Nissan Versa (N17): Performance test

Nissan Versa 2nd generation (N17) Service Manual / Ventilation, heater & air conditioner / Heater & air conditioning system (HA) / Performance test

Inspection

INSPECTION PROCEDURE

  1. Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.
  2. Start the engine, and set to the following condition.

Test condition                                           

  1. Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
  2. Check that test results of "recirculating-to-discharge air temperature" and "ambient air temperature-tooperating pressure" are within the specified value.
  3. 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 HA "Symptom Table".

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE   

AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE   

SYMPTOM DIAGNOSIS

HEATER AND AIR CONDITIONING SYSTEM SYMPTOMS

Symptom Table

SYMPTOM TABLE

SYMPTOM TABLE

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

Diagnose using a manifold gauge whenever system's high and/or low side pressure(s) is/are unusual. The marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Refer to Ambient air temperature-to-operating pressure table since the standard (usual) pressure, differs from vehicle to vehicle.

Symptom Table

Symptom Table

NOISE

Symptom Table

Symptom Table

REMOVAL AND INSTALLATION

Oil

Description MAINTENANCE OF OIL LEVEL The 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 ...

Compressor

Exploded View 1. Compressor Removal and Installation CAUTION: Perform oil return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or oil i ...

Other materials:

Hood
1. Pull the hood lock release handle 1 located below the instrument panel until the hood springs up slightly. 2. Locate the lever 2 in between the hood and grille and push the lever sideways with your fingertips. 3. Raise the hood 3 . 4. Remove the support rod and insert it into the ...

A/C Unit assembly
Exploded View 1. Cap 2. Steering member 3. Cap 4. Bracket 5. A/C unit assembly Pawl Removal and Installation CAUTION: Perform oil return operation before each refrigeration system disassembly. However, if a large amount of refrigerant or oil is detected, do not perform oil return operati ...

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