Rear Switch Module, Basic Function - GF80.61-P-9890A

Model all (CAR) 

with code 871 (Sensor system for trunk lid opening/closing) 

Fig 1: Rear Switching Module Components Location - Model All (Car) With Code 871

Courtesy of MERCEDES-BENZ USA

Location 

The rear switch module is located behind the trim of the rear bumper.

Task 

The rear switch module evaluates the signals of the following sensors:

• Rear switching module upper sensor
• Rear switching module lower sensor

The rear switch module evaluates the sensor signals and sends corresponding information to the central locking system.