No Temperature Control With Climate Control Unit (Full-Auto Air Conditioner): Notes
WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NO TEMPERATURE CONTROL WITH CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER) DESCRIPTION AND POSSIBLE CAUSE
| DESCRIPTION |
- Temperature does not change when operating temperature control dial
- Malfunction in electric system and/or climate control unit air mix system
- Malfunction in driver and/or passenger side air mix actuator or related wiring harness
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| POSSIBLE CAUSE |
- ROOM 25 A fuse malfunction
- INTERIOR1 15A fuse malfunction
- Open circuit in wiring harness between climate control unit terminal 2A and positive battery terminal
- Short to ground in wiring harness between climate control unit terminal 2A and ROOM 25 A fuse
- Air mix actuator connector malfunction
- Climate control unit connector malfunction
- Air mix actuator malfunction
- Climate control unit malfunction
- Open circuit or short to ground or short to power supply in wiring harness between the following terminals:
- Climate control unit terminal 1A - driver-side air mix actuator terminal E
- Climate control unit terminal 1J - driver-side air mix actuator terminal F
- Climate control unit terminal 1U - driver-side air mix actuator terminal G
- Climate control unit terminal 2F - driver-side air mix actuator terminal C
- Climate control unit terminal 2H - driver-side air mix actuator terminal B
- Climate control unit terminal 1A - passenger-side air mix actuator terminal G
- Climate control unit terminal 1H - passenger-side air mix actuator terminal F
- Climate control unit terminal 1U - passenger-side air mix actuator terminal E
- Climate control unit terminal 2L - passenger-side air mix actuator terminal C
- Climate control unit terminal 2J - passenger-side air mix actuator terminal B
- Short to ground or short to power supply in wiring harness between the following terminals:
- Climate control unit terminal 1A - air intake actuator terminal E
- Climate control unit terminal 1U - air intake actuator terminal C
- Climate control unit terminal 1A - airflow mode actuator terminal A
- Climate control unit terminal 1U - airflow mode actuator terminal B
- Climate control unit terminal 1U - solar radiation sensor terminal A
- Short to power supply in wiring harness between the following terminals:
- Climate control unit terminal 1A - cabin temperature sensor terminal B
- Short to power supply in wiring harness between the following terminals:
- Climate control unit terminal 1A - evaporator temperature sensor terminal A
- Air mix link malfunction
- Air mix door malfunction
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