I have a foxwell NT510 scanner. I was able to test the lights when I accessed FRM module from the menu. The test activated it for 15 seconds. I’m not sure if the counter is bypassed when using the test function. If it is, it makes sense. I suppose there is a short somewhere that has eventually tripped the circuit. My next thing will be to connect the drivers side headlight to passengers side harness, and see if it will detect any shorts