2014 Honda CRV: AWD relay replacement. FYI: The AWD Light has to be ON to Read the Faulty Code.

FYI: For a technician (dealer, mechanic, etc) to diagnose this problem, the AWD has to be on while he is doing the diagnosis. If the light is off they will not find any fault codes. During the winter of 2019 my car had the yellow AWD warning light on while I was driving on the highway and the outside temperature was about 30 oF (-1 oC). It stayed on for the remainder of the drive (~20 mins). Next day it was fine. It hapened once more during the winter. On November of 2020 it hapened again. I did some research and came accross the Honda Bulletin 15-012 with a DTC code C1850-14. It describes what I have seen and points out to a faulty AWD relay. Seeing that it was an moderate to easy task for an untrained person, I decided to do it myself. I used the Trailer Hitch installation instructions # All 13158 to access and replace the relay. The relay is an Omron G8HL-H71 12V DC 120 Ohm, Honda p/n 39794-SDA-A02 or 39794-SDA-A03 or 39794-SDA-A05. From other reviews it is used for the A/C as well. The one that came with the car says made in China, the one that I got says made in USA. Relay was bought on Amazon for $12.00 a pair. Replaced the relay in November 2020. Will see if the light comes back on during this winter. If it turns out not to be the relay, there is another bulletin with a much more involved and expensive repair, which I would be unable to perform. This second bulletin A15-016 with DTC code C1858-73, involves changing the solenoid in the rear differential. Update...