GMC specific DTC OBD2 code: P1554 Cruise Engaged Circuit High Voltage
GMC specific DTC OBD2 code: P1572 ASR Active Circuit Low Too Long
GMC specific DTC OBD2 code: P1588 Cruise Control Clutch Control Circuit High
GMC specific DTC OBD2 code: P1555 Electronic Variable Orifice Output
GMC specific DTC OBD2 code: P1573 PCM/EBTCM Serial Data Circuit
GMC specific DTC OBD2 code: P1599 Engine Stall Or Near Stall Detected
GMC specific DTC OBD2 code: P1558 Cruise Control Servo Indicates Low
GMC specific DTC OBD2 code: P1574 Stoplamp Switch Circuit
GMC specific DTC OBD2 code: P1600 PCM Battery
GMC specific DTC OBD2 code: P1536 A/C System – ECT Overtemperature