B0112
Key Fob Signal Weak or Intermittent
1999-2000 BMW 323i E46 2.5L I6 🇦🇺
Low SeverityBody
Description
The keyless entry system is receiving a weak or intermittent signal from the key fob.
Symptoms
- Remote works only at very close range
- Intermittent remote lock/unlock
- Must press button multiple times
- Works from one direction but not another
Common Causes
- Low key fob battery
- Faulty key fob transmitter
- Receiver antenna degraded
- RF interference from nearby source
- Key fob internal antenna damage
Diagnostic Steps
- Replace key fob battery
- Test range with new battery
- Check for nearby RF interference
- Test alternate key fob
- Inspect receiver antenna
Repair Notes
Replace key fob battery. If range is still reduced, replace key fob or receiver antenna.
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
B0112 on Other Vehicles
Common Questions
What does code B0112 mean on a 1999-2000 BMW 323i E46?
B0112 stands for "Key Fob Signal Weak or Intermittent". The keyless entry system is receiving a weak or intermittent signal from the key fob.
What are the symptoms of B0112 on a BMW 323i E46?
Common symptoms of B0112 include: Remote works only at very close range, Intermittent remote lock/unlock, Must press button multiple times, Works from one direction but not another.
What causes B0112 on a 1999-2000 BMW 323i E46?
Common causes of B0112 include: Low key fob battery, Faulty key fob transmitter, Receiver antenna degraded, RF interference from nearby source, Key fob internal antenna damage.