I have a 99 U320 with the above mentioned shift pad and I am experiencing down shift problems. D-N-R-Econ- Upshift works fine.
I have problems with the manual downshift, pushing once sometimes drops two gears at a time, not good. I have searched and found where other members have taken it apart and cleaned the contacts with an eraser and alcohol but my shift pad is different than the ones I have seen pictured. I cannot figure how to remove the pc board from the housing. If someone has experience with cleaning and removing this board I am all ears.
I do know about Transmission Instruments.com and if I can't clean this myself I will ship it to him.
Thanks for any help you might offer me.
Dennis