C1803

C1803 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1803 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 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 C1803 Fault Code Meaning :

Ford C1803 Symptoms :

Ford C1803 Reasons :

How To Fix Ford C1803 Trouble Code ?

Which Ford cars have the code C1803?

  • C1803 Ford Aerostar
  • C1803 Ford Bronco
  • C1803 Ford C-Max
  • C1803 Ford C-Max Energi
  • C1803 Ford C-Max Hybrid
  • C1803 Ford Contour
  • C1803 Ford Crown Victoria
  • C1803 Ford EcoSport
  • C1803 Ford Econoline
  • C1803 Ford Edge
  • C1803 Ford Escape
  • C1803 Ford Escape Hybrid
  • C1803 Ford Escort
  • C1803 Ford Everest
  • C1803 Ford Excursion
  • C1803 Ford Expedition
  • C1803 Ford Explorer
  • C1803 Ford Explorer Sport Trac
  • C1803 Ford F-150
  • C1803 Ford F-250
  • C1803 Ford F-350
  • C1803 Ford Fiesta
  • C1803 Ford Flex
  • C1803 Ford Focus
  • C1803 Ford Focus Electric
  • C1803 Ford Freestar
  • C1803 Ford Freestyle
  • C1803 Ford Fusion
  • C1803 Ford Fusion Energi
  • C1803 Ford Fusion Hybrid
  • C1803 Ford Fusion Plug-In Hybrid
  • C1803 Ford GT
  • C1803 Ford Mustang
  • C1803 Ford Mustang Mach-E
  • C1803 Ford Mystique
  • C1803 Ford Probe
  • C1803 Ford Ranger
  • C1803 Ford Taurus
  • C1803 Ford Taurus X
  • C1803 Ford Tempo
  • C1803 Ford Thunderbird
  • C1803 Ford Transit
  • C1803 Ford Transit Connect
  • C1803 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.