B0053critical severityBody
Driver Seat Belt Pretensioner Circuit Short
on 2002 Audi A4 1.8L Turbo I4 · AWD
What this code means
A short circuit detected in the driver seat belt pretensioner deployment circuit.
Symptoms
- Airbag/seatbelt warning light on
- SRS fault stored
- Risk of unintended pretensioner firing
Common causes
- Damaged wiring insulation
- Pinched wire at B-pillar
- Contaminated connector
- Pretensioner squib failure
Diagnostic steps
- Disconnect battery and wait 10 minutes
- Inspect pretensioner wiring for damage
- Check connector for moisture or contamination
- Measure circuit isolation
Repair notes
Repair damaged wiring or replace pretensioner assembly. Address immediately due to unintended deployment risk.
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
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open
B0012
Driver Side Airbag Deployment Circuit Short to Ground
B0013
Driver Side Airbag Deployment Circuit Short to Battery