P3A42

P3A42 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3A42 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P3A42 Fault Code Meaning :

Ford P3A42 Symptoms :

Ford P3A42 Reasons :

How To Fix Ford P3A42 Trouble Code ?

Which Ford cars have the code P3A42?

  • P3A42 Ford Aerostar
  • P3A42 Ford Bronco
  • P3A42 Ford C-Max
  • P3A42 Ford C-Max Energi
  • P3A42 Ford C-Max Hybrid
  • P3A42 Ford Contour
  • P3A42 Ford Crown Victoria
  • P3A42 Ford EcoSport
  • P3A42 Ford Econoline
  • P3A42 Ford Edge
  • P3A42 Ford Escape
  • P3A42 Ford Escape Hybrid
  • P3A42 Ford Escort
  • P3A42 Ford Everest
  • P3A42 Ford Excursion
  • P3A42 Ford Expedition
  • P3A42 Ford Explorer
  • P3A42 Ford Explorer Sport Trac
  • P3A42 Ford F-150
  • P3A42 Ford F-250
  • P3A42 Ford F-350
  • P3A42 Ford Fiesta
  • P3A42 Ford Flex
  • P3A42 Ford Focus
  • P3A42 Ford Focus Electric
  • P3A42 Ford Freestar
  • P3A42 Ford Freestyle
  • P3A42 Ford Fusion
  • P3A42 Ford Fusion Energi
  • P3A42 Ford Fusion Hybrid
  • P3A42 Ford Fusion Plug-In Hybrid
  • P3A42 Ford GT
  • P3A42 Ford Mustang
  • P3A42 Ford Mustang Mach-E
  • P3A42 Ford Mystique
  • P3A42 Ford Probe
  • P3A42 Ford Ranger
  • P3A42 Ford Taurus
  • P3A42 Ford Taurus X
  • P3A42 Ford Tempo
  • P3A42 Ford Thunderbird
  • P3A42 Ford Transit
  • P3A42 Ford Transit Connect
  • P3A42 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.