'04 F150 Back up sensor??

[whitetrash96]

On my wife's '04 F150 whenever the truck is put into reverse the back up alarm shuts itself off. I unplugged/replugged in all sensors and checked the #18 fuse but everything seems ok. Anybody else have this problem or know where I should look next?

[hondaxr650]

Pretty common. Probably a bad sensor but you really need a scan tool to tell you which sensor is bad. Not sure if any aftermarket scanners can check it but the Ford IDS will let you monitor the sensors.

[whitetrash96]

Thanks, thats kind of what I thought. The truck is booked in tomorrow for a factory service anyways, I just hoped there was something obvious or simple I could try before paying them to look at it.