B1645

B1645 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1645 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 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 B1645 Fault Code Meaning :

Ford B1645 Symptoms :

Ford B1645 Reasons :

How To Fix Ford B1645 Trouble Code ?

Which Ford cars have the code B1645?

  • B1645 Ford Aerostar
  • B1645 Ford Bronco
  • B1645 Ford C-Max
  • B1645 Ford C-Max Energi
  • B1645 Ford C-Max Hybrid
  • B1645 Ford Contour
  • B1645 Ford Crown Victoria
  • B1645 Ford EcoSport
  • B1645 Ford Econoline
  • B1645 Ford Edge
  • B1645 Ford Escape
  • B1645 Ford Escape Hybrid
  • B1645 Ford Escort
  • B1645 Ford Everest
  • B1645 Ford Excursion
  • B1645 Ford Expedition
  • B1645 Ford Explorer
  • B1645 Ford Explorer Sport Trac
  • B1645 Ford F-150
  • B1645 Ford F-250
  • B1645 Ford F-350
  • B1645 Ford Fiesta
  • B1645 Ford Flex
  • B1645 Ford Focus
  • B1645 Ford Focus Electric
  • B1645 Ford Freestar
  • B1645 Ford Freestyle
  • B1645 Ford Fusion
  • B1645 Ford Fusion Energi
  • B1645 Ford Fusion Hybrid
  • B1645 Ford Fusion Plug-In Hybrid
  • B1645 Ford GT
  • B1645 Ford Mustang
  • B1645 Ford Mustang Mach-E
  • B1645 Ford Mystique
  • B1645 Ford Probe
  • B1645 Ford Ranger
  • B1645 Ford Taurus
  • B1645 Ford Taurus X
  • B1645 Ford Tempo
  • B1645 Ford Thunderbird
  • B1645 Ford Transit
  • B1645 Ford Transit Connect
  • B1645 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.