B1688

B1688 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1688 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 B1688 Fault Code Meaning :

Ford B1688 Symptoms :

Ford B1688 Reasons :

How To Fix Ford B1688 Trouble Code ?

Which Ford cars have the code B1688?

  • B1688 Ford Aerostar
  • B1688 Ford Bronco
  • B1688 Ford C-Max
  • B1688 Ford C-Max Energi
  • B1688 Ford C-Max Hybrid
  • B1688 Ford Contour
  • B1688 Ford Crown Victoria
  • B1688 Ford EcoSport
  • B1688 Ford Econoline
  • B1688 Ford Edge
  • B1688 Ford Escape
  • B1688 Ford Escape Hybrid
  • B1688 Ford Escort
  • B1688 Ford Everest
  • B1688 Ford Excursion
  • B1688 Ford Expedition
  • B1688 Ford Explorer
  • B1688 Ford Explorer Sport Trac
  • B1688 Ford F-150
  • B1688 Ford F-250
  • B1688 Ford F-350
  • B1688 Ford Fiesta
  • B1688 Ford Flex
  • B1688 Ford Focus
  • B1688 Ford Focus Electric
  • B1688 Ford Freestar
  • B1688 Ford Freestyle
  • B1688 Ford Fusion
  • B1688 Ford Fusion Energi
  • B1688 Ford Fusion Hybrid
  • B1688 Ford Fusion Plug-In Hybrid
  • B1688 Ford GT
  • B1688 Ford Mustang
  • B1688 Ford Mustang Mach-E
  • B1688 Ford Mystique
  • B1688 Ford Probe
  • B1688 Ford Ranger
  • B1688 Ford Taurus
  • B1688 Ford Taurus X
  • B1688 Ford Tempo
  • B1688 Ford Thunderbird
  • B1688 Ford Transit
  • B1688 Ford Transit Connect
  • B1688 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.