Ford P1646 OBD-II Trouble Code Definition: P1646 Driver 1 Line 6 P1646 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P1646 Driver 1 Line 6 Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. OBD Trouble Code P1646 Booster Voltage – Too High Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. VAG […]