Fiat 500 1.4 16v – TRIP COMPUTER – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - TRIP COMPUTER - Fiat 500 1.4 16v

TRIP COMPUTER - WIRING DIAGRAM Fiat 500 1.4 16v

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COMPONENTS - TRIP COMPUTER - Fiat 500 1.4 16v

Component Code	Description	Reference to the operation
A001	BATTERY
B001	JUNCTION UNIT
C015	DASHBOARD EARTH, DRIVER'S SIDE	-
E050	INSTRUMENT PANEL
H001	IGNITION SWITCH
H005	STEERING COLUMN SWITCH UNIT
M001	BODY COMPUTER
M051	Braking system control unit
N040	FUEL PUMP AND LEVEL GAUGE

COMPONENT LOCATION - TRIP COMPUTER - Fiat 500 1.4 16v

TRIP COMPUTER - COMPONENT LOCATION Fiat 500 1.4 16v

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Component Code	Description	Reference to the operation
A001	BATTERY
B001	JUNCTION UNIT
C015	DASHBOARD EARTH, DRIVER'S SIDE	-
E050	INSTRUMENT PANEL
H001	IGNITION SWITCH
H005	STEERING COLUMN SWITCH UNIT
M001	BODY COMPUTER
M051	Braking system control unit
N040	FUEL PUMP AND LEVEL GAUGE

DESCRIPTION - TRIP COMPUTER - Fiat 500 1.4 16v

The Trip Computer shows vehicle trip, fuel consumption and mileage details on the control panel display.There are two fully independent Trip Computer modes (A and B); the displays can be activated by pressing the TRIP button on the right-hand lever of the steering wheel interface.The data display mode follows a preset order:TRIP A:Range - Distance travelled - Average fuel consumption - Instantaneous fuel consumption - Average speed - Trip time.TRIP B:Distance travelled - Average fuel consumption - Average speed - Trip time.Both functions can be zeroed (reset - start of a new journey).Trip B is a function that can be excluded via the instrument panel Set-up menu, by operating the buttons on the right-hand side of the panel.For further details,Trip Computer data is calculated inside the instrument panel.The instrument panel is a CAN node through which information is exchanged with the Body Computer and with the other electronic units.This diagram shows the operation of instrument panel functions that also affect the Trip Counter.

FUNCTIONAL DESCRIPTION - TRIP COMPUTER - Fiat 500 1.4 16v

The ignition-operated power supply (INT) for instrument panel E050 reaches pin 3 via a line protected by fuse F37 of Body Computer M001 (pin 7 of connector E); the direct battery power supply reaches pin 2 of E050 via a line protected by fuse F53 of the Body Computer (pin 14 of connector E).Pin 1 of instrument panel E050 is connected to driver-side dashboard earth C015.Body Computer M001 receives a direct battery power supply (pin 1 of connector A) protected by fuse F01 of engine compartment junction unit B001 (pin 18 of connector B); it also receives an ignition-operated power supply (INT) at pin 11 of connector E.Body Computer M001 is also connected to driver-side dashboard earth C015 via pins 9 and 10 of connector E.Instrument panel E050 is connected from pins 5 and 6 with Body Computer M001 (pins 18 and 20 of connector D) and via the latter to the entire CAN.Body Computer M001 (pins 44 and 45 of connector B) receives the speedometer signal from braking system control unit M051 (pins 26 and 14) via the C-CAN, and forwards it to instrument panel E050.The signal relating to the fuel level is managed according to the data provided by the level detector located in electric fuel pump unit N040. The Body Computer provides the sensor with a reference earth (pin 17 of connector F) and receives a proportional signal at pin 4 of the same connector, and forwards it to instrument panel E050 via the B-CAN.Engine management control unit M010 sends the signal coming from engine rpm sensor K046 to the instrument panel via the CAN.