GMC specific DTC OBD2 code: P1610 Loss Of PZM Serial Data
GMC specific DTC OBD2 code: P1628 ECT Pull-Up Resistor
GMC specific DTC OBD2 code: P1644 TP Output Circuit
GMC specific DTC OBD2 code: P1611 Loss Of CVRTD Serial Data
GMC specific DTC OBD2 code: P1629 Theft Deterrent System-Cranking Signal
GMC specific DTC OBD2 code: P1645 EVAP Solenoid Output Circuit
GMC specific DTC OBD2 code: P1612 Loss OF IPM Serial Data
GMC specific DTC OBD2 code: P1630 Theft Deterrent Learn Mode Active
GMC specific DTC OBD2 code: P1646 Driver 1 Line 6
GMC specific DTC OBD2 code: P1613 Loss Of DIM Serial Data