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Body control module is a generic term for an electronic control unit responsible for monitoring and controlling various electronic accessories in a vehicle's body. Typically in a car the BCM controls the power windows, power mirrors, air conditioning, immobilizer system, central locking, etc. The BCM communicates with other on-board computers via the car's vehicle bus, and its main application is controlling load drivers - actuating relays that in turn perform actions in the vehicle such as locking the doors or dimming the salon overhead lamp. Check the fuses the wiring going to the dash. even some times banging on it corrects the problem
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no body size told, extended cab or ????
ext cab is
BCM should be located on passenger side kick panel (under glove box to the right). You have to remove a panel.
2007 service manual remove it page, clear as day
What year F-150 , does the light on the dash blink ? could have a code set in smart junction box ( ford's BCM ) body control module . Actuators at front wheels are vacuum controlled , you can test to see if there is vacuum at the actuator. There is also a solenoid on the firewall near the battery that supplies vacuum to the front actuators !
I have this same issue - I've researched it to death. I've been told it everything from the BCM (body control module aka computer) to a bad ignition switch to a loose ground. The cost to getting it fixed runs into the hundreds of dollars. Fortunately it comes and goes and is not a permanent fault on my Impala. The security indicator lights because the computer thinks the car is being stolen. I swapped keys and it does seem to help but it still crops up now and then. The easy solution is to turn the key to the off position and (this is very important) wait no less than 10 minutes. Turn the key and your vehicle should start. 10 minutes is the time it takes the system to reset. During that 10 minutes reset period don't open the doors or turn the key at all. Hope this works for you as it continues for me.
Hope this helps?
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