Hi all, I own a 2005 X3 with 130,000 miles, the other day the DSC light came ON and has been that way. Only that light and no clicking noise. I took the transfer case actuator out last night to check the internal gear (known to be weak) but the gear looks like new. What kind of scanner/cable do I need to be able to read the codes from the transfer case module? Just want to make sure it is not any other sensor before I bite the bullet with a new actuator, since I'm not able to test the servo motor. Thanks!