Adaptation, resetting: Adjustment

After changing or updating automatic transmission, TCM or software, the old adaptation data must be removed and a new adaptation performed as described below.

1. Reset adaptation using Tech2 by adapting the values at Automatic transmission - Adjustments - Reset.
2. Operate the transmission to working temperature (65 - 110°C). Read from Tech2 menu "Read values" TCM.
   IMPORTANT: The automatic gearbox must not be warmed up by a stall test.
   NOTE: Adaptation can be carried out only when the transmission has attained working temperature.
3. Adaptation for shifting N -D and N-R is carried out with the handbrake applied. If the procedure is done in the workshop, connect an exhaust ventilator, start the car and run at idling speed. Shift from N to R. Keep R engaged for more than three seconds, then shift back to N. Repeat the procedure 5 times. Then shift from N to D the same as above, repeating the steps 5 times.
   Fig 1: Adaptation For Shifting N-D And N-R Position

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
4. Adaptation for shifting up and down is done by driving on a road. Engage D and accelerate up to just over 50 km/h with the accelerator pedal at a constant position (approx. 15 - 20% depressed) until 4th gear has engaged. Brake until the car is stopped. Acceleration up to 50 km/h must take more than 30 sec. and braking must take more than 14 sec. Repeat the above 5 times.
   Fig 2: Adaptation For Shifting Up And Down Position

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
5. Adaptation for manual shifting from 2nd to 1st gear is carried out on -road. Engage M2 with the selector lever. Accelerate to 25 km/h. Engage M1 and brake smoothly until the car is stationary. Repeat this procedure 10 times.
   Fig 3: Adaptation For Manual Shifting From 2nd To 1st Gear Position

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
6. Check that adaptation has had the desired effect and that shifting performance has improved.