Brake Light Switch Pinout

[///MontereyM3]

Hello, does anyone have a brake light switch pinout for the M3? Need it for a custom application.

Thanks!

[bigjae46]

From memory...

One goes to the ABS/DSC module (blue/red)

One goes to the LCM.

One wire goes to the ECU controlling the solenoid on the brake booster.

Not sure what the other one does...might be a ground.


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