B1591

B1591 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1591 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 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 B1591 Fault Code Meaning :

Ford B1591 Symptoms :

Ford B1591 Reasons :

How To Fix Ford B1591 Trouble Code ?

Which Ford cars have the code B1591?

  • B1591 Ford Aerostar
  • B1591 Ford Bronco
  • B1591 Ford C-Max
  • B1591 Ford C-Max Energi
  • B1591 Ford C-Max Hybrid
  • B1591 Ford Contour
  • B1591 Ford Crown Victoria
  • B1591 Ford EcoSport
  • B1591 Ford Econoline
  • B1591 Ford Edge
  • B1591 Ford Escape
  • B1591 Ford Escape Hybrid
  • B1591 Ford Escort
  • B1591 Ford Everest
  • B1591 Ford Excursion
  • B1591 Ford Expedition
  • B1591 Ford Explorer
  • B1591 Ford Explorer Sport Trac
  • B1591 Ford F-150
  • B1591 Ford F-250
  • B1591 Ford F-350
  • B1591 Ford Fiesta
  • B1591 Ford Flex
  • B1591 Ford Focus
  • B1591 Ford Focus Electric
  • B1591 Ford Freestar
  • B1591 Ford Freestyle
  • B1591 Ford Fusion
  • B1591 Ford Fusion Energi
  • B1591 Ford Fusion Hybrid
  • B1591 Ford Fusion Plug-In Hybrid
  • B1591 Ford GT
  • B1591 Ford Mustang
  • B1591 Ford Mustang Mach-E
  • B1591 Ford Mystique
  • B1591 Ford Probe
  • B1591 Ford Ranger
  • B1591 Ford Taurus
  • B1591 Ford Taurus X
  • B1591 Ford Tempo
  • B1591 Ford Thunderbird
  • B1591 Ford Transit
  • B1591 Ford Transit Connect
  • B1591 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.