| Three key aspects to check, I think:
1. the steering module in the door (can be lack of connection in one of the directions, so no signals send)
2. main module which is under the seat may have these particular circuits broken
3. the motor in the seat, responsible for this movement, is dead.
I was replacing this "under-the-seat module" at dealer's once. And the funny thing was that he seat was stuck in a position (towards the back) where it was nearly no access to the rear bolts fixing the seat to the floor. Initially we were not sure if it will be possble at all. But went OK. |