Resetting Adaptive Parameters

Because the PCM/TC has the ability to adapt to various transaxle conditions, it is necessary to reset the adaptive parameters after certain repairs have been performed. The adaptives can be reset using the service stall system (SSS) or using a Scan tool.

The adaptives should only be reset after the following repairs have been made:
- Replacing a transaxle.
- Replacing a line pressure actuator.
- Transaxle overhaul when new clutch plates are installed.
- Replacing a valvebody.
- Replacing the PCM for a transaxle related failure.

NOTE: When replacing the PCM for an engine related problem the transaxle adaptives should be transferred from the old PCM to the new PCM.
After performing a repair, the vehicle must be driven to allow the adaptives to learn new shift times and pressures before returning the vehicle to a customer. Refer to Learn-in procedure. Automatic Transaxle Controls

NOTE: Anytime a Powertrain Control Module (PCM) is replaced, a crankshaft learn procedure must be followed.