U1687

U1687 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1687 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 U1687 Fault Code Meaning :

Ford U1687 Symptoms :

Ford U1687 Reasons :

How To Fix Ford U1687 Trouble Code ?

Which Ford cars have the code U1687?

  • U1687 Ford Aerostar
  • U1687 Ford Bronco
  • U1687 Ford C-Max
  • U1687 Ford C-Max Energi
  • U1687 Ford C-Max Hybrid
  • U1687 Ford Contour
  • U1687 Ford Crown Victoria
  • U1687 Ford EcoSport
  • U1687 Ford Econoline
  • U1687 Ford Edge
  • U1687 Ford Escape
  • U1687 Ford Escape Hybrid
  • U1687 Ford Escort
  • U1687 Ford Everest
  • U1687 Ford Excursion
  • U1687 Ford Expedition
  • U1687 Ford Explorer
  • U1687 Ford Explorer Sport Trac
  • U1687 Ford F-150
  • U1687 Ford F-250
  • U1687 Ford F-350
  • U1687 Ford Fiesta
  • U1687 Ford Flex
  • U1687 Ford Focus
  • U1687 Ford Focus Electric
  • U1687 Ford Freestar
  • U1687 Ford Freestyle
  • U1687 Ford Fusion
  • U1687 Ford Fusion Energi
  • U1687 Ford Fusion Hybrid
  • U1687 Ford Fusion Plug-In Hybrid
  • U1687 Ford GT
  • U1687 Ford Mustang
  • U1687 Ford Mustang Mach-E
  • U1687 Ford Mystique
  • U1687 Ford Probe
  • U1687 Ford Ranger
  • U1687 Ford Taurus
  • U1687 Ford Taurus X
  • U1687 Ford Tempo
  • U1687 Ford Thunderbird
  • U1687 Ford Transit
  • U1687 Ford Transit Connect
  • U1687 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.