GMC specific DTC OBD2 code: P1403 Exhaust Gas Recirculation System Valve 1
GMC specific DTC OBD2 code: P1357 IC Output High/Pulse Detected When Grounded Cyl.7
GMC specific DTC OBD2 code: P1375 24X Reference Circuit High Voltage
GMC specific DTC OBD2 code: P1404 Exhaust Gas Recirculation System Valve 2
GMC specific DTC OBD2 code: P1358 IC Output High/Pulse Detected When Grounded Cyl.8
GMC specific DTC OBD2 code: P1376 Ignition Ground Circuit
GMC specific DTC OBD2 code: P1405 Exhaust Gas Recirculation System Valve 3
GMC specific DTC OBD2 code: P1322 EI System Or Ignition Control Missing
GMC specific DTC OBD2 code: P1359 Ignition Control Circuit Group A
GMC specific DTC OBD2 code: P1377 IC Module CAM Pulse To 4X Reference Pulse Comparison