Having problems finding the problem with my transmission, so far i have replaced PCM, checked/cleaned all grounds, continuity tested wiring from PCM to trans. Verified i have 12 volts w/key on at trans connector, ohm checked 1-2, 3-4, 3-2, TCC PWM and TCC pressure solenoid, all within specification. Codes i have are as follows.
PO740 TCC OPEN
PO753 SHIFT A
PO758 SHIFT B
PO785 SHIFT/TIMING
P2761 TCC PRESS CONT OPEN