'05 Ford 500 with OBDII code P2544

Question

I own an '05 Ford Five Hundred and the check engine and service (wrench) lights are on. I hooked it up to a diagnostic reader and it gave me the code P2544. Need some info on this, can't find anything on the web... Thanks!

Answer 1

P2544 Harsh or erratic upshift /downshift

This is a torque management request input signal, when you get this code the transmission may go into limp home mode stratagy, with a wrench light illuminated, this happens when the PCM recieves incorrect operating engine condition, The solution to resolve this is to have the PCM (powertrain control module) and the TCM (transmission control module) reprogrammed, This is a warranty issue listed in the emission warranty, TSB 05-1-6