B24C6
Blower Motor Control
B24C6 is an OBD-II diagnostic trouble code meaning: Blower Motor Control. Common causes: fan motor malfunction (wear of brushes, bearings), problems in the wiring harness (break, short circuit, corrosion). Estimated repair cost: $17–167.
Symptoms
- Heater/air conditioner fan not working
- The fan only runs at maximum speed
- Fan speed is not adjustable
- The fuse trips when the fan is turned on
Causes
- Fan motor malfunction (wear of brushes, bearings)
- Problems in the wiring harness (break, short circuit, corrosion)
- Failure of control transistors in the HVAC unit
- Faulty fan relay
- Blown circuit fuse
How to Fix
- Check fan circuit fuses
- Check the operation of fan motor 1a when connected directly to the battery.
- Check power and control signals at the motor connector
- Diagnose the HVAC control unit
- Check the condition of the wiring harness
- Replace the faulty component (motor, relay, control unit)
Related codes
FAQ
What does the B24C6 code mean?
B24C6 is an OBD-II diagnostic trouble code that indicates: Blower Motor Control
What causes a B24C6 error code?
The most common causes of B24C6 include: Fan motor malfunction (wear of brushes, bearings); Problems in the wiring harness (break, short circuit, corrosion); Failure of control transistors in the HVAC unit; Faulty fan relay.
How do I fix a B24C6 diagnostic trouble code?
To fix B24C6: Check fan circuit fuses. Check the operation of fan motor 1a when connected directly to the battery.. Check power and control signals at the motor connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B24C6?
Yes, but get it checked soon
How much does it cost to fix B24C6?
The estimated repair cost for B24C6 is $17–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat