No. 23 A/C Does Not Work Sufficiently [MZI-3.7]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DESCRIPTION AND POSSIBLE CAUSE

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 Open circuit in wiring harness between A/C relay and PCM Open circuit in wiring harness between A/C relay and battery Open circuit in wiring harness between A/C relay and ignition switch^1 /IG2 relay^2 Poor GND of A/C magnetic clutch Refrigerant pressure sensor malfunction. Evaporator temperature sensor malfunction A/C relay is stuck open. Seized A/C compressor Climate control module malfunction (A/C switch signal stuck off) Communication error between PCM and climate control module

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
Open circuit in wiring harness between A/C relay and PCM
Open circuit in wiring harness between A/C relay and battery
Open circuit in wiring harness between A/C relay and ignition switch^*1 /IG2 relay^*2
Poor GND of A/C magnetic clutch
Refrigerant pressure sensor malfunction.
Evaporator temperature sensor malfunction
A/C relay is stuck open.
Seized A/C compressor
Climate control module malfunction (A/C switch signal stuck off)
Communication error between PCM and climate control module