If the power liftgate on your 2006 Dodge Durango is not working, there are a few things you can check.
1. Check the fuse. The fuse for the power liftgate is located in the fuse box in the engine compartment. It is a 15 amp fuse. If the fuse is blown, replace it with a new one of the same amperage.
2. Check the ground connection. The ground connection for the power liftgate is located on the left rear of the vehicle, near the license plate. Make sure the ground connection is clean and tight.
3. Check the power connection. The power connection for the power liftgate is located on the right rear of the vehicle, near the liftgate hinge. Make sure the power connection is clean and tight.
4. Check the liftgate motor. The liftgate motor is located inside the liftgate. If the motor is not working, you will need to replace it.
5. Check the liftgate struts. The liftgate struts help to support the liftgate when it is open. If the struts are weak or damaged, they may not be able to support the liftgate, causing it to drop.
If you have checked all of these things and the power liftgate is still not working, you may need to take your vehicle to a mechanic for further diagnosis.