4wd problem

[MrIgor]

Hi, I am new to this forum. I own a black hummer h3. Offorad wheels, grill guard, and steps. for now.

I am having a problem with the 4x4. traction failed, stab sys service, service 4x4... I cannot figure out if it is the TCCM or electric motor... The buttons blink when i press them but but motor makes no sound. I check with volt meter the BLACK and RED wires on motor they have no power when pressing buttons. I am assuming it is the TCCM. Does any of the members have a TCCM they want to sell?


If i plug in a new TCCM, will all error go away? do i have to take battery terminal off?