Hey guys, im in need of some info. Hoping someone on here know the answer.
I have a 86 fiero gt with a LS4.
- Motor and trans are out of a 2006 Impala ss/ 4t65e-HD trans
- E40 ECU
- A4 TCM (think most are the same)
I have no BCM (body control module)
So the signal from the brake switch to disable the TCC soleniod is not there. I did some research on the signal from the Brake to the BCM, Appears to be either 12 vdc or 5 vdc which is wire to be always hot until the brake is press. which make sense so if the voltage is lost the tcc will not enable. Anyways that dont really matter cause i dont i have a BCM as i mentioned. The signal from the BCM to the TCM and ECU is what i need. Either ground or 5 vdc.

PLZ help. Have a drag and drive coming up and would love to have it working for highway cruising.