Buick specific DTC OBD2 code: P1627 A/D Performance
Buick specific DTC OBD2 code: P1643 Engine Speed Output Circuit
Buick specific DTC OBD2 code: P1662 Cruise Control Inhibit Control Circuit
Buick specific DTC OBD2 code: P1628 ECT Pull-Up Resistor
Buick specific DTC OBD2 code: P1644 TP Output Circuit
Buick specific DTC OBD2 code: P1663 Oil Life Lamp Control Circuit
Buick specific DTC OBD2 code: P1629 Theft Deterrent System-Cranking Signal
Buick specific DTC OBD2 code: P1645 EVAP Solenoid Output Circuit
Buick specific DTC OBD2 code: P1664 1-4 Upshift Lamp Control Circuit
Buick specific DTC OBD2 code: P1630 Theft Deterrent Learn Mode Active