Originally Posted by ntg433

It's no longer a mystery. The P0522 code is actually an auto OBD II code. This code is a "low voltage oil sensor". I have had it come on various times even after clearing and verifying that the oil level is fine. IT WILL APPEAR EVEN WITOUT TRIPPING THE RED WARING LIGHT. I'm taking my bike in to have them check it it out. It throws the code on very hot days, I imagine because the oil is very thin and there is less pressure. THIS BEGS THE QUESTION: Is this a fault in the sensor or its circuit OR is the oil pump inadequate on those days when the oil temps are high. Time will tell. I will post back.

Originally Posted by Coastal CVO

Yep, H-D replaced mine at a little over a 1000 miles.

P0522 OBD-II Trouble Code: Engine Oil Pressure Sensor/Switch Low Voltage. P0522 code means the sensor is indicating too low of an oil pressure value due to faulty sensor, low oil, or sensor circuit.Aug 17, 2016

Originally Posted by GalvTexGuy

I found these two posts about it: