C3688

C3688 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3688 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.

Ford C3688 Fault Code Meaning :

Ford C3688 Symptoms :

Ford C3688 Reasons :

How To Fix Ford C3688 Trouble Code ?

Which Ford cars have the code C3688?

  • C3688 Ford Aerostar
  • C3688 Ford Bronco
  • C3688 Ford C-Max
  • C3688 Ford C-Max Energi
  • C3688 Ford C-Max Hybrid
  • C3688 Ford Contour
  • C3688 Ford Crown Victoria
  • C3688 Ford EcoSport
  • C3688 Ford Econoline
  • C3688 Ford Edge
  • C3688 Ford Escape
  • C3688 Ford Escape Hybrid
  • C3688 Ford Escort
  • C3688 Ford Everest
  • C3688 Ford Excursion
  • C3688 Ford Expedition
  • C3688 Ford Explorer
  • C3688 Ford Explorer Sport Trac
  • C3688 Ford F-150
  • C3688 Ford F-250
  • C3688 Ford F-350
  • C3688 Ford Fiesta
  • C3688 Ford Flex
  • C3688 Ford Focus
  • C3688 Ford Focus Electric
  • C3688 Ford Freestar
  • C3688 Ford Freestyle
  • C3688 Ford Fusion
  • C3688 Ford Fusion Energi
  • C3688 Ford Fusion Hybrid
  • C3688 Ford Fusion Plug-In Hybrid
  • C3688 Ford GT
  • C3688 Ford Mustang
  • C3688 Ford Mustang Mach-E
  • C3688 Ford Mystique
  • C3688 Ford Probe
  • C3688 Ford Ranger
  • C3688 Ford Taurus
  • C3688 Ford Taurus X
  • C3688 Ford Tempo
  • C3688 Ford Thunderbird
  • C3688 Ford Transit
  • C3688 Ford Transit Connect
  • C3688 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.