KEYLESS-GO Control Unit, Component Description - GF80.61-P-4204FR

Model 257, 290

up to model year 2021

Shown on model 257

Fig 1: KEYLESS-GO Control Unit Components Location - Model 290 Up To Model Year 2021 (Shown On Model 257)

Courtesy of MERCEDES-BENZ USA

Location

The KEYLESS-GO control unit is located on the right in the trunk behind the side paneling.

Tasks

The KEYLESS-GO control unit has the following purposes:

Reading in of sensors

The input factors are read in via the following connections:

Direct line

The signals from the following components are read via a direct line:

Driver door KEYLESS-GO door handle (A17/5) (with code 889 (KEYLESS-GO) or with code 896 (Vehicle access and drive authorization via mobile phone))
Passenger door KEYLESS-GO door handle (A17/6) (with code 889 (KEYLESS-GO))
Left rear KEYLESS-GO door handle (A17/3) (with code 889 (KEYLESS-GO))
Right rear KEYLESS-GO door handle (A17/4) (with code 889 (KEYLESS-GO))
FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier (A2/18)

KEYLESS-GO LIN (with CODE 871 (HANDS-FREE ACCESS))

The signals from the rear switching module (N38) are read in by the KEYLESS-GO LIN.

Interior CAN

The signals are read in by the KEYLESS-GO control unit via the interior CAN.

The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).

Evaluation of input factors

The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Actuation of components

The following components are actuated via a direct line:

Wiring diagram for KEYLESS-GO control unit

PE80.61-P-2101-97XBA