B0012critical severityBody
Driver Side Airbag Deployment Circuit Short to Ground
on 2021 Mazda Mazda3 2.5L I4 · FWD
What this code means
A short to ground was detected in the driver side airbag deployment circuit. This could cause unintended airbag deployment.
Symptoms
- Airbag warning light on
- SRS fault stored
- Possible unintended deployment risk
Common causes
- Damaged wiring insulation
- Water intrusion into connector
- Pinched wire in seat mechanism
- Faulty airbag module
Diagnostic steps
- Disconnect battery and wait 10 minutes
- Inspect wiring for insulation damage
- Check for water in connectors
- Measure circuit isolation to ground
Repair notes
Repair shorted wiring immediately. This is a safety concern as it could cause unintended deployment.
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