If anyone is experiencing problems with their 2014 Ford F150 actuators not working, the best thing to do before disassembling everything to access the wiring and connecting an oscilloscope is to first identify if there is satisfactory communication via OBD2. For this, I used the CanBus Multiplex Trainer to check the BCM message communication. Once it was satisfactory, I connected the LINBus board and monitored the behavior of the LIN frames. One of them had no data in the frame transmission, which was causing the vehicle to activate the windshield wipers randomly. Once identified, I proceeded to send the data using the CanBus Trainer's Vpro software, and the problem was solved!
So I simply went straight to the bottom left to the connector going to the BCM, removed the cover, and verified that the LIN cable sending the data had a bad connection, shorting to ground with the chassis. I fixed it, replaced the cover, and that was it, problem solved. It's very easy to troubleshoot sensor, actuator, and communication issues with these kinds of tools. The standard scanner doesn't access each slave individually or allow you to see the actual data passing through the LIN slaves, which makes advanced and accurate diagnostics difficult. For that, it's best to directly use your knowledge of CAN bus communication via OBD2 for light vehicles.
