Nissan Sentra Service Manual: Heater and air conditioning system symptoms

Symptom diagnosis

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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 ta ...

Other materials:

Exhaust gas (carbon monoxide)
WARNINGDo not breathe exhaust gases; they contain colorless and odorless carbon monoxide. Carbon monoxide is dangerous. It can cause unconsciousness or death. If you suspect that exhaust fumes are entering the vehicle, drive with all windows fully open, and have ...

Power supply and ground circuit
Diagnosis Procedure 1.CHECK FUSE Check that the following fuse is not fusing. Is the fuse fusing? YES >> Replace the fuse after repairing the applicable circuit. NO >> GO TO 2. 2.CHECK GROUND CONNECTION Turn ignition switch OFF Check ground connection E9 and E15. Refer ...

Precaution for Work
When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth. When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a ...