Instrument cluster, component description - GF54.30-P-6000GM

MODEL 164.1 (except 164.195) as of model year 2009/YoM 08 model refinement package

MODEL 164.8, 251.0/1 as of model year 2009/YoM 08

Up to 30.6.11 without code (494) USA version

Fig 1: Identifying Instrument Cluster Components

Courtesy of MERCEDES-BENZ USA

As of 1.7.11 without code (494) USA version

Fig 2: Identifying Instrument Cluster Components

Courtesy of MERCEDES-BENZ USA

Up to 30.6.11 with code (494) USA version

Fig 3: Identifying Instrument Cluster Components

Courtesy of MERCEDES-BENZ USA

As of 1.7.11 with code (494) USA version

Fig 4: Identifying Instrument Cluster Components

Courtesy of MERCEDES-BENZ USA

Location

The instrument cluster is located in the dashboard on the driver-side.

Task

The instrument cluster has the following tasks:

Reading in of sensors, pickups and signals
Evaluation of input factors
Actuation of components
Output of acoustic and information warnings
Output of signals

Reading in of sensors, pickups and signals

The input factors are read in via the following connections:

Interior CAN (CAN B)
Engine compartment CAN (CAN C)

Interior CAN

The signals are read in by the instrument cluster over the interior CAN.

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

Engine compartment CAN

The signals are read in by the instrument cluster over the engine compartment 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 instrument cluster directly actuates all internal actuators (e.g. indicator and warning lamps, stepper motors of displays, multifunction display) as well as the instrument illumination.

Output of acoustic and information warnings

The instrument cluster actuates the warning buzzer (A1h1) to issue acoustic and information warnings, which are requested by the systems installed in the vehicle.

The "audible turn signal indicator" is realized by actuating the audible turn signal indicator (A1h2).

Output of signals

The signals are issued over the following connections:

Interior CAN
Engine compartment CAN

Interior CAN

The signals are sent by the instrument cluster over the interior CAN. The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).

Engine compartment CAN

The signals are sent by the instrument cluster over the engine compartment CAN.

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

	Wiring diagram for instrument cluster (IC) control unit	Model 164	PE54.30-P-2101-97MAA
		Model 251	PE54.30-P-2101-97RAA