P3638

P3638 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3638 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 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 P3638 Fault Code Meaning :

Ford P3638 Symptoms :

Ford P3638 Reasons :

How To Fix Ford P3638 Trouble Code ?

Which Ford cars have the code P3638?

  • P3638 Ford Aerostar
  • P3638 Ford Bronco
  • P3638 Ford C-Max
  • P3638 Ford C-Max Energi
  • P3638 Ford C-Max Hybrid
  • P3638 Ford Contour
  • P3638 Ford Crown Victoria
  • P3638 Ford EcoSport
  • P3638 Ford Econoline
  • P3638 Ford Edge
  • P3638 Ford Escape
  • P3638 Ford Escape Hybrid
  • P3638 Ford Escort
  • P3638 Ford Everest
  • P3638 Ford Excursion
  • P3638 Ford Expedition
  • P3638 Ford Explorer
  • P3638 Ford Explorer Sport Trac
  • P3638 Ford F-150
  • P3638 Ford F-250
  • P3638 Ford F-350
  • P3638 Ford Fiesta
  • P3638 Ford Flex
  • P3638 Ford Focus
  • P3638 Ford Focus Electric
  • P3638 Ford Freestar
  • P3638 Ford Freestyle
  • P3638 Ford Fusion
  • P3638 Ford Fusion Energi
  • P3638 Ford Fusion Hybrid
  • P3638 Ford Fusion Plug-In Hybrid
  • P3638 Ford GT
  • P3638 Ford Mustang
  • P3638 Ford Mustang Mach-E
  • P3638 Ford Mystique
  • P3638 Ford Probe
  • P3638 Ford Ranger
  • P3638 Ford Taurus
  • P3638 Ford Taurus X
  • P3638 Ford Tempo
  • P3638 Ford Thunderbird
  • P3638 Ford Transit
  • P3638 Ford Transit Connect
  • P3638 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.