Code 64
WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, 1994 Dodge Shadow, and 1994 Chrysler LeBaron. 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.