P3789

P3789 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3789 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 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 OFF.

The top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.

Ford P3789 Fault Code Meaning :

Ford P3789 Symptoms :

Ford P3789 Reasons :

How To Fix Ford P3789 Trouble Code ?

Which Ford cars have the code P3789?

  • P3789 Ford Aerostar
  • P3789 Ford Bronco
  • P3789 Ford C-Max
  • P3789 Ford C-Max Energi
  • P3789 Ford C-Max Hybrid
  • P3789 Ford Contour
  • P3789 Ford Crown Victoria
  • P3789 Ford EcoSport
  • P3789 Ford Econoline
  • P3789 Ford Edge
  • P3789 Ford Escape
  • P3789 Ford Escape Hybrid
  • P3789 Ford Escort
  • P3789 Ford Everest
  • P3789 Ford Excursion
  • P3789 Ford Expedition
  • P3789 Ford Explorer
  • P3789 Ford Explorer Sport Trac
  • P3789 Ford F-150
  • P3789 Ford F-250
  • P3789 Ford F-350
  • P3789 Ford Fiesta
  • P3789 Ford Flex
  • P3789 Ford Focus
  • P3789 Ford Focus Electric
  • P3789 Ford Freestar
  • P3789 Ford Freestyle
  • P3789 Ford Fusion
  • P3789 Ford Fusion Energi
  • P3789 Ford Fusion Hybrid
  • P3789 Ford Fusion Plug-In Hybrid
  • P3789 Ford GT
  • P3789 Ford Mustang
  • P3789 Ford Mustang Mach-E
  • P3789 Ford Mystique
  • P3789 Ford Probe
  • P3789 Ford Ranger
  • P3789 Ford Taurus
  • P3789 Ford Taurus X
  • P3789 Ford Tempo
  • P3789 Ford Thunderbird
  • P3789 Ford Transit
  • P3789 Ford Transit Connect
  • P3789 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.