CAN-BUS indicating MFD (CCH) or Front Diff Lock (4WD)Switch failed in the armrest. Possiblefailure modes: 1. MFD (CCH) or Front Diff Lock (4WD) failed in Armrest2. Auto MFD Switchfailed in Armrest, (CCH). 3. Communication problems between the TCU controller and theArmrest
Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.