How do you reset computer on 1991 Dodge Ram Van B250

Trying to shut off Maintance light

Asked by for the 1991 Dodge Ram Van B250
2 answers 1 comment
I WAS TOLD BY A MECHANIC SHOP IN CHICO, CA I HAD TO TAKE MY DODGE RAM 250 1991 VAN TO THE DEALER AND THEY HAD THE COMPUTER TO SHUT IT OFF.
try disconnecting battery if that doesnt work hook a scanner up to clear it
We have diconnected battery don't think 91 has scanner port???? I know to get codes you have to count lights with ignation