Lincoln Town Car speedometer calibration

This page contains information on how to roll back or calibrate speedometer on Lincoln Town Car (1991-1995) manually. You will need our TachoSoft Mileage Calculator and programmer. 

In Lincoln dash the mileage is stored in 68hc11e9. Right side plug on top is the one you use. Bottom row starting from left to right, skip the first two, the next one will be ground then 12+ then you should have two left over from the end.