U1686

U1686 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1686 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford U1686 Fault Code Meaning :

Ford U1686 Symptoms :

Ford U1686 Reasons :

How To Fix Ford U1686 Trouble Code ?

Which Ford cars have the code U1686?

  • U1686 Ford Aerostar
  • U1686 Ford Bronco
  • U1686 Ford C-Max
  • U1686 Ford C-Max Energi
  • U1686 Ford C-Max Hybrid
  • U1686 Ford Contour
  • U1686 Ford Crown Victoria
  • U1686 Ford EcoSport
  • U1686 Ford Econoline
  • U1686 Ford Edge
  • U1686 Ford Escape
  • U1686 Ford Escape Hybrid
  • U1686 Ford Escort
  • U1686 Ford Everest
  • U1686 Ford Excursion
  • U1686 Ford Expedition
  • U1686 Ford Explorer
  • U1686 Ford Explorer Sport Trac
  • U1686 Ford F-150
  • U1686 Ford F-250
  • U1686 Ford F-350
  • U1686 Ford Fiesta
  • U1686 Ford Flex
  • U1686 Ford Focus
  • U1686 Ford Focus Electric
  • U1686 Ford Freestar
  • U1686 Ford Freestyle
  • U1686 Ford Fusion
  • U1686 Ford Fusion Energi
  • U1686 Ford Fusion Hybrid
  • U1686 Ford Fusion Plug-In Hybrid
  • U1686 Ford GT
  • U1686 Ford Mustang
  • U1686 Ford Mustang Mach-E
  • U1686 Ford Mystique
  • U1686 Ford Probe
  • U1686 Ford Ranger
  • U1686 Ford Taurus
  • U1686 Ford Taurus X
  • U1686 Ford Tempo
  • U1686 Ford Thunderbird
  • U1686 Ford Transit
  • U1686 Ford Transit Connect
  • U1686 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.