not shifting gears on 1998 Cadillac Seville STS

the serv. eng. soon light came on and the digital speedometer will not show up/ car wont shift through gears. Had the solonoid a and b changed in the transaxle and the vehicle speed sensor. None has worked. any suggestions?

Asked by for the 1998 Cadillac Seville STS
Get the problem diagnosed by an experienced mechanic. Codes are hints as to what is wrong, it takes some investigation to be able to determine the real problem.
1 answer