B2600
Horn Circuit Malfunction
2001-2003 BMW 525iT E39 2.5L I6 🇷🇺
Low SeverityBody
Description
Malfunction in the vehicle horn circuit. The horn does not sound or sounds abnormally.
Symptoms
- Horn does not sound
- Horn sounds weak
- Horn stuck on
- Intermittent horn operation
- Horn sounds different than normal
Common Causes
- Faulty horn
- Horn relay failure
- Clock spring failure (horn through steering wheel)
- Horn switch failure
- Wiring issue
- Corroded horn ground
Diagnostic Steps
- Test horn with direct power
- Check horn relay
- Test clock spring horn circuit
- Inspect horn switch
- Check ground connection
- Verify horn fuse
Repair Notes
Replace horn, relay, or clock spring. Check horn ground for corrosion.
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
B2600 on Other Vehicles
Common Questions
What does code B2600 mean on a 2001-2003 BMW 525iT E39?
B2600 stands for "Horn Circuit Malfunction". Malfunction in the vehicle horn circuit. The horn does not sound or sounds abnormally.
What are the symptoms of B2600 on a BMW 525iT E39?
Common symptoms of B2600 include: Horn does not sound, Horn sounds weak, Horn stuck on, Intermittent horn operation, Horn sounds different than normal.
What causes B2600 on a 2001-2003 BMW 525iT E39?
Common causes of B2600 include: Faulty horn, Horn relay failure, Clock spring failure (horn through steering wheel), Horn switch failure, Wiring issue, Corroded horn ground.