Quote:
Originally Posted by CaerYnArfon
Tannaton, do you know if this can be set using the cheapy Vida Dice? just got on ein the post today
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Yes it can. You initiate the process by communicating with the TCM after the car has been thoroughly warmed up.
** Note - not all XC90's will hit 4th gear when you hold the revs at 1,400 for the first part **
You do this:
AW55-50 Shift Adapt Procedure
The AW55-50 transmission uses adaptive learn technology to adjust shift pressure and line
pressure which controls the feel of up shifts, down shifts, the neutral control function and
garage shift engagements. Performing the adaptive learn procedure is necessary whenever the
transmission is rebuilt or replaced, the valve body is replaced or the TCM is replaced. The TCM
is always adapting, but at an extremely slow rate. To quickly clear and relearn the adapts, the
TCM must be placed into the adaptation mode.
Performing the adaptive learn procedure on a Volvo requires a VIDA, (Volvo factory scanner),
to put the TCM in the “Control Module Adaptation“mode.
The TCM will not go into adaptation mode unless the transmission oil temperature is between
150F and 230F. The TCM will not adapt in Geartronic or Winter Mode. While the TCM is in the
Adaptation Mode, the orange triangle in the center of the instrument cluster will flash when
the adapt is complete for a particular shift.
To adapt the up shifts:
•Use the “D” position. Accelerate from a stop at a light throttle, about 1400 RPM’s, through
the gears to fourth, keeping the throttle steady. Come to a stop and repeat until the orange
triangle flashes after each shift.
•Next, accelerate from a stop though all five gears at a throttle opening of about 1800 RPM’s,
keeping the throttle steady. Come to a stop and repeat until the orange triangle flashes after
each shift.
•Finally, accelerate through the gears at a throttle opening of 2500 RPM’s. Repeat until the
orange triangle flashes after each shift.
To adapt the down shifts:
•Use “D” position. While driving at about 45 MPH in 5th gear, release the throttle and lightly
brake to a stop. Repeat this procedure until the orange triangle flashes after each downshift.
To adapt the garage shifts:
•With the engine idling and the brake pedal depressed, shift to “N” and wait five seconds, now
shift to “R”, wait five seconds and shift to “N”. Repeat this procedure until the orange triangle
flashes.
•Repeat the above procedure for “D”.
To Adapt the Neutral Control Function:
Note: Not every Volvo has the Neutral Control Function.
•While driving at about 5 MPH in “D”, slowly come to a stop. Repeat this procedure until the
orange triangle flashes.
•With the engine idling and the brake pedal depressed, move the shifter to “D” and wait about
25 seconds for the orange triangle to flash. This lets you know that the TCM is ready to adapt.
Once the flash is seen, release the brake and allow the vehicle to crawl forward. Repeat this
procedure until the orange triangle flashes just after the brake pedal is released.
Once all of the adapts have been learned, turn off the ignition and the TCM will exit the
adaptation mode.