you don't have a vssb. I had the help of being able to swap parts from the other vehicle that was functional, to exclude the erronious codes, like vss, and tps, even swapped the ecm to exclude failure of it. I have no more ideas. It is interesting that both of my vehicles have rebuilt ECMs.
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Sounds like a nightmare, info says that you don't have a vssb. I had the help of being able to swap parts from the other vehicle that was functional, to exclude the erronious codes, like vss, and tps, even swapped the ecm to exclude failure of it. I have no more ideas. It is interesting that both of my vehicles have rebuilt ECMs.
Yesterday I noticed there is a ground wire
Passenger side
Goes from battery to fender wall and keeps goinf
Its bad

I’m going to follow that tomorrow
Sounds like a nightmare, info says that you don't have a vssb. I had the help of being able to swap parts from the other vehicle that was functional, to exclude the erronious codes, like vss, and tps, even swapped the ecm to exclude failure of it. I have no more ideas. It is interesting that both of my vehicles have rebuilt ECMs.
I have a vssb
I have 2 actually
A new one
And the factory one I soldered the circuits for 4.10 gears in hopes that helped the speedo
No change
The PCM in the photo in post #11 is for a 4wd.
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The PCM in the photo in post #11 is for a 4wd.
How do you know that?
And really good eye
The PCM in the photo in post #11 is for a 4wd.
This website says its the correct computer number
Light Product Font Screenshot Line
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I have a vssb
I have 2 actually
A new one
And the factory one I soldered the circuits for 4.10 gears in hopes that helped the speedo
No change
I was seeing vssb end in 1995, but it is for gassers.
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I was seeing vssb end in 1995, but it is for gassers.
I grounded the wire which runs to the fender well on the passenger side, as well as the ground wire which runs behind the bumper and grill. I followed almost all wires necessary, except the ones which run behind the stereo.

Question, what is the cheapest way to see if the computer is sending a signal to the transmission to see if it is locking up?
The best way is use the ECM from a running vehicle to see if it cures the problem.
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The best way is use the ECM from a running vehicle to see if it cures the problem.
I feel confident its the wheel in the tranny or the vss
Finally!
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