Fiat 500 1.4 16v – ELECTRIC STEERING – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - ELECTRIC STEERING - Fiat 500 1.4 16v

ELECTRIC STEERING - WIRING DIAGRAM Fiat 500 1.4 16v

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COMPONENTS - ELECTRIC STEERING - 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
H090	SWITCH CONTROL PANEL
M001	BODY COMPUTER
M086	ELECTRIC STEERING CONTROL UNIT

COMPONENT LOCATION - ELECTRIC STEERING - Fiat 500 1.4 16v

ELECTRIC STEERING - COMPONENT LOCATION Fiat 500 1.4 16v

Get access to all wiring diagrams of the car

Component Code	Description	Reference to the operation
A001	BATTERY
B001	JUNCTION UNIT
C015	DASHBOARD EARTH, DRIVER'S SIDE	-
E050	INSTRUMENT PANEL
H001	IGNITION SWITCH
H090	SWITCH CONTROL PANEL
M001	BODY COMPUTER
M086	ELECTRIC STEERING CONTROL UNIT

DESCRIPTION - ELECTRIC STEERING - Fiat 500 1.4 16v

The EPS (Electrical Hydraulic Power Steering) is a power assisted steering device designed to reduce the effort required for steering the vehicle by using the torque from an electric motor.An electronic control unit manages and controls the system: processing the input information and using the internal operating logic, the control unit determines the direction of rotation and the supply current for the electric motor producing the desired servo-assistance effect.A CITY button above the heater/air conditioning controls in the dashboard can be used to alter the power-assistance level of the electric steering.There is an electric steering failure warning light in the instrument panel. A special symbol in the instrument panel display shows that the CITY function is on.For more details,The power and ignition-controlled supply lines for the electric steering control unit are protected by two dedicated fuses located in the engine compartment junction unit.

FUNCTIONAL DESCRIPTION - ELECTRIC STEERING - Fiat 500 1.4 16v

The electrohydraulic power assisted steering control unit M086 controls and regulates the electrically operated steering system.The direct battery power supply for control unit M086 (pin A of connector A) arrives along the line protected by fuse F05 of the engine compartment junction unit B001 (pin 20 of connector B). Pin B of connector A of M086 is connected to the negative battery terminal A001 (connector C).The ignition-operated power supply (15/54) arrives via a line protected by fuse F24 of B001 (pin 13 of connector B) at pin 1 of connector B of M086.The Body Computer M001 receives a direct battery power supply (pin 1 of connector A) protected by fuse F01 of the engine compartment junction unit B001 (pin 18 of connector B); it also receives an ignition-controlled power supply (INT) at pin 11 of connector E.The Body Computer M001 is also connected to the driver''s dashboard earth C015 via pins 9 and 10 of connector E.Control unit M086 is connected, from pins 2 and 3 of connector B, to the Body Computer M001 (pins 44 and 45 of connector B), via the C-CAN.Control unit M086 is connected, from pins 7 and 8, with the other network nodes.The Body Computer M001 is connected, via the B-CAN, with the instrument panel E050 to which it sends signals for activating the electric steering failure warning light and for signalling that the CITY function is on in the display.The CITY button (less steering effort), located in the switch control unit H090, receives a reference earth from pin 37 of connector D of M001 and sends the signal for turning the CITY function on to pin 28 of the same connector.