Pinpoint Test 1: Four Wheel Drive (4WD) System Functional Test
PINPOINT TEST 1: FOUR WHEEL DRIVE (4WD) SYSTEM FUNCTIONAL TEST
Normal Operation
NOTE:This test must be carried out on a hard surface in a vacant area without traffic.
NOTE:Carry out Steps 1 through 7 outlined in Inspection and Verification before carrying out this pinpoint test. See Initial Inspection and Diagnostic Overview.
The All-Wheel Drive (AWD) system continuously monitors vehicle conditions and automatically adjusts the torque distribution between the front and rear wheels. During normal operation, most of the torque is delivered to the front wheels. If wheel slip between the front and rear wheels is detected, or if the vehicle is under heavy acceleration, the AWD system increases torque to the rear wheels to prevent or control wheel slip.
Possible Causes
- AWD system concern without on-demand or continuous DTCs present
Diagnostic Procedure
