DTC B1C1C-12; B1C1C-13; Airflow Mode Actuator (Potentiometer) Circuit Short To Power Supply Or Circuit Open: Notes

DTC DETECTION DESCRIPTION

System malfunction location	B1C1C:12: Airflow mode actuator (potentiometer) circuit short to power supply B1C1C:13: Airflow mode actuator (potentiometer) circuit open
Detection condition	Malfunction in wiring harness between airflow mode actuator and climate control unit
Fail-safe function	Malfunction determined when ignition switched ON Airflow mode actuator drive signal is stopped right when the malfunction is determined. However, for manual operation using the MODE switch, only vent mode is available. Defroster switch operation is available. Malfunction already exists when ignition switched ON Control based on ambient temperature. However, for manual operation using the MODE switch, only vent mode is available. Defroster switch operation is available.
Possible cause	Connector or terminal malfunction Airflow mode actuator malfunction Open circuit in wiring harness between the following terminals: Climate control unit terminal 1C-airflow mode actuator terminal B Climate control unit terminal 1B-airflow mode actuator terminal C Climate control unit terminal 1Q-airflow mode actuator terminal A Short to power supply in wiring harness between the following terminals: Climate control unit terminal 1C-airflow mode actuator terminal B Climate control unit terminal 1B-airflow mode actuator terminal C Climate control unit terminal 1Q-airflow mode actuator terminal A Climate control unit malfunction