Oldsmobile specific DTC OBD2 code: P1639 5 Volt Reference 2 Circuit
Oldsmobile specific DTC OBD2 code: P1638 Generator F-Terminal Circuit
Oldsmobile specific DTC OBD2 code: P1637 Generator L-Terminal Circuit
Oldsmobile specific DTC OBD2 code: P1636 PCM Stack Overrun
Oldsmobile specific DTC OBD2 code: P1635 5 Volt Reference 1 Circuit
Oldsmobile specific DTC OBD2 code: P1634 Ignition 1 Power Circuit Low Voltage
Oldsmobile specific DTC OBD2 code: P1633 Ignition Supply Power Circuit Low Voltage
Oldsmobile specific DTC OBD2 code: P1632 Theft Deterrent System-Fuel Disabled
Oldsmobile specific DTC OBD2 code: P1631 Theft Deterrent Start Enable Signal Not Correct
Oldsmobile specific DTC OBD2 code: P1630 Theft Deterrent Learn Mode Active