Operation CHARM: Car repair manuals for everyone.

Brake Light Switch: Description and Operation

W/O ASR
The stop lamp switch (S9/1) sends a signal to the cruise control/idle speed control module (N4/3) when the brakes are in operation.

W/ ASR
The stop lamp switch (S9/1) sends a signal to the electronic accelerator control module (N4/1) when the brakes are in operation.