B0204
Power Window Master Switch Circuit
2006-2011 BMW 325i 3.0L I6 N52 🇨🇦
Low SeverityBody
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
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0204 on Other Vehicles
Common Questions
What does code B0204 mean on a 2006-2011 BMW 325i?
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 BMW 325i?
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 2006-2011 BMW 325i?
Common causes of B0204 include: Faulty master switch assembly, Corroded switch contacts, Spilled liquid in switch, Wiring issue at switch connector.