So you used the shift lockout override and got it out of park. Then it started shifting strange? From the description it could be the wiring, or the shift selector module. They get flaky if any moisture or dirt gets into them.
Do you mean code
P0470 - Exhaust Pressure Sensor Malfunction
P0740 -TCC stuck on
OR? As there doesn't appear to be any 4700 code in any of the modules.
Friday, March 31st, 2017 AT 2:09 AM