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No.23 A/C Does Not Work Sufficiently: Notes

POSSIBLE CAUSES OF A/C DOES NOT WORK SUFFICIENTLY

23 A/C DOES NOT WORK SUFFICIENTLY.
DESCRIPTION  A/C compressor magnetic clutch does not engage when the A/C switch is turned on.
POSSIBLE CAUSE 
  • Improper refrigerant charging amount
  • Open the A/C magnetic clutch
  • Open circuit in wiring harness between A/C relay and A/C magnetic clutch
  • Poor GND of A/C magnetic clutch
  • Refrigerant pressure switch is stuck open.
  • A/C relay is stuck open,
  • Seized A/C compressor
  • Open circuit in wiring harness between A/C switch and PCM through both refrigerant pressure switch and A/C amplifier