B129B

B129B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B129B 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford B129B Fault Code Meaning :

Ford B129B Symptoms :

Ford B129B Reasons :

How To Fix Ford B129B Trouble Code ?

Which Ford cars have the code B129B?

  • B129B Ford Aerostar
  • B129B Ford Bronco
  • B129B Ford C-Max
  • B129B Ford C-Max Energi
  • B129B Ford C-Max Hybrid
  • B129B Ford Contour
  • B129B Ford Crown Victoria
  • B129B Ford EcoSport
  • B129B Ford Econoline
  • B129B Ford Edge
  • B129B Ford Escape
  • B129B Ford Escape Hybrid
  • B129B Ford Escort
  • B129B Ford Everest
  • B129B Ford Excursion
  • B129B Ford Expedition
  • B129B Ford Explorer
  • B129B Ford Explorer Sport Trac
  • B129B Ford F-150
  • B129B Ford F-250
  • B129B Ford F-350
  • B129B Ford Fiesta
  • B129B Ford Flex
  • B129B Ford Focus
  • B129B Ford Focus Electric
  • B129B Ford Freestar
  • B129B Ford Freestyle
  • B129B Ford Fusion
  • B129B Ford Fusion Energi
  • B129B Ford Fusion Hybrid
  • B129B Ford Fusion Plug-In Hybrid
  • B129B Ford GT
  • B129B Ford Mustang
  • B129B Ford Mustang Mach-E
  • B129B Ford Mystique
  • B129B Ford Probe
  • B129B Ford Ranger
  • B129B Ford Taurus
  • B129B Ford Taurus X
  • B129B Ford Tempo
  • B129B Ford Thunderbird
  • B129B Ford Transit
  • B129B Ford Transit Connect
  • B129B 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.