Cadillac Seville speedometer calibration

This page contains information on how to roll back or calibrate speedometer on Cadillac Seville (2000) manually. You will need our TachoSoft Mileage Calculator and any serial programmer.

In Cadillac dash the mileage is stored in 93c46 memory chip. Green plug A1 and A3 is +12V B6, B7 is GND Wait for 30 seconds when you power up.