4X4 – Diagnostic Trouble Code (DTC) P1812 – 2021-2022 Ford F-Super Duty
NHTSA ID Number: 10205445 Manufacturer Communication Number: SSM 50322 Summary Some 2021-2022 F-Super Duty vehicles equipped with 4×4 may exhibit an illuminated powertrain malfunction (wrench) indicator and a 4×4 warning lamp with DTC P1812 stored in the transfer case control module (TCCM). DTC P1812 can set if the 4X4 selector switch is inadvertently left between detents of … Read more