Heavy Duty Diesel Truck Scanner Tool OBD2 Code Reader Engine Fault Diagnostic

V501 OBD2 Car Truck Diesel Oil Diagnostic Tool Vehicle Engine Fault Code Reader Scanner Analyzer. GM 12 Pin OBD1 to 16 Pin OBD2 Convertor Adapter Cable For Diagnostic Scanner US. 12 Pin OBD1 To 16 Pin OBD2 Convertor Adapter Cable For GM OBD Diagnostic Scanner.