P0402

P0402 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0402 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 wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P0402 Fault Code Meaning :

Ford P0402 Symptoms :

Ford P0402 Reasons :

How To Fix Ford P0402 Trouble Code ?

Which Ford cars have the code P0402?

  • P0402 Ford Aerostar
  • P0402 Ford Bronco
  • P0402 Ford C-Max
  • P0402 Ford C-Max Energi
  • P0402 Ford C-Max Hybrid
  • P0402 Ford Contour
  • P0402 Ford Crown Victoria
  • P0402 Ford EcoSport
  • P0402 Ford Econoline
  • P0402 Ford Edge
  • P0402 Ford Escape
  • P0402 Ford Escape Hybrid
  • P0402 Ford Escort
  • P0402 Ford Everest
  • P0402 Ford Excursion
  • P0402 Ford Expedition
  • P0402 Ford Explorer
  • P0402 Ford Explorer Sport Trac
  • P0402 Ford F-150
  • P0402 Ford F-250
  • P0402 Ford F-350
  • P0402 Ford Fiesta
  • P0402 Ford Flex
  • P0402 Ford Focus
  • P0402 Ford Focus Electric
  • P0402 Ford Freestar
  • P0402 Ford Freestyle
  • P0402 Ford Fusion
  • P0402 Ford Fusion Energi
  • P0402 Ford Fusion Hybrid
  • P0402 Ford Fusion Plug-In Hybrid
  • P0402 Ford GT
  • P0402 Ford Mustang
  • P0402 Ford Mustang Mach-E
  • P0402 Ford Mystique
  • P0402 Ford Probe
  • P0402 Ford Ranger
  • P0402 Ford Taurus
  • P0402 Ford Taurus X
  • P0402 Ford Tempo
  • P0402 Ford Thunderbird
  • P0402 Ford Transit
  • P0402 Ford Transit Connect
  • P0402 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.