Fiat ULYSSE 2.0 16v fino a 04/03 – ENGINE COOLING – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring Diagram - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

ENGINE COOLING WIRING DIAGRAM Fiat ULYSSE 2.0 16v fino a 04/03

Components - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

Component code	Description	Reference to the assembly
A001	Battery	5530B
B001	Engine compartment junction unit	5505A
C011	Right front earth	-
C020	Passenger dashboard earth	-
H001	Ignition switch	5520A
J030	Engine fan speed 1 relay	-
J031	Engine fan speed 2 relay	-
J032	Engine fan speed 2 relay	-
K036	Engine coolant temperature sensor/sender unit	1056B
K120	Linear sensor (for climate control)	-
M001	Body computer	5505A
M010	Engine management control unit	1060G
N011	Engine fan motor	1088E
O010	Engine fan adjustment resistance	-
O012	Engine fan 2 adjustment resistance	-

Location Components - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

ENGINE COOLING LOCATION COMPONENTS Fiat ULYSSE 2.0 16v fino a 04/03

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Components - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

Component code	Description	Reference to the assembly
A001	Battery	5530B
B001	Engine compartment junction unit	5505A
C011	Right front earth	-
C020	Passenger dashboard earth	-
H001	Ignition switch	5520A
J030	Engine fan speed 1 relay	-
J031	Engine fan speed 2 relay	-
J032	Engine fan speed 2 relay	-
K036	Engine coolant temperature sensor/sender unit	1056B
K120	Linear sensor (for climate control)	-
M001	Body computer	5505A
M010	Engine management control unit	1060G
N011	Engine fan motor	1088E
O010	Engine fan adjustment resistance	-
O012	Engine fan 2 adjustment resistance	-

Description - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

The engine radiator and air conditioner condenser cooling system consists of two fans operated at three different speeds achieved by means of an additional resistance:the first speed is activated at an initial engine coolant temperature level or a certain air conditioning refrigerant fluid pressure;the second speed is engaged at a higher temperature or pressure;the third speed is engaged at even greater temperature or pressure values.The fans are operated by means of three specific relays located near the radiator.

Operational Description - ENGINE COOLING - Fiat ULYSSE 2.0 16v fino a 04/03

Engine control unit M010 controls the operation of the engine cooling fan according to data supplied by linear sensor K120 and engine coolant sensor K036.Both sensors are connected directly to the engine control unit; K036 to pins E4, D4 (or D2, D3), while K120 is connected to pins H4, H2 and F2 of connector A.Depending on the data supplied by the two sensors, the control unit M010 and the body computer node M001, either activate the fan N011 at three different speeds or do not.Operation at first speed:The engine management control unit energizes relay J030, pin 2 from pin D4 connector A; the relay coil is supplied by the engine compartment junction unit B001, from pin 14 connector C, by the line protected by fuse F08 and operated by a specific relay.When the relay is energized, it supplies the fan N011, by means of the two resistances O010 and O012 through the line coming from the junction unit B001, pin 6 connector G protected by fuse FM6: it therefore turns at the first speed.Operation at second speed:The body computer node M001 energizes relay J031, pin 2 from pin 30 connector M; the relay coil is supplied by the engine compartment junction unit B001, from pin 10 connector C, by the line protected by fuse F01.When the relay J031 is energized, it supplies the fan N011, by means of the single resistance O012 through the line coming from the junction unit B001, pin 6 connector G protected by fuse MF6: it therefore turns at the second speed.Operation at third speed:The engine management control unit energizes relay J032, pin 2 from pin B2 connector A; the relay coil is supplied by the engine compartment junction unit B001, from pin 14 connector C, by the line protected by fuse F08 and operated by a specific relay.When the relay J032 is energized, it supplies the fan N011 directly without passing through the resistances, through the line coming from the junction unit B001, pin 1 connector G protected by fuse MF1: it therefore turns at the third speed.