DTC B1C1C-12: Airflow Mode Actuator Internal Potentiometer Circuit Malfunction [Dash-Electrical Supply Unit]: Outline

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.

DTC B1C1C:12 [DASH-ELECTRICAL SUPPLY UNIT] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Airflow mode actuator internal potentiometer circuit malfunction
Detection condition	The dash-electrical supply unit detects a short to power supply in the airflow mode actuator internal potentiometer circuit.
Fail-safe	Airflow mode actuator drive signal is stopped right when the malfunction is determined.
Possible cause	Airflow mode actuator malfunction Short to power supply in potentiometer circuit Dash-electrical supply unit malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable