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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Refrigerant Pressure Sensor >> Diagnostic Procedure >> 2. Check Ground Connections
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2. Check Ground Connections

  1. Turn A/C switch and blower switch OFF.
  2. Stop engine.
  3. Turn ignition switch OFF.
  4. Loosen and retighten two ground screws.

    Refer to GROUND INSPECTION .

    Fig 1: Identifying Engine Ground Wires
    G00796705Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

  1. OK: GO TO 3.
  2. NG: Repair or replace ground connections.