LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 576 (Functional Descriptions - F25 - Charging System, Anti-Theft, Body Electrical Systems) >> Body Electrical System - Functional Description >> Setpoint value table of brake light switch >> Function

Setpoint value table of brake light switch: Function

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

The brake light switch connects to ground, the brake light test switch connects to battery voltage. Both signals are checked for plausibility.

The following table shows how the signals behave:

  Brake light switch is: Brake light test switch is:
Brake pedal operated open closed
Brake pedal not operated closed open
scientia non olet · About LEMON Manuals