U1203

U1203 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1203 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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 disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford U1203 Fault Code Meaning :

Ford U1203 Symptoms :

Ford U1203 Reasons :

How To Fix Ford U1203 Trouble Code ?

Which Ford cars have the code U1203?

  • U1203 Ford Aerostar
  • U1203 Ford Bronco
  • U1203 Ford C-Max
  • U1203 Ford C-Max Energi
  • U1203 Ford C-Max Hybrid
  • U1203 Ford Contour
  • U1203 Ford Crown Victoria
  • U1203 Ford EcoSport
  • U1203 Ford Econoline
  • U1203 Ford Edge
  • U1203 Ford Escape
  • U1203 Ford Escape Hybrid
  • U1203 Ford Escort
  • U1203 Ford Everest
  • U1203 Ford Excursion
  • U1203 Ford Expedition
  • U1203 Ford Explorer
  • U1203 Ford Explorer Sport Trac
  • U1203 Ford F-150
  • U1203 Ford F-250
  • U1203 Ford F-350
  • U1203 Ford Fiesta
  • U1203 Ford Flex
  • U1203 Ford Focus
  • U1203 Ford Focus Electric
  • U1203 Ford Freestar
  • U1203 Ford Freestyle
  • U1203 Ford Fusion
  • U1203 Ford Fusion Energi
  • U1203 Ford Fusion Hybrid
  • U1203 Ford Fusion Plug-In Hybrid
  • U1203 Ford GT
  • U1203 Ford Mustang
  • U1203 Ford Mustang Mach-E
  • U1203 Ford Mystique
  • U1203 Ford Probe
  • U1203 Ford Ranger
  • U1203 Ford Taurus
  • U1203 Ford Taurus X
  • U1203 Ford Tempo
  • U1203 Ford Thunderbird
  • U1203 Ford Transit
  • U1203 Ford Transit Connect
  • U1203 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.