Ford P1858 OBD-II Trouble Code Definition: P1858 Transmission transfer case contact plate D circuit failure P1858 Ford OBD-II Trouble CodeDescription: PSA OBD Trouble Code P1858 Transmission transfer case contact plate D circuit failure Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. VAG OBD Trouble Code P1858 Engine Speed Input Circ. Error Message from […]