Bcm
Tourer
Joined: Oct 2005
Posts: 376
Likes: 138
From: HEADLAND, ALABAMA
Found this in another HD Forums post... Sounds reasonable.
The BCM (Body Control Module) is what provides power to all electrical components on the bike.. (Fuel pump, headlight,etc) it eliminates fuses and relays... it is a module that looks quite similar to the ECM.. and it is controlled by the ECM.. pretty smart idea to eliminate fuse and relay blocks.. the big issue is when it fails for one component... you have to replace it.
The BCM (Body Control Module) is what provides power to all electrical components on the bike.. (Fuel pump, headlight,etc) it eliminates fuses and relays... it is a module that looks quite similar to the ECM.. and it is controlled by the ECM.. pretty smart idea to eliminate fuse and relay blocks.. the big issue is when it fails for one component... you have to replace it.
Seasoned HDF Member
Joined: Sep 2018
Posts: 6,040
Likes: 1,816
From: Kalifornia
My truck has a bcm but every circuit attached to it is still fused. Not sure who thinks it would eliminate fuses. You do not want a short getting to ANY computer module.
The bcm on the truck simply allows them to program the various functions of those circuits, ie timing of interior lights when opening doors and leaving them open, safety circuits to prevent overloads etc.
The bcm on the truck simply allows them to program the various functions of those circuits, ie timing of interior lights when opening doors and leaving them open, safety circuits to prevent overloads etc.
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