B0240
Sunroof Motor Circuit
2002-2004 Audi A6 3.0L V6 🇩🇪
Low SeverityBody
Description
Malfunction in the sunroof/moonroof motor circuit. The sunroof does not open, close, or tilt.
Symptoms
- Sunroof does not move
- Sunroof opens but will not close
- Motor noise but no movement
- Sunroof switch unresponsive
Common Causes
- Faulty sunroof motor
- Sunroof track obstruction
- Switch failure
- Wiring damage in headliner
- Sunroof off track
Diagnostic Steps
- Check sunroof fuse
- Test sunroof switch
- Apply direct power to motor
- Inspect sunroof tracks for debris
- Check if panel is off track
Repair Notes
Replace sunroof motor or clear track obstruction. Re-initialize sunroof if it has lost calibration.
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
B0240 on Other Vehicles
Common Questions
What does code B0240 mean on a 2002-2004 Audi A6?
B0240 stands for "Sunroof Motor Circuit". Malfunction in the sunroof/moonroof motor circuit. The sunroof does not open, close, or tilt.
What are the symptoms of B0240 on a Audi A6?
Common symptoms of B0240 include: Sunroof does not move, Sunroof opens but will not close, Motor noise but no movement, Sunroof switch unresponsive.
What causes B0240 on a 2002-2004 Audi A6?
Common causes of B0240 include: Faulty sunroof motor, Sunroof track obstruction, Switch failure, Wiring damage in headliner, Sunroof off track.