GMC specific DTC OBD2 code: P1652 Powertrain Induced Chassis Pitch Output Circuit
GMC specific DTC OBD2 code: P1619 Engine Oil Life Monitor Reset Circuit
GMC specific DTC OBD2 code: P1635 5 Volt Reference 1 Circuit
GMC specific DTC OBD2 code: P1653 Oil Level Lamp Control Circuit
GMC specific DTC OBD2 code: P1620 Low Coolant Circuit
GMC specific DTC OBD2 code: P1636 PCM Stack Overrun
GMC specific DTC OBD2 code: P1654 Service Throttle Soon Lamp Control Circuit
GMC specific DTC OBD2 code: P1538 A/C request Circuit High Voltage
GMC specific DTC OBD2 code: P1561 Cruise Vent Solenoid
GMC specific DTC OBD2 code: P1577 BBV Sensor Circuit Low Voltage