So, a little update. This weekend we had to take this vehicle for a road trip as the other vehicle was out of commission. While we were driving, we had to make a rest stop so we parked for ten minutes. When I started the car and we took off, I noticed that the speedo, odometer and mileage gauge were not working. This happened multiple times throughout the weekend. I noticed that it would only turn on/off when the vehicle was shut off and turned on, not while it was driving.
Is this further evidence that the module itself is dying? The trifecta lights were on regardless of the speedo working or not.