Head-Up Display, Component Description - GF54.30-P-6140FH

Model 238

Up To Model Year 2021

with code 463 (Head-up display)

Fig 1: Head-Up Display Components Location - Model 238 Up To Model Year 2021 With Code 463 (Shown On Model 238.3)

Courtesy of MERCEDES-BENZ USA

Shown on model 238.3

Location

The head-up display is in a recess in the instrument panel and secured to the crossmember of the instrument panel.

Tasks

The head-up display projects driving-relevant information (e.g. speed, navigation information) onto the windshield and into the field of view of the driver. Only information relevant to the displays in the instrument cluster (A1) is displayed.

The heads-up display is responsible for the following:

Reading in of sensors and signals
Evaluation of input factors
Output of signals

Reading in of sensors and signals

The heads-up display reads in the input factors over the following connections:

High-speed video link (HSVL)
User interface CAN (CAN HMI)

HSVL

The head-up display receives the picture information processed by the instrument cluster, via the HSVL line.

User interface CAN

The head-up display reads in the input factors via the user interface 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.

Output of signals

The head-up display sends status information via the user interface CAN to the instrument cluster and diagnostic data via the user interface CAN to the electronic ignition lock control unit (N73).

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

Wiring diagram for head-up display control unit

PE54.30-P-2104-97DCA