B3934

B3934 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3934 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 B3934 Fault Code Meaning :

Ford B3934 Symptoms :

Ford B3934 Reasons :

How To Fix Ford B3934 Trouble Code ?

Which Ford cars have the code B3934?

  • B3934 Ford Aerostar
  • B3934 Ford Bronco
  • B3934 Ford C-Max
  • B3934 Ford C-Max Energi
  • B3934 Ford C-Max Hybrid
  • B3934 Ford Contour
  • B3934 Ford Crown Victoria
  • B3934 Ford EcoSport
  • B3934 Ford Econoline
  • B3934 Ford Edge
  • B3934 Ford Escape
  • B3934 Ford Escape Hybrid
  • B3934 Ford Escort
  • B3934 Ford Everest
  • B3934 Ford Excursion
  • B3934 Ford Expedition
  • B3934 Ford Explorer
  • B3934 Ford Explorer Sport Trac
  • B3934 Ford F-150
  • B3934 Ford F-250
  • B3934 Ford F-350
  • B3934 Ford Fiesta
  • B3934 Ford Flex
  • B3934 Ford Focus
  • B3934 Ford Focus Electric
  • B3934 Ford Freestar
  • B3934 Ford Freestyle
  • B3934 Ford Fusion
  • B3934 Ford Fusion Energi
  • B3934 Ford Fusion Hybrid
  • B3934 Ford Fusion Plug-In Hybrid
  • B3934 Ford GT
  • B3934 Ford Mustang
  • B3934 Ford Mustang Mach-E
  • B3934 Ford Mystique
  • B3934 Ford Probe
  • B3934 Ford Ranger
  • B3934 Ford Taurus
  • B3934 Ford Taurus X
  • B3934 Ford Tempo
  • B3934 Ford Thunderbird
  • B3934 Ford Transit
  • B3934 Ford Transit Connect
  • B3934 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.