I have a 2006 Powerstroke F350. Recently, the "check air filter" light has been coming on. It comes on intermittently, and every time it comes on it makes a warning tone. Super annoying.

I reset the minder, and even tried unplugging it. No change. I think I must have a short in the sensor wiring, but I can't seem to find a wiring diagram that shows the air filter sensor.

Can anyone point me towards a wiring diagram that shows how the minder is wired? Or does anyone know the part number for the relevant wiring harness?

Thanks!

 

Serious question.....have you checked/changed the air filter? Wouldn't that get rid of the message?

 

I cleaned and oiled the Airaid filter, and reset the filter minder. No change. I even unplugged the filter minder from the wiring harness. Still no change. The warning still came on intermittently even with the filter minder unplugged. That's why I think there's a wiring issue.