B0113low severityBody
Passive Entry System Malfunction
on 2021 Audi A6 3.0L Turbo V6 · AWD
What this code means
The passive/smart entry system that detects key fob proximity for hands-free entry is not functioning.
Symptoms
- Must press key fob button to unlock
- Touch-to-unlock door handles not working
- Passive entry indicator not responding
- Walk-away lock not working
Common causes
- Low-frequency antenna failure
- Key fob passive entry circuit fault
- Door handle sensor failure
- BCM passive entry module issue
- Key fob battery too weak for passive mode
Diagnostic steps
- Check key fob battery voltage
- Test LF antenna at each door handle
- Scan BCM for passive entry codes
- Test door handle touch sensors
- Verify passive entry is enabled in settings
Repair notes
Replace LF antenna, key fob, or door handle antenna module. Check BCM configuration.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment