Brake light switch

Brief description of components

Brake light switch

The brake light switch is an electronic switch. The brake light switch is supplied with power by the light module as of terminal R ON.

For safety reasons, the brake light switch contains 2 switch outputs:

• One output is connected with the light module.
  
• The other output is connected to the CAS (Car Access System) control module. The CAS evaluates the brake signal and passes it on to the K-CAN SYSTEM data bus.
  

The signal ”brake light switch operated” is thus received by two independent control modules and passed on. If one of the two signal paths fails, the other still functions.