E67 with 6L90 TCC Circuit
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Teching In
Joined: Dec 2019
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E67 with 6L90 TCC Circuit Have an LS3 525 with the stand alone E67 PCM from GM performance. I am mating it to a 6L90 transmission and I am having trouble getting the right brake signal to the trans for TCC lockup. I have the wire that comes out of the trans and have tried wiring it will a pull up / pull down circuit as the 4L80 setups require, but the trans is not seeing the signal correctly.
Do I need to wire a signal to the E67 PCM to see this signal and then it will send to the trans? with key off it shows the pedal not pressed, but once i turn the key to the on position or running it shows brake pedal depressed all the time. Signal wire from the Transmission for brake signal has 7-8V on it when running.
Does anyone know how to wire this for the 6L transmissions? I have found conflicting info, right now it looks like the right thing to do is feed the circuit +12v to pin 7 on the X1 plug for the E67 PCM. There is currently no pin here on the stand alone LS525 harness which makes me question it.
Do I need to wire a signal to the E67 PCM to see this signal and then it will send to the trans? with key off it shows the pedal not pressed, but once i turn the key to the on position or running it shows brake pedal depressed all the time. Signal wire from the Transmission for brake signal has 7-8V on it when running.
Does anyone know how to wire this for the 6L transmissions? I have found conflicting info, right now it looks like the right thing to do is feed the circuit +12v to pin 7 on the X1 plug for the E67 PCM. There is currently no pin here on the stand alone LS525 harness which makes me question it.
Thread Starter
Teching In
Joined: Dec 2019
Posts: 3
Likes: 0
Update: Pin 7 on the E67 pcm gives me 9V, when I ground this signal I get the signal to flip on the scanner. I am unsure if this gives the transmission all it needs, because the "brake" wire that comes from the Transmission TCM doesn't give me any feedback through my scanner. The transmission wire has a constant 7V on it, but doesn't change state whether putting 12V to it, or grounding it.
Do I need to worry about the transmission wire?
Do I need to worry about the transmission wire?
