A/C Is Always On Or A/C Compressor Runs Continuously: Outline
A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY DESCRIPTION AND POSSIBLE CAUSE
| Troubleshooting item |
A/C is always on or A/C compressor runs continuously |
| Description |
- A/C compressor magnetic clutch does not disengage.
|
| Possible cause |
- DTCs are stored in the following modules:
- PCM
- Body control module (BCM)
- Dash-electrical supply unit
- Malfunction in wiring harness (including connector/terminal) between A/C relay and magnet clutch
- Magnet clutch malfunction (magnetic clutch engagement is stuck.)
- Climate control unit malfunction (climate control unit always transmits A/C request signal.)
- A/C relay malfunction (stuck closed)
- Malfunction in wiring harness (including connector/terminal) between A/C relay and PCM
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
A/C relay |
| 3 |
Magnet clutch |
| 4 |
PCM |