Control of the transaxle is accomplished by fully adaptive electronics.
Optimum shift scheduling is accomplished through continuous real-time sensor feedback information provided to the Powertrain Control Module (PCM) or Transmission Control Module (TCM).
The PCM/TCM is the heart of the electronic control system and relies on information from various direct and indirect inputs (sensors, switches, etc.) To determine driver demand and vehicle operating conditions.
With this information, the PCM/TCM can calculate and perform timely and quality shifts through various output or control devices (solenoid pack, transmission control relay, etc.).
Disconnecting the battery will cause PCM and TCM to lose memory
and will cause Driveability concerns
TCM have to relearn shift and recalibrate itself
the use of a scanner is needed to perform a quick learn procedure
Friday, November 13th, 2009 AT 8:57 PM