Component description for KEYLESS-GO control unit - GF80.61-P-4204GR

MODEL 166 up to model year 2016 with CODE 889 (Keyless Go)

Shows model 166.0

Fig 1: Identifying Keyless-Go Control Unit - Shows Model 166.0

Courtesy of MERCEDES-BENZ USA

Location

The KEYLESS-GO control unit is located below the left rear seat.

Task

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 direct lines:

Left front KEYLESS-GO door handle (A17/1)
Right front KEYLESS-GO door handle (A17/2)
Left rear KEYLESS-GO door handle (A17/3)
Right rear KEYLESS-GO door handle (A17/4)
FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier (A2/18)

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