B0043critical severityBody
Rear Impact Sensor Circuit
on 2013 Audi A6 3.0L Supercharged V6 · AWD
What this code means
Malfunction in the rear impact sensor circuit. This sensor detects rear-end collision severity for fuel shutoff and restraint deployment.
Symptoms
- Airbag warning light on
- SRS fault stored
- Rear collision protection degraded
Common causes
- Faulty rear impact sensor
- Wiring damage from rear collision
- Trunk area moisture intrusion
- Sensor mounting loose
Diagnostic steps
- Scan SRS codes
- Inspect rear impact sensor in trunk or rear panel area
- Check wiring
- Measure circuit resistance
Repair notes
Replace rear impact sensor or repair wiring. Check for moisture intrusion in trunk area.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0005
Driver Knee Airbag Deployment Circuit