Originally Posted by Desert Hiker
My Cherokee Trailhawk has the ADII transmisison. The shifting is OK but not excellent. There are TSBs addressing this including an evaluation process and then a reset of the Adaptation Memory Cells for relearning. The reset includes using the dealer's wiTICH kit + laptop, along with a detailed post-reset driving procedure. Others here have reported an improvement from reset after tranny/engine breakin.
Somewhere there was an "alternative" DIY procedure which involved pulling the TCM fuse (30 minutes +) followed by some other steps. Where can I find detailed steps for this DIY alternative? I may want to try it rather than the dealer's full reset program.
Do not do this DIY procedure!
#1. By disconnecting your battery you may actually erase/reset any error codes that are stored. The dealer needs them.
When you go in to the dealer he will scan your vehicle. It will tell him if updates are available for your vehicle. Some of these updates are triggered by codes set off by your vehicle.
The dealer can not do these updates unless he gets a positive scan or in your case your shifting is outside their
judgement of normal.
#2. Depending on your mileage your vehicle may have more learning to do. It all depends on the type of driving you do.
Short low mileage drives are horrible for AL. It does not allow the system to learn and save the data.
A lot of stop and go and mix driving works best.
All the TSB does is help the AL process along. If it is all screwed up they also need to erase the memory and manually reset the the AL (2nd TSB) with the laptop drive. If your software is at a certain level all they need to do is a 20 minute flash update. It will help considerably any issues you are having.
#3. You have a warranty on this vehicle! I would recommend that you visit the dealer and talk about your concerns. He is in the best position to take care of you, not the forum.
Playing with the battery can cause more issues with the electronics if not correct.