How do you fix the electric running boards on a 2003 Lincoln navigator?

To fix the electric running boards on a 2003 Lincoln Navigator, first, check the fuse related to the running boards, as a blown fuse can prevent them from functioning. Inspect the wiring for any visible damage or loose connections. If the motors are not working, you may need to replace them; this involves removing the running board assembly and installing new motors. Lastly, ensure the sensors are clean and functioning properly, as they trigger the boards to deploy.