Nissan Murano: Heater & Air Conditioning System :: Periodic Maintenance / Performance Test
INSPECTION PROCEDURE
-
Connect recovery/recycling/recharging equipment (for HFO-1234yf) or manifold gauge.
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Start the engine, and set to the following conditions.
Test condition Surrounding condition Indoors or in the shade (in a well-ventilated place) Nissan Murano Vehicle condition Door Closed Door glass Full open Hood Open Engine speed Idle speed A/C condition Temperature control switch or dial Full cold A/C switch ON Air outlet VENT (ventilation) Intake door position Recirculation Fan (blower) speed Maximum speed set -
Maintain test condition until A/C system becomes stable (approximately 10 minutes).
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Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-operating pressure” are within the specified value.
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When test results are within the specified value, inspection is complete.
If any test result is out of the specified value, perform diagnosis by gauge pressure. Refer to Symptom Table.
RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE
| Inside air (Recirculating air) at blower assembly inlet | Vent outlet temperature °C (°F) | ||
|---|---|---|---|
|
Relative humidity % |
Air temperature °C (°F) | 1st Row | 2nd Row |
| 50 – 60 | 25 (77) | 9.7 – 10.8 (49 – 51) | 10.8 – 12.0 (51 – 54) |
| 30 (86) | 14.4 – 16.0 (58 – 61) | 16.5 – 18.3 (62 – 65) | |
| 35 (95) | 17.6 – 19.5 (64 – 67) | 19.4 – 21.6 (67 – 71) | |
| 40 (104) | 19.9 – 22.1 (68 – 72) | 21.6 – 24.0 (71 – 75) | |
| 60 – 70 | 25 (77) | 10.8 – 11.9 (51 – 53) | 12.0 – 13.2 (54 – 56) |
| 30 (86) | 16.0 – 17.6 (61 – 64) | 18.3 – 20.1 (65 – 68) | |
| 35 (95) | 19.5 – 21.5 (67 – 71) | 21.6 – 23.8 (71 – 75) | |
| 40 (104) | 22.1 – 24.3 (72 – 76) | 24.0 – 26.4 (75 – 80) | |
AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE
| Fresh air |
High-pressure (Discharge side) kPa (kg/cm2, psi) |
Low-pressure (Suction side) kPa (kg/cm2, psi) | |
|---|---|---|---|
|
Relative humidity % |
Air temperature °C (°F) | ||
| 50 – 70 | 25 (77) |
953 – 1,165 (9.7 – 11.9, 138 – 169) |
225 – 275 (2.30 – 2.81, 33 – 40) |
| 30 (86) |
1,192 – 1,456 (12.2 – 14.9, 173 – 211) |
273 – 333 (2.78 – 3.40, 40 – 48) |
|
| 35 (95) |
1,306 – 1,597 (13.3 – 16.3, 189 – 232) |
313 – 383 (3.20 – 3.91, 45 – 56) |
|
| 40 (104) |
1,430 – 1,748 (14.6 – 17.8, 207 – 253) |
345 – 422 (3.52 – 4.30, 50 – 61) |
|
Oil
Description
MAINTENANCE OF OIL LEVELThe compressor oil is circulating in the system together with the refrigerant. It is necessary to fill compressor with oil when replacing A/C system parts or when a large amount of refrigerant leaks are detected...
Other information:
Nissan Murano (Z52) 2015-2024 Owners Manual: Intelligent Forward Collision Warning (I-FCW)
WARNING Failure to follow the warnings and instructions for proper use of the I-FCW system could result in serious injury or death. The I-FCW system can help warn the driver before a collision occurs but will not avoid a collision. It is the driver’s responsibility to stay alert, drive safely and be in control of the vehicle at all times...
Nissan Murano (Z52) 2015-2024 Service Manual: Warning Chime System
System Description SYSTEM DIAGRAMDESCRIPTIONCombination MeterThe combination meter sounds the alarm buzzer installed in the combination meter when receiving the buzzer output signal transmitted from each unit.BCMBCM receives signals from various units and transmits a buzzer output signal to the combination meter via CAN communication if it judges that the warning buzzer should be activated...
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