B0042critical severityBody
Side Crash Sensor Communication Error - Right
on 2020 Mazda Mazda3 2.5L Skyactiv-G I4 (186 hp) · AWD
What this code means
Communication loss between the right side crash sensor and the airbag control module.
Symptoms
- Airbag warning light on
- SRS code stored
- Right side airbag protection degraded
Common causes
- Damaged wiring in door or B-pillar
- Faulty sensor
- ACM bus fault
Diagnostic steps
- Scan SRS codes
- Check passenger B-pillar connector
- Inspect door wiring
- Test sensor bus
Repair notes
Repair wiring or replace right side crash sensor.
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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