B0204
Power Window Master Switch Circuit
2016-2021 Mazda CX-3 2.0L I4
Low SeverityBodyGeneric (SAE)
Description
Malfunction in the driver master power window switch assembly that controls all vehicle windows.
Symptoms
- Multiple windows not responding from driver switch
- One-touch feature not working
- Window lock button inoperative
- Intermittent window control
Common Causes
- Faulty master switch assembly
- Corroded switch contacts
- Spilled liquid in switch
- Wiring issue at switch connector
Diagnostic Steps
- Test each switch function
- Check switch connector
- Test voltage at switch inputs
- Swap with known-good switch if available
- Check for corrosion in switch
Repair Notes
Replace master power window switch assembly.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B0204 on Other Vehicles
Common Questions
What does code B0204 mean on a 2016-2021 Mazda CX-3?
B0204 stands for "Power Window Master Switch Circuit". Malfunction in the driver master power window switch assembly that controls all vehicle windows.
What are the symptoms of B0204 on a Mazda CX-3?
Common symptoms of B0204 include: Multiple windows not responding from driver switch, One-touch feature not working, Window lock button inoperative, Intermittent window control.
What causes B0204 on a 2016-2021 Mazda CX-3?
Common causes of B0204 include: Faulty master switch assembly, Corroded switch contacts, Spilled liquid in switch, Wiring issue at switch connector.