P1A91

P1A91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1A91 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P1A91 Fault Code Meaning :

Ford P1A91 Symptoms :

Ford P1A91 Reasons :

How To Fix Ford P1A91 Trouble Code ?

Which Ford cars have the code P1A91?

  • P1A91 Ford Aerostar
  • P1A91 Ford Bronco
  • P1A91 Ford C-Max
  • P1A91 Ford C-Max Energi
  • P1A91 Ford C-Max Hybrid
  • P1A91 Ford Contour
  • P1A91 Ford Crown Victoria
  • P1A91 Ford EcoSport
  • P1A91 Ford Econoline
  • P1A91 Ford Edge
  • P1A91 Ford Escape
  • P1A91 Ford Escape Hybrid
  • P1A91 Ford Escort
  • P1A91 Ford Everest
  • P1A91 Ford Excursion
  • P1A91 Ford Expedition
  • P1A91 Ford Explorer
  • P1A91 Ford Explorer Sport Trac
  • P1A91 Ford F-150
  • P1A91 Ford F-250
  • P1A91 Ford F-350
  • P1A91 Ford Fiesta
  • P1A91 Ford Flex
  • P1A91 Ford Focus
  • P1A91 Ford Focus Electric
  • P1A91 Ford Freestar
  • P1A91 Ford Freestyle
  • P1A91 Ford Fusion
  • P1A91 Ford Fusion Energi
  • P1A91 Ford Fusion Hybrid
  • P1A91 Ford Fusion Plug-In Hybrid
  • P1A91 Ford GT
  • P1A91 Ford Mustang
  • P1A91 Ford Mustang Mach-E
  • P1A91 Ford Mystique
  • P1A91 Ford Probe
  • P1A91 Ford Ranger
  • P1A91 Ford Taurus
  • P1A91 Ford Taurus X
  • P1A91 Ford Tempo
  • P1A91 Ford Thunderbird
  • P1A91 Ford Transit
  • P1A91 Ford Transit Connect
  • P1A91 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.