b1246 problem in the rear air mix control motor circuit linkage door or motor
What it means:
OBD2 Code: B1246
Description: Problem in the rear air mix control motor circuit linkage door or motor.
Definition: This code indicates a malfunction in the rear air mix control motor circuit, which may involve issues with the linkage door or the motor itself. The system is unable to properly regulate airflow temperature due to this fault.
Common Causes:
OBD2 Code: B1246
Description: Problem in the rear air mix control motor circuit linkage door or motor.
- Faulty rear air mix control motor
- Damaged or misaligned linkage door
- Wiring issues such as shorts, opens, or poor connections in the circuit
- Blown fuse related to the HVAC system
- Defective HVAC control module
Common Misdiagnosis:
OBD2 Code: B1246
Description: Problem in the Rear Air Mix Control Motor Circuit Linkage Door or Motor
Common Misdiagnosis: Replacing the rear air mix control motor without checking for wiring issues or obstructions in the linkage door.
Common Diagnostic Steps:
OBD2 Code: B1246
Description: Problem in the Rear Air Mix Control Motor Circuit Linkage Door or Motor
- Check for any stored trouble codes and clear them to see if they return.
- Inspect the rear air mix control motor for physical damage or obstruction.
- Test the wiring and connectors in the circuit for continuity and proper connection.
- Verify that the linkage door is not stuck or obstructed, preventing movement.
- Use a multimeter to check voltage and ground at the motor connector.
- If applicable, perform an actuator calibration procedure using a scan tool.
- If all checks are normal, consider replacing the rear air mix control motor.