DTC B1C1C-12: Airflow Mode Actuator Internal Potentiometer Circuit Malfunction
B1C1C:12 (DASH_ESU) 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 |
- Malfunction in wiring harness (including connector/terminal) between airflow mode actuator and dash-electrical supply unit (See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Airflow mode actuator malfunction (short to power supply in potentiometer circuit) (Refer to [AIRFLOW MODE ACTUATOR INSPECTION
]
).
- Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION
]
).
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
|
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Dash-electrical supply unit |
| 2 |
Airflow mode actuator |