C3446

C3446 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3446 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 C3446 Fault Code Meaning :

Ford C3446 Symptoms :

Ford C3446 Reasons :

How To Fix Ford C3446 Trouble Code ?

Which Ford cars have the code C3446?

  • C3446 Ford Aerostar
  • C3446 Ford Bronco
  • C3446 Ford C-Max
  • C3446 Ford C-Max Energi
  • C3446 Ford C-Max Hybrid
  • C3446 Ford Contour
  • C3446 Ford Crown Victoria
  • C3446 Ford EcoSport
  • C3446 Ford Econoline
  • C3446 Ford Edge
  • C3446 Ford Escape
  • C3446 Ford Escape Hybrid
  • C3446 Ford Escort
  • C3446 Ford Everest
  • C3446 Ford Excursion
  • C3446 Ford Expedition
  • C3446 Ford Explorer
  • C3446 Ford Explorer Sport Trac
  • C3446 Ford F-150
  • C3446 Ford F-250
  • C3446 Ford F-350
  • C3446 Ford Fiesta
  • C3446 Ford Flex
  • C3446 Ford Focus
  • C3446 Ford Focus Electric
  • C3446 Ford Freestar
  • C3446 Ford Freestyle
  • C3446 Ford Fusion
  • C3446 Ford Fusion Energi
  • C3446 Ford Fusion Hybrid
  • C3446 Ford Fusion Plug-In Hybrid
  • C3446 Ford GT
  • C3446 Ford Mustang
  • C3446 Ford Mustang Mach-E
  • C3446 Ford Mystique
  • C3446 Ford Probe
  • C3446 Ford Ranger
  • C3446 Ford Taurus
  • C3446 Ford Taurus X
  • C3446 Ford Tempo
  • C3446 Ford Thunderbird
  • C3446 Ford Transit
  • C3446 Ford Transit Connect
  • C3446 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.