U0688

U0688 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0688 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 U0688 Fault Code Meaning :

Ford U0688 Symptoms :

Ford U0688 Reasons :

How To Fix Ford U0688 Trouble Code ?

Which Ford cars have the code U0688?

  • U0688 Ford Aerostar
  • U0688 Ford Bronco
  • U0688 Ford C-Max
  • U0688 Ford C-Max Energi
  • U0688 Ford C-Max Hybrid
  • U0688 Ford Contour
  • U0688 Ford Crown Victoria
  • U0688 Ford EcoSport
  • U0688 Ford Econoline
  • U0688 Ford Edge
  • U0688 Ford Escape
  • U0688 Ford Escape Hybrid
  • U0688 Ford Escort
  • U0688 Ford Everest
  • U0688 Ford Excursion
  • U0688 Ford Expedition
  • U0688 Ford Explorer
  • U0688 Ford Explorer Sport Trac
  • U0688 Ford F-150
  • U0688 Ford F-250
  • U0688 Ford F-350
  • U0688 Ford Fiesta
  • U0688 Ford Flex
  • U0688 Ford Focus
  • U0688 Ford Focus Electric
  • U0688 Ford Freestar
  • U0688 Ford Freestyle
  • U0688 Ford Fusion
  • U0688 Ford Fusion Energi
  • U0688 Ford Fusion Hybrid
  • U0688 Ford Fusion Plug-In Hybrid
  • U0688 Ford GT
  • U0688 Ford Mustang
  • U0688 Ford Mustang Mach-E
  • U0688 Ford Mystique
  • U0688 Ford Probe
  • U0688 Ford Ranger
  • U0688 Ford Taurus
  • U0688 Ford Taurus X
  • U0688 Ford Tempo
  • U0688 Ford Thunderbird
  • U0688 Ford Transit
  • U0688 Ford Transit Connect
  • U0688 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.