B0033
Side Impact Sensor Circuit - Left Front
2002-2005 Audi A4 3.0L V6 🇩🇪
Critical SeverityBody
Description
Malfunction in the left front side impact sensor. This sensor triggers side airbags and curtain airbags during a driver-side impact.
Symptoms
- Airbag warning light on
- SRS fault code
- Side airbag system compromised
- No driving symptoms
Common Causes
- Faulty side impact sensor
- B-pillar wiring damage
- Connector loose or corroded
- Door replacement without reconnecting sensor
Diagnostic Steps
- Scan SRS codes
- Inspect B-pillar or door-mounted sensor
- Check connector engagement
- Measure sensor circuit
- Verify door-to-body wiring
Repair Notes
Replace side impact sensor or repair wiring in B-pillar or door.
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
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0033 on Other Vehicles
Common Questions
What does code B0033 mean on a 2002-2005 Audi A4?
B0033 stands for "Side Impact Sensor Circuit - Left Front". Malfunction in the left front side impact sensor. This sensor triggers side airbags and curtain airbags during a driver-side impact.
What are the symptoms of B0033 on a Audi A4?
Common symptoms of B0033 include: Airbag warning light on, SRS fault code, Side airbag system compromised, No driving symptoms.
What causes B0033 on a 2002-2005 Audi A4?
Common causes of B0033 include: Faulty side impact sensor, B-pillar wiring damage, Connector loose or corroded, Door replacement without reconnecting sensor.