Real Time AWD System Symptom Troubleshooting - Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD)

Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability 

1. Rear differential clutch check

   -1. Do the rear differential clutch test .

   Is the test result OK?

   1. YES 

      Check the following items.

      • Check the rear differential fluid level and the fluid condition .
      • Check for rear differential fluid leaks.
      • Do the OIL PRESSURE CONTROL TEST in the FUNCTIONAL TEST with the HDS .
      • Do the rear differential fluid pressure sensor test .

      NO 

      Do the repair depending on the test result .