Dual A/C Control Does Not Operate (Auto A/C): Notes

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DUAL A/C CONTROL DOES NOT OPERATE (AUTO A/C) DESCRIPTION AND POSSIBLE CAUSE

Troubleshooting item	Dual A/C control does not operate
Description	Driver or passenger side temperature control dial does not operate individually
Possible cause	Dash-electrical supply unit detects DTC Detects DTC and activates fail-safe Air mix door malfunction (driver or passenger-side) Sticking, not operating smoothly Air mix actuator malfunction (driver or passenger-side) Climate control unit malfunction