INSTRUMENT PANEL - Functional description

Functional description

The ignition-operated power supply (INT) of the instrument panel E50 reaches pin 1 of connector A through the line of fuse F37 of the unit under the dashboard B2; the direct supply reaches pin 2 of connector A through the line of fuse F53 of the unit under the dashboard B2; pin 7 of connector A is earthed (earth controlled by the Body Computer M1 ).

The instrument panel E50 is connected from pins 3 and 4 of connector A to the Body Computer M1 and via the latter to the whole CAN network: via CAN the signal for the electronic speedometer arrives (coming from the ABS control unit M50): this signal is replicated from pin 16 of M50 to pin 7 of connector A of the Body Computer M1.

The electronic rev counter receives the rpm signal coming via CAN from the engine management control unit M10.

The fuel gauge is controlled in accordance with the signals coming from the fuel gauge sender unit located in the fuel pump assembly N40 - at pins 4 and 15 of connector D of the Body Computer M1, and from here via CAN to the instrument panel E50.

The low brake fluid/handbrake applied warning light comes on through a signal from the handbrake switch I40, which reaches pin 24 of connector E of the Body Computer M1, or from the signal from the low brake fluid level sensor K25, which reaches pin 18 of connector A of M1.

All these signals are transferred via CAN to the instrument panel E50.

Instrument panel E50 also contains electronic modules that control panel dimmed lighting and other controls See E2530 INSTRUMENT LIGHTING, headlamp alignment adjustment and the robotized gearbox See E3080 HEADLAMP AGLINMENT CORRECTOR buzzer See E7051 ROBOTIZED GEARBOX.

The TRIP function is shown in the relevant diagram See E4080 TRIP COMPUTER.