P40F4

P40F4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P40F4 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P40F4 Fault Code Meaning :

Ford P40F4 Symptoms :

Ford P40F4 Reasons :

How To Fix Ford P40F4 Trouble Code ?

Which Ford cars have the code P40F4?

  • P40F4 Ford Aerostar
  • P40F4 Ford Bronco
  • P40F4 Ford C-Max
  • P40F4 Ford C-Max Energi
  • P40F4 Ford C-Max Hybrid
  • P40F4 Ford Contour
  • P40F4 Ford Crown Victoria
  • P40F4 Ford EcoSport
  • P40F4 Ford Econoline
  • P40F4 Ford Edge
  • P40F4 Ford Escape
  • P40F4 Ford Escape Hybrid
  • P40F4 Ford Escort
  • P40F4 Ford Everest
  • P40F4 Ford Excursion
  • P40F4 Ford Expedition
  • P40F4 Ford Explorer
  • P40F4 Ford Explorer Sport Trac
  • P40F4 Ford F-150
  • P40F4 Ford F-250
  • P40F4 Ford F-350
  • P40F4 Ford Fiesta
  • P40F4 Ford Flex
  • P40F4 Ford Focus
  • P40F4 Ford Focus Electric
  • P40F4 Ford Freestar
  • P40F4 Ford Freestyle
  • P40F4 Ford Fusion
  • P40F4 Ford Fusion Energi
  • P40F4 Ford Fusion Hybrid
  • P40F4 Ford Fusion Plug-In Hybrid
  • P40F4 Ford GT
  • P40F4 Ford Mustang
  • P40F4 Ford Mustang Mach-E
  • P40F4 Ford Mystique
  • P40F4 Ford Probe
  • P40F4 Ford Ranger
  • P40F4 Ford Taurus
  • P40F4 Ford Taurus X
  • P40F4 Ford Tempo
  • P40F4 Ford Thunderbird
  • P40F4 Ford Transit
  • P40F4 Ford Transit Connect
  • P40F4 Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.