P3A66

P3A66 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3A66 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P3A66 Fault Code Meaning :

Ford P3A66 Symptoms :

Ford P3A66 Reasons :

How To Fix Ford P3A66 Trouble Code ?

Which Ford cars have the code P3A66?

  • P3A66 Ford Aerostar
  • P3A66 Ford Bronco
  • P3A66 Ford C-Max
  • P3A66 Ford C-Max Energi
  • P3A66 Ford C-Max Hybrid
  • P3A66 Ford Contour
  • P3A66 Ford Crown Victoria
  • P3A66 Ford EcoSport
  • P3A66 Ford Econoline
  • P3A66 Ford Edge
  • P3A66 Ford Escape
  • P3A66 Ford Escape Hybrid
  • P3A66 Ford Escort
  • P3A66 Ford Everest
  • P3A66 Ford Excursion
  • P3A66 Ford Expedition
  • P3A66 Ford Explorer
  • P3A66 Ford Explorer Sport Trac
  • P3A66 Ford F-150
  • P3A66 Ford F-250
  • P3A66 Ford F-350
  • P3A66 Ford Fiesta
  • P3A66 Ford Flex
  • P3A66 Ford Focus
  • P3A66 Ford Focus Electric
  • P3A66 Ford Freestar
  • P3A66 Ford Freestyle
  • P3A66 Ford Fusion
  • P3A66 Ford Fusion Energi
  • P3A66 Ford Fusion Hybrid
  • P3A66 Ford Fusion Plug-In Hybrid
  • P3A66 Ford GT
  • P3A66 Ford Mustang
  • P3A66 Ford Mustang Mach-E
  • P3A66 Ford Mystique
  • P3A66 Ford Probe
  • P3A66 Ford Ranger
  • P3A66 Ford Taurus
  • P3A66 Ford Taurus X
  • P3A66 Ford Tempo
  • P3A66 Ford Thunderbird
  • P3A66 Ford Transit
  • P3A66 Ford Transit Connect
  • P3A66 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.