Power Window Master Switch Circuit
1994-2003 Aston Martin DB7 3.2L I6 Supercharged
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
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
- B0012Driver Side Airbag Deployment Circuit Short to Ground
- B0013Driver Side Airbag Deployment Circuit Short to Battery
B0204 on Other Vehicles
Aston Martin DB11
2016-2024 4.0L V8 Twin Turbo
Aston Martin DB11
2016-2024 5.2L V12 Twin Turbo
Aston Martin DB9
2004-2016 6.0L V12
Aston Martin DBS Superleggera
2019-2024 5.2L V12 Twin Turbo
Aston Martin DBX
2020-2024 4.0L V8 Twin Turbo
Aston Martin Vantage
2005-2024 4.7L V8
Aston Martin Vantage
2018-2024 4.0L V8 Twin Turbo
Common Questions
What does code B0204 mean on a 1994-2003 Aston Martin DB7?
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 Aston Martin DB7?
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 1994-2003 Aston Martin DB7?
Common causes of B0204 include: Faulty master switch assembly, Corroded switch contacts, Spilled liquid in switch, Wiring issue at switch connector.