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WIRING DIAGRAM - ENGINE COOLING - Fiat GRANDE PUNTO 1.3 Multijet
COMPONENTS - ENGINE COOLING - Fiat GRANDE PUNTO 1.3 Multijet
| Component code | Description | Reference to the operation |
| B001 | JUNCTION UNIT | |
| B099 | MAXI FUSE BOX ON BATTERY | |
| C010 | LEFT FRONT EARTH | - |
| M010 | ENGINE MANAGEMENT ECU | |
| N011 | FAN MOTOR | |
| O010 | ENGINE FAN ADJUSTMENT RESISTANCE - 1 |
COMPONENT LOCATION - ENGINE COOLING - Fiat GRANDE PUNTO 1.3 Multijet
DESCRIPTION - ENGINE COOLING - Fiat GRANDE PUNTO 1.3 Multijet
The engine radiator cooling system consists of an electric fan operated at two different speeds:- the first speed is activated at an intial engine coolant temperature level;- the second speed is engaged at a higher temperature.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 GRANDE PUNTO 1.3 Multijet
Relays T1 and T2 of engine compartment control unit B1 manage the activation of two speed fan N11: the coil power lines are protected by fuses F12 and F13 , also in engine compartment control unit B1 .Both are energized by an earth control signal coming from the engine management control unit M10.If the engine coolant reaches a first temperature level, control unit M10 sends a signal - from pin 7 of connector A - to excite fan 1st speed relay T1, which then sends power to fan N11 via additional resistance O10: the fan turns at the first speed (slow).If the engine coolant reaches a first temperature level, control unit M10 sends a signal - from pin 8 of connector A - to excite fan 2nd speed relay T2, which then sends power to fan N11 directly: the fan turns at the maximum speed.
