RAM · 2025-06-14
"MODULE Transfer Case Control If DTC C2112 is set in the DTCM module refer to complete diagnostics in Service Library, it has been seen this is primarily caused by a wiring issue. Please inspect all wiring, wiring connections and drive the vehicle in the conditions that set this fault according to the environmental data. Conduct the following test drive to recreate the condition to get the DTC to go active, - Shift from 2WD to 4HI (drive > 2 mins) - Shift from 4HI to 4LO (drive > 2 mins) - Shift from 4LO to 4HI (drive > 2 mins) - Shift from 4HI to 2WD (drive > 2 mins) Note: Inspect and confirm no corrosion present at the FAD connector If DTCM is still suspected to be at fault proceed with repair."