NO. 23 A/C Does Not Work Sufficiently: Notes
NO. 23 A/C DOES NOT WORK SUFFICIENTLY (SKYACTIV-G 2.5T) DESCRIPTION AND POSSIBLE CAUSE
| 23 |
A/C DOES NOT WORK SUFFICIENTLY |
| DESCRIPTION |
- A/C compressor magnetic clutch does not engage when A/C switch is turned on.
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| POSSIBLE CAUSE |
- PCM, instrument cluster or front 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-Front climate control unit terminal 1P (front climate control unit type A)
- Evaporator temperature sensor terminal B-Front climate control unit terminal 1E (front climate control unit type B)
- Evaporator temperature sensor terminal A-Front climate control unit terminal 1I
- Instrument cluster malfunction (Does not receive A/C request signal from front climate control unit or transmit it to PCM)
- Front climate control unit malfunction (A/C switch malfunction or front 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:
- Front body control module (FBCM) terminal 1C-A/C relay terminal A
- Battery positive terminal-A/C relay terminal D
- A/C relay terminal C-Magnetic clutch terminal A
- A/C relay terminal E-PCM terminal 2BB
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