MFD (CCH) or Front Diff Lock (4WD) solenoid failed. Possible Failure modes: 1. Solenoid coil failed 2. Damaged wiring 3. Loose connector or bent pin 4. TCU Internal failure
If Air conditioning does not work,possible causes are blown fuse, faulty wiring or loose connections, fxan belt loose or slipping or defective switch or defective compressor clutch.