Pontiac specific DTC OBD2 code: P1619 Engine Oil Life Monitor Reset Circuit
Pontiac specific DTC OBD2 code: P1620 Low Coolant Circuit
Pontiac specific DTC OBD2 code: P1621 PCM Memory Performance
Pontiac specific DTC OBD2 code: P1622 Cylinder Select
Pontiac specific DTC OBD2 code: P1623 Transmission Temp Pull-Up Resistor
Pontiac specific DTC OBD2 code: P1624 Customer Snapshot Data Available
Pontiac specific DTC OBD2 code: P1625 PCM System Reset
Pontiac specific DTC OBD2 code: P1627 A/D Performance
Pontiac specific DTC OBD2 code: P1628 ECT Pull-Up Resistor
Pontiac specific DTC OBD2 code: P1629 Theft Deterrent System-Cranking Signal