B1646
B1646 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B1646 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 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 B1646 Fault Code Meaning :
Ford B1646 Symptoms :
Ford B1646 Reasons :
How To Fix Ford B1646 Trouble Code ?
Which Ford cars have the code B1646?
- B1646 Ford Aerostar
- B1646 Ford Bronco
- B1646 Ford C-Max
- B1646 Ford C-Max Energi
- B1646 Ford C-Max Hybrid
- B1646 Ford Contour
- B1646 Ford Crown Victoria
- B1646 Ford EcoSport
- B1646 Ford Econoline
- B1646 Ford Edge
- B1646 Ford Escape
- B1646 Ford Escape Hybrid
- B1646 Ford Escort
- B1646 Ford Everest
- B1646 Ford Excursion
- B1646 Ford Expedition
- B1646 Ford Explorer
- B1646 Ford Explorer Sport Trac
- B1646 Ford F-150
- B1646 Ford F-250
- B1646 Ford F-350
- B1646 Ford Fiesta
- B1646 Ford Flex
- B1646 Ford Focus
- B1646 Ford Focus Electric
- B1646 Ford Freestar
- B1646 Ford Freestyle
- B1646 Ford Fusion
- B1646 Ford Fusion Energi
- B1646 Ford Fusion Hybrid
- B1646 Ford Fusion Plug-In Hybrid
- B1646 Ford GT
- B1646 Ford Mustang
- B1646 Ford Mustang Mach-E
- B1646 Ford Mystique
- B1646 Ford Probe
- B1646 Ford Ranger
- B1646 Ford Taurus
- B1646 Ford Taurus X
- B1646 Ford Tempo
- B1646 Ford Thunderbird
- B1646 Ford Transit
- B1646 Ford Transit Connect
- B1646 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.