Multifunction Switch (MFS) have anything to do with the brakes lights? | Ford Explorer - Ford Ranger Forums - Serious Explorations

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Multifunction Switch (MFS) have anything to do with the brakes lights?

SyberTiger

Well-Known Member
Joined
May 18, 2007
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City, State
Orlando
Year, Model & Trim Level
2002 Limited 4x4 4.6L
As seen HERE I'm trying to figure out why my brake lights to include the Center High Mount Stop Lamp (CHMSL) is not working. Does the MFS in some way control this?

My fuses are good and my brake pedal switch was replaced but still no brake lights at all. My brake lights are capable of lighting up as proven by the hazard lights working, left and right turn signals working. There must be a mechanism that activates the brake lights to send voltage down to the actual bulbs but apparently this is a different mechanism than the hazard lights and turn signals.

How is MFS involved and distinguished from when the brake pedal is pushed?
 
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SyberTiger

Well-Known Member
Joined
May 18, 2007
Messages
719
Reaction score
44
City, State
Orlando
Year, Model & Trim Level
2002 Limited 4x4 4.6L
Never mind...even though the answer is the MFS does not have any involvement with the brakes lights on this particular build of a 2002 Ford Explorer I was able to fix my problem. The problem turned out to be a bad IVD relay so I'm good to go now.
 
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