in the never end search for the traction control wiring for the 4Sp I was wondering if someone could help me out with a better description of the following. I was kind of hoping that the TCC was short for "Trac Control Circuit" who knows. also if someone has a SF with the switch could you look and see what the wire colors are coming from the switch ?
1. TCC PWM Solenoid Valve Control -- Automatic Transmission Only
2. PC Solenoid Valve High Control -- Sol. A Automatic Transmission Only
3. PC Solenoid Valve Low Control -- Sol. A -- Automatic Transmission Only
4. AT ISS Low Signal -- Automatic Transmission Only
5. AT ISS High Signal -- Automatic Transmission Only
6. TFT Sensor Signal -- Automatic Transmission Only
7. TCC Release Switch Signal -- Automatic Transmission Only
the reference is from
NY-J-Bodies
...got a BCM wiring diagram you'd like to share ?? hhhmmmm
that would be very cool of you... I tried that, but you would think it was National Security. lol
Connector 3, Pin A9
Put a switch on there, the other side of the switch goes to ground, like this:
C3|A9 --------O(switch)O-----------(ground
That should turn TC off if the Cav BCM is the same programming as the Sunfire BCM.
4cyltuner.com - Information Source For 4 Cylinder Tuners
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I have a day off this Thursday and I will be able to test the pin to see if its powered or not. the BCM's do have different number according to www.car-part.com but this could just be its a Chevy part vs Pontiac part thing. i will post back my findings and let you know what I find.
thanks again for the info, this will one way or the other determine if it can be done on a Cavi w/o swapping in the BCM from a SF.
I got my ECU pin out pretty easily, so this shouldn't be much different.