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

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MODEL 212 with CODE 889 (Keyless Go)

Shown on model 212.0 up to 28.2.13

Fig 1: KEYLESS-GO Control Unit - Shown On Model 212.0 Up To 28.2.13

Courtesy of MERCEDES-BENZ USA

Illustrated on model 212.0 as of 1.3.13

Fig 2: KEYLESS-GO Control Unit - Shown On Model 212.0 As Of 1.3.13

Courtesy of MERCEDES-BENZ USA

Location

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

Task

The Keyless Go control unit has the following purposes:

Reading in of sensors
Evaluation of input factors
Actuation of components

Reading in of sensors

The input factors are read in via the following connections:

Direct line
KEYLESS-GO-LIN (LIN B27) (as of 1.3.13)
Interior CAN (CAN B)

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)

KEYLESS-GO-LIN (LIN B27) (as of 1.3.13)

The signals from the rear switching module (N38) (with code (871) Sensors for trunk lid opening/closing) are read in 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 actuation of the components takes place via the following connections:

Direct line
Interior CAN

Direct line

The following components are actuated via a direct line:

Trunk KEYLESS-GO antenna (A2/35)

Left rear door KEYLESS-GO antenna (A2/39)
Right rear door KEYLESS-GO antenna (A2/41)
Interior KEYLESS-GO antenna (A2/61)

Interior CAN

The signals are transmitted 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).

Wiring diagram for Keyless Go control unit

MODEL 212 with CODE 889 (Keyless Go)

PE80.61-P-2101-97DAA