Nissan Sentra Service Manual: 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 above table (Ambient air temperature-to-operating pressure table) since the standard (usual) pressure, however, differs from vehicle to vehicle.
Symptom table
Heater and air conditioning system symptoms
Symptom table
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Noise
Symptom table
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Other materials:
Air flow charts
The following charts show the button and dial
positions for MAXIMUM AND QUICK heating,
cooling or defrosting. The air recirculation
button should always be in the OFF position
for heating and defrosting.
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Vents
Adjust air flow direction by moving the vent
slides.
Open or close the vents by using the dial. Move
the dial toward the to open the
vents or
toward the to close them.
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Can communication circuit
Diagnosis procedure
1.CONNECTOR INSPECTION
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect all the unit connectors on CAN communication system.
Check terminals and connectors for damage, bend and loose connection.
Is the inspection resu ...
