Fiat GRANDE PUNTO 1.9 Multijet – ENGINE COOLING – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - ENGINE COOLING - Fiat GRANDE PUNTO 1.9 Multijet

ENGINE COOLING - WIRING DIAGRAM Fiat GRANDE PUNTO 1.9 Multijet

COMPONENTS - ENGINE COOLING - Fiat GRANDE PUNTO 1.9 Multijet

Component code	Description	Reference to the operation
B001	JUNCTION UNIT
B099	MAXI FUSE BOX ON BATTERY
C010	LEFT FRONT EARTH	-
J29	ENGINE FANS REMOTE CONTROL RELAY	-
J030	ENGINE FAN SPEED 1 RELAY	-
K120	LINEAR SENSOR FOR FANS
M010	ENGINE MANAGEMENT ECU
N011	FAN MOTOR
N012	ENGINE FAN MOTOR - 2
O010	ENGINE FAN ADJUSTMENT RESISTANCE - 1
O012	ENGINE FAN 2 ADJUSTMENT RESISTANCE

COMPONENT LOCATION - ENGINE COOLING - Fiat GRANDE PUNTO 1.9 Multijet

ENGINE COOLING - COMPONENT LOCATION Fiat GRANDE PUNTO 1.9 Multijet

すべての配線図にアクセスする車

Component code	Description	Reference to the operation
B001	JUNCTION UNIT
B099	MAXI FUSE BOX ON BATTERY
C010	LEFT FRONT EARTH	-
J29	ENGINE FANS REMOTE CONTROL RELAY	-
J030	ENGINE FAN SPEED 1 RELAY	-
K120	LINEAR SENSOR FOR FANS
M010	ENGINE MANAGEMENT ECU
N011	FAN MOTOR
N012	ENGINE FAN MOTOR - 2
O010	ENGINE FAN ADJUSTMENT RESISTANCE - 1
O012	ENGINE FAN 2 ADJUSTMENT RESISTANCE

DESCRIPTION - ENGINE COOLING - Fiat GRANDE PUNTO 1.9 Multijet

The engine radiator and air conditioner condenser cooling system consists of two fans operated at 4 different speeds corresponding to three coolant temperature levels or at a certain air conditioner coolant pressure:The fans are operated by three specific relays located in the engine compartment control unit and an additional two remote control switches located on the fan duct.The supply line for the fans is protected by two special fuses, located in the engine compartment junction unit.

FUNCTIONAL DESCRIPTION - ENGINE COOLING - Fiat GRANDE PUNTO 1.9 Multijet

Relays T1 and T2 of engine compartment control unit B1 and external relays J29 and J30 manage the operation of both fans N11 and N12 at four different speeds: the coil power lines are protected by fuses F12 and F13 , also in engine compartment control unit B1 .If the engine coolant reaches the first temperature level or linear sensor K120 indicates to the control unit M10 pin 13 of connector A - that a certain pressure level has been reached, control unit M10 sends a signal from pin 90 of connector A that excites the fan 1st speed relay T1, which then sends power to fans N11 and N12 that are joined in series via switch J29: both fans thus turn together at the first speed.The linear sensor K120 receives a power supply and reference earth from the engine management control unit M10, pin 12 and 22 of connector A.If the engine coolant reaches the first temperature level or linear sensor K120 indicates to the control unit M10 - that a certain pressure level has been reached, control unit M10 sends a signal from pin 69 of connector A that excites the relays T20, J29 and J30, which then send power to fans N11 and N12 via additional resistances O10 and O12: both fans thus turn together at the second speed.If the engine coolant reaches the third temperature level or linear sensor K120 indicates to the control unit M10 - that a certain pressure level has been reached, control unit M10 sends a signal from both pin 90 and pin 69 of connector A that excites the relays T1, T20, J29 and J30, which then send power to fan N11 directly and to N12 via additional resistance O12:If the engine coolant reaches the fourth temperature level or linear sensor K120 indicates to the control unit M10 - that a certain pressure level has been reached, control unit M10 also sends a signal from pin 94 of connector A that excites the relays TT1, T2, T20, J29 and J30, which then send power to fans N11 and N12, which then turn together at maximum speed