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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2012 (Automatic Air Conditioner) >> Trouble Diagnosis >> Insufficient Cooling >> Trouble Diagnoses For Unusual Pressure >> Low-pressure Side Sometimes Becomes Negative

Low-pressure Side Sometimes Becomes Negative

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
GAUGE INDICATION AND PROBABLE CAUSE

Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes becomes negative.
G04903428
  • Air conditioning system does not function and does not cyclically cool the compartment air.
  • The system constantly functions for a certain period of time after compressor is stopped and restarted.
 Refrigerant does not discharge cyclically.
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Moisture is frozen at expansion valve outlet and inlet.
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Water is mixed with refrigerant.
  • Drain water from refrigerant or replace refrigerant.
  • Replace liquid tank.
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