Computer problem
1988 Chrysler New Yorker 6 cyl Front Wheel Drive Automatic
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Sometimes after I turn the engine off and take the key out of the ignition the overhead computer dings and say low oil pressure. Why? Also using the ignition key method to display codes it continually displays a code 12 which indicates a problem with the stand-by memory circut. Direct battery input to controller disconnected within last 50 key-ons but, the battery has not been disconnected recently.