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

MODEL 216.3, 221.0 /1 with CODE (889) KEYLESS-GO as of model year 2009 /YoM 08

Shown on model 221.0 up to 31.8.10

Fig 1: Locating Keyless-Go Control Unit

Courtesy of MERCEDES-BENZ USA

Location

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

As of 1.9.10 the KEYLESS-GO control unit behind the left paneling in the trunk.

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 following components are read in via a direct line:

Left KEYLESS-GO sensor unit (B67/1) (model 216)
Left front KEYLESS-GO sensor unit (B67/1) (model 221)
Right KEYLESS-GO sensor unit (B67/2) (model 216)
Right front KEYLESS-GO sensor unit (B67/2) (model 221)
Left rear KEYLESS-GO sensor unit (B67/3) (model 221)
Right rear KEYLESS-GO sensor unit (B67/4) (model 221)
Rear window antenna amplifier module (A2/)A2/12

Interior CAN

The following sensors are read in via the interior CAN:

From EIS control unit (N73) for KEYLESS-GO start/stop button (S2/3)
From Rear SAM control unit with fuse and relay module (N10/2) for trunk lid external operation switch (S88/8)
From ESP control unit (N47-5) (except model 221.095/195) or regenerative brake system control unit (N30/6) (on model 221.095/195) via central gateway control unit (N93) for brake light switch (S9/1)
From instrument cluster (A1) via central gateway control unit for vehicle speed signal
From TLC control unit (N121) (model 221 with code (881) Remote trunk closing (RTS), model 216) for TLC button (S62/26)

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

Components are actuated with the following connection:

Direct line

The following components are actuated via a direct line:

trunk KEYLESS-GO antenna (A2/35)
Left door KEYLESS-GO antenna (A2/39) (model 216)
Right door KEYLESS-GO antenna (A2/41) (model 216)
Left rear door KEYLESS-GO antenna (A2/39) (model 221)
Right rear door KEYLESS-GO antenna (A2/41) (model 221)
Center console KEYLESS-GO antenna (A2/60)
Interior compartment KEYLESS-GO antenna (A2/61) (up to 31.8.10)
Left door lock unit (A85) (model 216)
Left front door lock unit (A85) (model 221)
Right door lock unit (A85/1) (model 216)
Right front door lock unit (A85/1) (model 221)
Left rear door lock unit (A85/3) (model 221)
Right rear door lock unit (A85/4) (model 221)

	Wiring diagram for KEYLESS-GO control unit	Model 216	PE80.61-P-2101-97CAA
		Model 221	PE80.61-P-2101-97SAA