Fiat BRAVO 1.9 JTD 8v – ENGINE COOLING – – Manual Air Conditioning – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - ENGINE COOLING - Fiat BRAVO 1.9 JTD 8v

ENGINE COOLING - WIRING DIAGRAM Fiat BRAVO 1.9 JTD 8v

Get access to all wiring diagrams of the car

COMPONENTS - ENGINE COOLING - Fiat BRAVO 1.9 JTD 8v

Component code	Description	Reference to the operation
B001	JUNCTION UNIT
B099	MAXI FUSE BOX ON BATTERY	-
C001	BATTERY EARTH	-
K036	ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT
K120	LINEAR SENSOR FOR FANS
M010	ENGINE MANAGEMENT ECU
N011	FAN MOTOR
O010	ENGINE FAN ADJUSTMENT RESISTANCE - 1

COMPONENT LOCATION - ENGINE COOLING - Fiat BRAVO 1.9 JTD 8v

ENGINE COOLING - COMPONENT LOCATION Fiat BRAVO 1.9 JTD 8v

Get access to all wiring diagrams of the car

Component code	Description	Reference to the operation
B001	JUNCTION UNIT
B099	MAXI FUSE BOX ON BATTERY	-
C001	BATTERY EARTH	-
K036	ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT
K120	LINEAR SENSOR FOR FANS
M010	ENGINE MANAGEMENT ECU
N011	FAN MOTOR
O010	ENGINE FAN ADJUSTMENT RESISTANCE - 1

DESCRIPTION - ENGINE COOLING - Fiat BRAVO 1.9 JTD 8v

The radiator and air conditioner condenser cooling system consists of an electric fan operated at two different speeds:- the first speed is activated at a first engine coolant temperature level and a certain air conditioning refrigerant fluid pressure;- the second speed comes on at a higher temperature or pressure.The fan is operated by means of two specific relays located near the engine compartment junction unit.The supply line for the fan is protected by two special fuses, located in the engine compartment junction unit.

FUNCTIONAL DESCRIPTION - ENGINE COOLING - Fiat BRAVO 1.9 JTD 8v

Relays T6 and T7 of the engine compartment junction unit B1 manage the switching on of the two speed fan N11: the coil power lines are protected by fuses F6 and F7 , also in engine compartment junction unit B1 .Both are energized by an earth control signal coming from the engine management control unit M10.If the engine coolant reaches an initial temperature level, or the linear sensor K120 signals to the control unit M10 - pin 13 of connector A - that a certain pressure level has been reached, then the control unit M10 sends a signal - from pin 90 of connector A - which energizes the 1st speed fan relay T6 which sends the power supply to the fan N11 via the additional resistance O10: the fan turns at the first speed (slow).The engine temperature sensor K36 receives a reference earth from pin 41 of connector B of control unit M10, and sends a signal proportional to the engine coolant temperature to pin 58 of the same control unit.The linear sensor K120 receives a power supply and reference earth from the engine management control unit M10, pin 22 and 12 of connector A.If the engine coolant temperature reaches a higher level or linear sensor K120 indicates to control unit M10 that a higher pressure level has been reached, then control unit M10 sends a signal from pin 69 of connector A to fan 2nd speed relay T7, which then sends power to fan N11 directly: the fan turns at the maximum speed.