Cadillac specific DTC OBD2 code: P1643 Engine Speed Output Circuit
Cadillac specific DTC OBD2 code: P1662 Cruise Control Inhibit Control Circuit
Cadillac specific DTC OBD2 code: P1628 ECT Pull-Up Resistor
Cadillac specific DTC OBD2 code: P1644 TP Output Circuit
Cadillac specific DTC OBD2 code: P1663 Oil Life Lamp Control Circuit
Cadillac specific DTC OBD2 code: P1629 Theft Deterrent System-Cranking Signal
Cadillac specific DTC OBD2 code: P1645 EVAP Solenoid Output Circuit
Cadillac specific DTC OBD2 code: P1664 1-4 Upshift Lamp Control Circuit
Cadillac specific DTC OBD2 code: P1630 Theft Deterrent Learn Mode Active
Cadillac specific DTC OBD2 code: P1646 Driver 1 Line 6