P1021

P1021 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1021 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.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 P1021 Fault Code Meaning :

Ford P1021 Symptoms :

Ford P1021 Reasons :

How To Fix Ford P1021 Trouble Code ?

Which Ford cars have the code P1021?

  • P1021 Ford Aerostar
  • P1021 Ford Bronco
  • P1021 Ford C-Max
  • P1021 Ford C-Max Energi
  • P1021 Ford C-Max Hybrid
  • P1021 Ford Contour
  • P1021 Ford Crown Victoria
  • P1021 Ford EcoSport
  • P1021 Ford Econoline
  • P1021 Ford Edge
  • P1021 Ford Escape
  • P1021 Ford Escape Hybrid
  • P1021 Ford Escort
  • P1021 Ford Everest
  • P1021 Ford Excursion
  • P1021 Ford Expedition
  • P1021 Ford Explorer
  • P1021 Ford Explorer Sport Trac
  • P1021 Ford F-150
  • P1021 Ford F-250
  • P1021 Ford F-350
  • P1021 Ford Fiesta
  • P1021 Ford Flex
  • P1021 Ford Focus
  • P1021 Ford Focus Electric
  • P1021 Ford Freestar
  • P1021 Ford Freestyle
  • P1021 Ford Fusion
  • P1021 Ford Fusion Energi
  • P1021 Ford Fusion Hybrid
  • P1021 Ford Fusion Plug-In Hybrid
  • P1021 Ford GT
  • P1021 Ford Mustang
  • P1021 Ford Mustang Mach-E
  • P1021 Ford Mystique
  • P1021 Ford Probe
  • P1021 Ford Ranger
  • P1021 Ford Taurus
  • P1021 Ford Taurus X
  • P1021 Ford Tempo
  • P1021 Ford Thunderbird
  • P1021 Ford Transit
  • P1021 Ford Transit Connect
  • P1021 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.