B0285low severityBody
Passenger Cooled Seat Circuit
on 2018 Mazda Mazda3 2.0L I4 · FWD
What this code means
Malfunction in the passenger ventilated/cooled seat fan circuit.
Symptoms
- Passenger cooled seat not working
- Fan not running
- Intermittent cooling
- Weak airflow from seat
Common causes
- Faulty fan motor
- Blocked air passages
- Wiring issue
- Control module failure
Diagnostic steps
- Test fan motor
- Check air passages
- Inspect wiring
- Test control output
Repair notes
Replace ventilated seat fan or clear obstructions.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment