Ford U1020 OBD-II Trouble Code Definition: U1020 SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch U1020 Ford OBD-II Trouble CodeDescription: OBD Trouble Code U1020 SCP (J1850) Invalid or Missing Data for Air Conditioning Clutch Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. OBD Trouble Code U1020 Loss of serial communications for […]