| 23 |
A/C DOES NOT WORK SUFFICIENTLY |
| DESCRIPTION |
- A/C compressor magnetic clutch does not engage when A/C switch is turned on.
|
| POSSIBLE CAUSE |
- PCM, instrument cluster or climate control unit DTC is stored
- Refrigerant pressure sensor malfunction
- Improper refrigerant charging amount
- Seized A/C compressor
- Evaporator temperature sensor malfunction
- Open or short circuit in wiring harness between the following terminals:
- Evaporator temperature sensor terminal B-Climate control unit terminal J
- Evaporator temperature sensor terminal A-Climate control unit terminal E
- Instrument cluster malfunction (Does not receive A/C request signal from climate control unit or transmit it to PCM)
- Climate control unit malfunction (A/C switch malfunction or climate control unit does not determine A/C request or transmit A/C request signal)
- Open circuit in wiring harness between magnetic clutch and body ground
- A/C relay stuck open
- Open circuit in wiring harness between the following terminals:
- IG1 relay terminal C-A/C relay terminal A
- Battery positive terminal-A/C relay terminal C
- A/C relay terminal E-PCM terminal 2AF
- A/C relay terminal D-Magnetic clutch terminal A
|
 Courtesy of MAZDA MOTORS CORP.
|