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

Model All (CAR) 

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

G16142950Courtesy of MERCEDES-BENZ USA

Sample diagram with rear switch module 

Overview 

This document contains information on:

General 

The rear switch module (1) enables the function to open, stop or close a tailgate, a trunk lid or a rear-end door in a contactless manner via a defined foot movement under the bumper in combination with a transmitter key or smartphone.

The rear switch module (1) is located behind the trim of the rear bumper and evaluates the signals of the following sensors:

Function 

The rear switch module (1) contains, among other things, a radar, electric lines and a control unit.

A targeted kick movement under the rear bumper is detected by the sensors. The rear switch module (1) evaluates the sensor signals and transmits corresponding information to the central locking system.

IMPORTANT If the KEYLESS-GO function is deactivated, the HANDS-FREE ACCESS function is also deactivated.

IMPORTANT In combination with a trailer coupling, difficulties can occur regarding the detection of the foot movement. The foot movement must in this case be realized beside the trailer coupling.

  Component descriptions     
  Rear switching module, component description Model 223 GF80.61-P-4110A
    Model 243 GF80.61-P-4110B
    Model 206 GF80.61-P-4110C
    Model 297 GF80.61-P-4110D
    Model 295 GF80.61-P-4110E
    Model 232 GF80.61-P-4110F
    Model 296 GF80.61-P-4110G
    Model 254 GF80.61-P-4110H
    Model 214 GF80.61-P-4110K
    Model 118, 177, 247 as of model year 2023 GF80.61-P-4110L
    Model 167 as of model year 2023 GF80.61-P-4110M
    Model 294 GF80.61-P-4110N
  Rear switching module sensor, component description Model 223 GF80.61-P-4111A
    Model 243 GF80.61-P-4111B
    Model 206 GF80.61-P-4111C
    Model 297 GF80.61-P-4111D
    Model 295 GF80.61-P-4111E
    Model 232 GF80.61-P-4111F
    Model 296 GF80.61-P-4111G
    Model 254 GF80.61-P-4111H
    Model 214 GF80.61-P-4111K
    Model 294 GF80.61-P-4111N