Ford P1826 OBD-II Trouble Code Definition: P1826 Internal Mode Switch Circuit C High P1826 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P1826 Internal Mode Switch Circuit C High Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. PSA OBD Trouble Code P1826 Transmission 4-wheel Low clutch relay circuit to battery Sorry no other information,Please […]