Hello,
My 2010 F150 Lariat back up sensors have failed. Enabling them from the Setup display option does not work. I have listened to each sensor and cannot hear a ticking noise. I'm skeptical they would all stop working at once. I've checked fuse diagram resources and don't find a fuse bank to check for a blown fuse. I'm about ready to take it to a dealer although I dread doing so.

Any suggestions? All are appreciated.

Thank you.
Robert Williams
Flower Mound, Tx

 

You will need to scan the truck. It probably has body codes and those generally wont turn on the CEL. There is a whole list of diag steps but they are very specific to a code and symptom not just they don't work. Here are couple wiring diagrams if you want to do some test light probing.



-Dan F

 

Thank you! I will pull the scan codes and see what it shows. I appreciate your help.

 

Not a problem. If you post the codes I can check Ford PTS to see if there's any simple diag procedures you can do.

 

I pulled the codes. It returned U0159. My scan tool said it was either a wiring issue or the Parking Assist Control Module needs replacing. I think I will try and replace the parking assist module if I can find it and get to it. I'm not sure what it looks like or where it is located on a 2010 F-150 Lariat.

 

I pulled the module. It is FoMoCo 9l3t-15t850-ab. It seems it is no longer made. Checking to see if I can find one. They seem to be scarce. I wish I could find a new one from Ford.

 

I have read that when parts get updated, they usually change the part number. Check for that module on a newer year F150 and see if it uses a part number that replaces the part number from your truck.