P6B91

P6B91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P6B91 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 P6B91 Fault Code Meaning :

Ford P6B91 Symptoms :

Ford P6B91 Reasons :

How To Fix Ford P6B91 Trouble Code ?

Which Ford cars have the code P6B91?

  • P6B91 Ford Aerostar
  • P6B91 Ford Bronco
  • P6B91 Ford C-Max
  • P6B91 Ford C-Max Energi
  • P6B91 Ford C-Max Hybrid
  • P6B91 Ford Contour
  • P6B91 Ford Crown Victoria
  • P6B91 Ford EcoSport
  • P6B91 Ford Econoline
  • P6B91 Ford Edge
  • P6B91 Ford Escape
  • P6B91 Ford Escape Hybrid
  • P6B91 Ford Escort
  • P6B91 Ford Everest
  • P6B91 Ford Excursion
  • P6B91 Ford Expedition
  • P6B91 Ford Explorer
  • P6B91 Ford Explorer Sport Trac
  • P6B91 Ford F-150
  • P6B91 Ford F-250
  • P6B91 Ford F-350
  • P6B91 Ford Fiesta
  • P6B91 Ford Flex
  • P6B91 Ford Focus
  • P6B91 Ford Focus Electric
  • P6B91 Ford Freestar
  • P6B91 Ford Freestyle
  • P6B91 Ford Fusion
  • P6B91 Ford Fusion Energi
  • P6B91 Ford Fusion Hybrid
  • P6B91 Ford Fusion Plug-In Hybrid
  • P6B91 Ford GT
  • P6B91 Ford Mustang
  • P6B91 Ford Mustang Mach-E
  • P6B91 Ford Mystique
  • P6B91 Ford Probe
  • P6B91 Ford Ranger
  • P6B91 Ford Taurus
  • P6B91 Ford Taurus X
  • P6B91 Ford Tempo
  • P6B91 Ford Thunderbird
  • P6B91 Ford Transit
  • P6B91 Ford Transit Connect
  • P6B91 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.