P21A5

P21A5 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21A5 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 P21A5 Fault Code Meaning :

Ford P21A5 Symptoms :

Ford P21A5 Reasons :

How To Fix Ford P21A5 Trouble Code ?

Which Ford cars have the code P21A5?

  • P21A5 Ford Aerostar
  • P21A5 Ford Bronco
  • P21A5 Ford C-Max
  • P21A5 Ford C-Max Energi
  • P21A5 Ford C-Max Hybrid
  • P21A5 Ford Contour
  • P21A5 Ford Crown Victoria
  • P21A5 Ford EcoSport
  • P21A5 Ford Econoline
  • P21A5 Ford Edge
  • P21A5 Ford Escape
  • P21A5 Ford Escape Hybrid
  • P21A5 Ford Escort
  • P21A5 Ford Everest
  • P21A5 Ford Excursion
  • P21A5 Ford Expedition
  • P21A5 Ford Explorer
  • P21A5 Ford Explorer Sport Trac
  • P21A5 Ford F-150
  • P21A5 Ford F-250
  • P21A5 Ford F-350
  • P21A5 Ford Fiesta
  • P21A5 Ford Flex
  • P21A5 Ford Focus
  • P21A5 Ford Focus Electric
  • P21A5 Ford Freestar
  • P21A5 Ford Freestyle
  • P21A5 Ford Fusion
  • P21A5 Ford Fusion Energi
  • P21A5 Ford Fusion Hybrid
  • P21A5 Ford Fusion Plug-In Hybrid
  • P21A5 Ford GT
  • P21A5 Ford Mustang
  • P21A5 Ford Mustang Mach-E
  • P21A5 Ford Mystique
  • P21A5 Ford Probe
  • P21A5 Ford Ranger
  • P21A5 Ford Taurus
  • P21A5 Ford Taurus X
  • P21A5 Ford Tempo
  • P21A5 Ford Thunderbird
  • P21A5 Ford Transit
  • P21A5 Ford Transit Connect
  • P21A5 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.