Sephia Sedan L4-1.6L SOHC 16V (1993)
Engine Control Module: Technical Service Bulletins
A/T Controls - Adaptive Value Data Reset Procedures
Model: All Model
Group: Automatic Transaxle (52)
Date: Wednesday, February 07, 2007
Area: N. America
Automatic Transmission Adaptive Value Reset Relearn (Trans/Driveline - 018)
This bulletin provides automatic transmission adaptive value data reset (erase) and relearn procedures.
The PCM and TCM contain logic to adjust the solenoid duty and line pressure to compensate for normal clutch wear over the life of the transmission.
Adaptive value reset and relearn must be performed to provide optimum shift quality after completing the following repairs.
Replace automatic transmission
Replace PCM or TCM
Reprogram PCM or TCM
Adaptive values must be reset using procedure 1 or 2 according to model and model year (MY) as shown.
The adaptive values must also be relearned by following steps 2 and 3 after resetting.
Effective Vehicle Information
All models supported by the table displayed above.
Perform the Automatic Transmission Adaptive Value Reset Procedure as follows:
Use the GDS or Hi-Scan Procedure to reset the automatic transmission adaptive values found in the automatic transmission section menu. Follow the
steps shown in RESETTING AUTO T/A VALUES or INIT OF TCU LEARNING (Sorento - TCU SUB ROM RESET) menu sections