Nissan Altima 2007-2012 Service Manual: Cooling system
Cooling Circuit
1. Thermostat
2. Water control valve
3. Water control valve housing (Water outlet)
4. Cylinder block (Thermostat housing)
5. Water inlet
6. Radiator
7. Water pump
8. Cylinder block
9. Cylinder head
A. Open
B. Closed
C. To electric throttle control
D. To oil cooler
E. To heater
F. From heater
G. From electric throttle control
H. From oil cooler
Schematic
1. Radiator
2. Water inlet
3. Reservoir tank
4. Thermostat
5. Thermostat housing
6. Water pump
7. Cylinder head
8. Cylinder block
9. Water control valve
10. Water control valve housing
11. Heater
12. Oil cooler
13. Electric throttle control
A. Open
B. Closed
Overheating cause analysis
Troubleshooting Chart
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Other materials:
P0507 ISC System
Description
The ECM controls the engine idle speed to a specified level via the fine
adjustment of the air, which is let into
the intake manifold, by operating the electric throttle control actuator. The
operating of the throttle valve is varied
to allow for optimum control of the engine idli ...
P1801 Vias control solenoid valve 2
Description
The VIAS control solenoid valve 2 cuts the intake manifold vacuum signal for
power valve 2 control. It
responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum
signal from the intake
manifold is cut. When the ECM sends an ON signal the coil pulls the plunger
...
P0125 ECT sensor
Description
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change i ...