Nissan Sentra B18 (2020-2025) Service Manual: System Description. Description
Description
Engine Cooling System
-
The radiator adopts a side flow aluminum radiator core.
-
A drive belt is adopted for water pump operation.
-
A shallow bottom is adopted for the cylinder block water jacket for optimizing cooling performance.
-
An electric cooling fan is adopted. The cooling fan is controlled by signals from the ECM (engine control module).
|
1. |
Water pump housing |
2. |
Water pump |
3. |
Water inlet |
|
4. |
Oil cooler |
5. |
Heater thermostat assembly (CVT models only) |
6. |
EGR cooler |
|
7. |
Electric throttle control actuator |
8. |
Water outlet |
A. |
View A |
|
B. |
From reservoir tank. Refer to Exploded View. |
C. |
From radiator. Refer to Exploded View. |
D. |
From heater core. Refer to Exploded View. |
|
E. |
To heater core. Refer to Exploded View. |
F. |
To CVT fluid warmer (CVT models only). Refer to Exploded View. |
G. |
From CVT fluid warmer (CVT models only). Refer to Exploded View. |
|
H. |
To radiator. Refer to Exploded View. |
Engine Cooling System Schematic
|
1. |
Water outlet |
2. |
Cylinder head |
3. |
Water control valve |
|
4. |
Cylinder block |
5. |
Water pump |
6. |
Water pump housing |
|
7. |
Water inlet |
8. |
Radiator |
9. |
Electric throttle control actuator |
|
10. |
EGR cooler |
11. |
Heater core |
12. |
CVT fluid warmer |
|
13. |
Heater thermostat assembly |
14. |
Oil cooler |
15. |
Reservoir tank |
|
A. |
High temperature |
B. |
Normal temperature |
|
1. |
Water outlet |
2. |
Cylinder head |
3. |
Water control valve |
|
4. |
Cylinder block |
5. |
Water pump |
6. |
Water pump housing |
|
7. |
Water inlet |
8. |
Radiator |
9. |
Electric throttle control actuator |
|
10. |
EGR cooler |
11. |
Heater core |
12. |
Reservoir tank |
|
13. |
Oil cooler |
A. |
High temperature |
B. |
Normal temperature |
Other materials:
B2070-68 Key Registration
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
(Trouble diagnosis
content)
DTC detecting condition
...
Intellignet Key Battery. Component Inspection
Component Inspection
Component Inspection
CHECK INTELLIGENT KEY BATTERY
Check by connecting a resistance (approximately
300 Ω) so that the current value becomes about 10 mA. Refer to Removal and Installation.
...
Periodic Maintenance. Cvt Fluid
Cvt Fluid
Inspection
Inspection
FLUID LEAKAGE
Check transaxle surrounding area (oil
seal and plug etc.) for fluid leakage.
If transaxle appears to have oil
seepage or a leak, follow the steps below to assist in a correct
diagnosis.
...