vehicle goes into limp mode and speedometer isnt working on 2004 Lincoln Aviator

have changed out VSS and now it has a code of u1123 and scp data fault for speedometer

by in Prattville, AL on November 16, 2012
1 answer
ANSWER by , November 16, 2012
cannot find tha code but sounds like trans issues seek a free diag and est from aamco the shop prices