B3948

B3948 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3948 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.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 B3948 Fault Code Meaning :

Ford B3948 Symptoms :

Ford B3948 Reasons :

How To Fix Ford B3948 Trouble Code ?

Which Ford cars have the code B3948?

  • B3948 Ford Aerostar
  • B3948 Ford Bronco
  • B3948 Ford C-Max
  • B3948 Ford C-Max Energi
  • B3948 Ford C-Max Hybrid
  • B3948 Ford Contour
  • B3948 Ford Crown Victoria
  • B3948 Ford EcoSport
  • B3948 Ford Econoline
  • B3948 Ford Edge
  • B3948 Ford Escape
  • B3948 Ford Escape Hybrid
  • B3948 Ford Escort
  • B3948 Ford Everest
  • B3948 Ford Excursion
  • B3948 Ford Expedition
  • B3948 Ford Explorer
  • B3948 Ford Explorer Sport Trac
  • B3948 Ford F-150
  • B3948 Ford F-250
  • B3948 Ford F-350
  • B3948 Ford Fiesta
  • B3948 Ford Flex
  • B3948 Ford Focus
  • B3948 Ford Focus Electric
  • B3948 Ford Freestar
  • B3948 Ford Freestyle
  • B3948 Ford Fusion
  • B3948 Ford Fusion Energi
  • B3948 Ford Fusion Hybrid
  • B3948 Ford Fusion Plug-In Hybrid
  • B3948 Ford GT
  • B3948 Ford Mustang
  • B3948 Ford Mustang Mach-E
  • B3948 Ford Mystique
  • B3948 Ford Probe
  • B3948 Ford Ranger
  • B3948 Ford Taurus
  • B3948 Ford Taurus X
  • B3948 Ford Tempo
  • B3948 Ford Thunderbird
  • B3948 Ford Transit
  • B3948 Ford Transit Connect
  • B3948 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.