TRIP COMPUTER - OPERATIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The ignition-operated power supply (INT) for the instrument panel E50 reaches pin 1 of connector A via the line for fuse F37 of the junction unit under the dashboard B2; the direct power supply reaches pin 2 of connector A via the fuse line F53 of the junction 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 entire CAN: the signal for the electronic speedometer (from the ABS control unit M50) is received via the CAN: the same signal is replicated from pin 16 of M50 at pin 7 of connector A of the Body Computer M1.

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

The fuel level gauge is controlled according to the signals coming from the level gauge located in the electric fuel pump assembly N40 - at pins 4 and 15 of connector D of the Body Computer M1 and from there via the CAN to the instrument panel E50.

The TRIP electronic module uses these signals to process information on instantaneous and average fuel consumption, range, average speed, Km travelled, duration etc.

The Trip Computer zeroing button, located in the steering column switch unit H5, sends an earth signal to pin 6 of connector A of E50.