Code 64
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
DRB displays FLEX FUEL SENSOR VOLTS TOO LOW. Condition is: methanol concentration sensor input less than minimum acceptable voltage.
DRB displays FLEX FUEL SENSOR VOLTS TOO HIGH. Condition is: methanol concentration sensor input more than maximum acceptable voltage.
DRB displays LOSS OF FLEX FUEL SENSOR CALIBRATION SIGNAL. Condition is: Powertrain Control Module (PCM) did not detect a flex fuel calibration signal from methanol concentration sensor at key-on.