Trunk lid control unit, component description - GF80.20-P-6050FL

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MODEL 212.0 with CODE (881) Remote trunk closing (RTC [HDFS])

Fig 1: Trunk Lid Control Unit Function Diagram - Model 212.0

Courtesy of MERCEDES-BENZ USA

Location

The trunk lid control unit is located in the center below the rear shelf in the trunk

Task

The trunk lid control unit has the following tasks:

Reading in of sensors and signals
Evaluation of input factors
Actuation of components

Reading in of sensors and signals

The input factors are read in with the following connections:

Direct line
Interior CAN (CAN B)

Direct line

The following sensor is read in via a direct line:

Trunk lid position sensor (B24/16)

Interior CAN

The following signals are read in over the interior CAN:

Left front door control unit (N69/1):

Status of driver trunk lid control button (S15/3)
By the rear SAM control unit with fuse and relay module (N10/2):
Status of trunk lid rotary tumbler switch (M14/7s1)
Status of trunk lid control button (S62/36)

From the instrument cluster (A1):

Vehicle speed signal

Evaluation of input factors

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

Actuation of components

The following components are actuated with a direct line:

Trunk lid lock element (M14/31)
Trunk lid control electric motor (M51/3m1)

Electric wiring diagram for trunk lid control unit

PE72.20-P-2103-97DAA