Adaptation, Resetting

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. Drive the vehicle slowly. Stop the vehicle by shifting the shift lever to P range and chock the vehicle. Stop the engine then turn ignition on again.
   NOTE: Check that the vehicle does not move before operation.
2. Release the shift lock, and shift the lever to N range.
3. Check that the N position mark of the TCM is correct.
4. Use a scan tool to input the command of the N position.
   NOTE: It is not possible to input the command, unless the ignition is on, the shift lever is in N range, the engine is stopped, and the vehicle speed is 0 km/h.
5. Shift the shift lever from P to D range, then check that the indicator displays the correct position. If the display is incorrect check DTCs.
6. Reset adaptation using a scan tool.
7. NOTE: The automatic transmission must not be warmed up by a stall test.
   NOTE: Adaptation can be carried out only when the transmission has attained working temperature

   Operate the transmission to working temperature (65-110°C). Read from the scan tool.

8. 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: Shifting Pattern

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
9. Fig 2: Speed Characteristic Graph (1 Of 2)

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
   1. First Gear 
   2. Second Gear 
   3. Third Gear 
   4. Fourth Gear 

      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.

10. Adaptation of manual shifting from second to first gear is done on the road. Engage M2 with the shift lever. Accelerate to 25 km/h. Engage M1 and brake smoothly until the car is stationary. Repeat this procedure 10 times.
11. Fig 3: Speed Characteristic Graph (2 Of 2)

    Courtesy of SAAB-SCANIA OF AMERICA, INC.
    1. First Gear 
    2. Second Gear 
    3. Accelerator Pedal Position (Pedal applied) 

    Check that adaptation has had the desired effect and that shifting performance has improved.