P1203

P1203 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1203 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 P1203 Fault Code Meaning :

Ford P1203 Symptoms :

Ford P1203 Reasons :

How To Fix Ford P1203 Trouble Code ?

Which Ford cars have the code P1203?

  • P1203 Ford Aerostar
  • P1203 Ford Bronco
  • P1203 Ford C-Max
  • P1203 Ford C-Max Energi
  • P1203 Ford C-Max Hybrid
  • P1203 Ford Contour
  • P1203 Ford Crown Victoria
  • P1203 Ford EcoSport
  • P1203 Ford Econoline
  • P1203 Ford Edge
  • P1203 Ford Escape
  • P1203 Ford Escape Hybrid
  • P1203 Ford Escort
  • P1203 Ford Everest
  • P1203 Ford Excursion
  • P1203 Ford Expedition
  • P1203 Ford Explorer
  • P1203 Ford Explorer Sport Trac
  • P1203 Ford F-150
  • P1203 Ford F-250
  • P1203 Ford F-350
  • P1203 Ford Fiesta
  • P1203 Ford Flex
  • P1203 Ford Focus
  • P1203 Ford Focus Electric
  • P1203 Ford Freestar
  • P1203 Ford Freestyle
  • P1203 Ford Fusion
  • P1203 Ford Fusion Energi
  • P1203 Ford Fusion Hybrid
  • P1203 Ford Fusion Plug-In Hybrid
  • P1203 Ford GT
  • P1203 Ford Mustang
  • P1203 Ford Mustang Mach-E
  • P1203 Ford Mystique
  • P1203 Ford Probe
  • P1203 Ford Ranger
  • P1203 Ford Taurus
  • P1203 Ford Taurus X
  • P1203 Ford Tempo
  • P1203 Ford Thunderbird
  • P1203 Ford Transit
  • P1203 Ford Transit Connect
  • P1203 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.