In vehicles with four-wheel drive, torque is transmitted to all four wheels. There are two types of four-wheel drive: with constant action and with a drive-on command.
Instructions
Step 1
To check the four-wheel drive, jack one front wheel. Now rotate the front universal joint by hand. Please note that the raised wheel must also rotate. If only the CV joint is spinning (constant velocity joint - the so-called "grenade"), and the wheel is in place, then the overrunning clutch is faulty. If the wheel spins, try to hold it with your hand, simulating some of the road load. With a high degree of wear on the components of the clutch, the wheel will stop and the crunch of parts will be heard.
Step 2
Check the second wheel drive in the same way. If any faults are found, disassemble the clutch and inspect the AWD automatic engagement ring. If the "antennae" of the ring are broken off or the back of the ring is worn out, replace it without changing the clutch assembly.
Step 3
Pay attention to the car body code. If imported from Japan, DBA-RE 4 would be four-wheel drive and DBA-RE 3 would be front-wheel drive. For vehicles from the USA, the sticker inside the trunk will be the reference point. In the lower left part of it, under the barcode, three characters will be placed. SWA or SXS stands for four-wheel drive, i.e. 4WD; SWB - front-wheel drive, i.e. 2WD.
Step 4
Check the four-wheel drive visually. First, turn the steering wheel all the way to one side. Take a close look at the inside of the center of the wheel. If a part covered with a corrugated rubber band enters the center, this will indicate front-wheel drive. Now inspect the rear axle. Walk around the car and look from below. The presence of thickenings in the middle of the beam or parts with the same rubber band as the front wheel will indicate the full drive of the car.
Step 5
Look at the 4WD light - it should blink and turn green when the 4WD is on. When the drive is off, the light should not indicate a fault. Also turn off 4WD and park the machine so that one wheel is not in contact with the road (surface). After that, turn on the four-wheel drive - the car should leave.
