B24B9
Mode Door Motor
B24B9 is an OBD-II diagnostic trouble code meaning: Mode Door Motor. Common causes: damper mechanism jammed, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- Airflow modes do not switch
- Noise or grinding noise coming from the accelerator pedal area
- Cannot change air flow direction
- Hot or cold air is blowing in the wrong direction
Causes
- Damper mechanism jammed
- Open or shorted wiring harness
- Damper motor malfunction
- Problems with the climate control unit
How to Fix
- Check the damper mechanism for jamming
- Test the damper motor
- Check the integrity of the wiring harness
- Diagnose the climate control control unit
- If necessary, replace the damper motor
Related codes
FAQ
What does the B24B9 code mean?
B24B9 is an OBD-II diagnostic trouble code that indicates: Mode Door Motor
What causes a B24B9 error code?
The most common causes of B24B9 include: Damper mechanism jammed; Open or shorted wiring harness; Damper motor malfunction; Problems with the climate control unit.
How do I fix a B24B9 diagnostic trouble code?
To fix B24B9: Check the damper mechanism for jamming. Test the damper motor. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B24B9?
Limited driving only, diagnose soon
How much does it cost to fix B24B9?
The estimated repair cost for B24B9 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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