No Temperature Control With Climate Control Unit [Full-Auto Air Conditioner: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.

DESCRIPTION	Temperature does not change when operating temperature dial Malfunction in A/C unit and/or climate control unit air mix system Malfunction in driver and/or passenger side air mix actuator or related wiring harness
POSSIBLE CAUSE	INTERIOR 15 A fuse malfunction Open or short circuit in wiring harness between fuse block and climate control unit Open or short circuit in wiring harness between climate control unit and air mix actuator Air mix actuator malfunction Air mix link malfunction Air mix door malfunction Climate control unit malfunction Heater hose malfunction

When performing an asterisks (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions.
If there is a problem, check to make sure connectors, terminals and wiring harnesses are connected correctly and undamaged.