Instrument cluster, component description - GF54.30-P-6000LEH
MODEL 221.095/195
Shown without code (494) USA version
On vehicles with code (494) USA version the regenerative braking system indicator lamp is not shown by the symbol but by the "RBS" text [regenerative braking system].
Location
The instrument cluster is located in the dashboard on the driver-side.
Task
The instrument cluster has the following tasks:
- Reading in of signals
- Evaluation of input factors
- Actuating components
- Output of acoustic and information warnings
- Output of signals
Reading in of signals
The instrument cluster reads in input factors by means of the following connection:
- Central CAN (CAN F)
Central CAN
The signals are read in by the instrument cluster via the central CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
The central gateway control unit (N93) makes information from other control units on the central CAN available to the instrument cluster. The central gateway control unit serves as an interface with the following data bus systems:
- Interior CAN (CAN B)
- Diagnostic CAN (CAN D)
- Chassis CAN (CAN E)
- Front end CAN (CAN G)
Interior CAN
The central gateway control unit passes on signals provided on the interior CAN to the instrument cluster via the central CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Diagnostic CAN
The central gateway control unit passes on signals provided on the diagnosis CAN to the instrument cluster via the central CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Chassis CAN
The central gateway control unit relays the signals placed on the chassis CAN via the central CAN to the instrument cluster.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Front end CAN
The central gateway control unit relays the signals placed on the front end CAN via the central CAN to the instrument cluster.
The functions resulting therefrom are described in the corresponding 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.
Component actuation
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 output of signals is carried out over the following connection:
- Central CAN
- Chassis CAN
Central CAN
The signals are transmitted by the instrument cluster via the central CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
Chassis CAN
The signals are sent by the instrument cluster via the chassis CAN. The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).
| Wiring diagram for instrument cluster (IC) control unit | PE54.30-P-2101-97SAA |