Ok so the other day I had a bunch of things start failing first thing I noticed was my gas gauge quit working l had about 1/2 tank when it just stopped working I lost the miles to empty calculator too. Then I noticed the wipers only work on high Washer fluid doesn’t work at all. Then all the turn signals blink fast like they do when a bulb is out although I went through checked all fuses and bulbs everything is fine So I’m thinking maybe body control module but I’m not sure has anybody else how this happened to them? Truck is a 2013 f150 with 5.0

 

You may be dealing with two common failures, the multifunction switch and the Fuel Pump Driver Module.

Wiper and Washer fluid acting strange is usually multifunction switch part number: Motorcraft SW-6874. Not sure how to really test this except just change it. Make sure you have a tiny 7/32 socket for the bolts under the steering column surround. It's a 10 min job.

From the wiring diag below, the level sensor wiring goes into the FPDM. When these usually fail the truck doesn't start, but you should check the condition of the wiring and connector and pins on the module itself, they corrode or get eaten. It's above spare tire.