Digital speedometer display inop. tap on dash & it comes on
open the hood and find the speedometer cables according to your auto's manual, check to see if they are securely connected to the ports on back of speedometer. if this doesn't work. find the function button front of speedometer press and hold while starting engine, will enter function mode,press button repeatedly untill you come to auto. press and hold button untill "-" appears then release button , unit will show on screen,wait untill a line of zero's appear on screen then drive around untill you go over one mile, stop the car and press the function button again,the speedometer is now recalibrated this usually fixes many errors
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