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

    Function diagnosis
    ...

    Overheating cause analysis
    Troubleshooting Chart ...

    Other materials:

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    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 ...

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