HVAC - Automatic - Diagnostics

DTC B1514 (No.14): Air Flow Control Actuator And/or Its Circuit malfunction

Wiring Diagram:

Wiring Diagram

DTC Detecting Condition And Trouble Area:

DTC Detecting Condition and Trouble Area

DTC Troubleshooting

NOTE: First, perform Air flow control actuator motor circuit inspection. After that, if DTC 1514 is still detected, perform Air flow control actuator position sensor circuit inspection.

Step 1-5:

Step 6-7:

Air flow control actuator motor circuit inspection

NOTE: Perform measurement for Step 2 and Step 5 within 10 seconds after ignition switch ON.

Step 1-6:

Air flow control actuator position sensor circuit inspection