B0004critical severityBody
Passenger Frontal Stage 2 Deployment Control
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
Malfunction in the passenger frontal airbag stage 2 deployment circuit. The stage 2 inflator provides additional inflation force during severe frontal collisions.
Symptoms
- Airbag warning light on
- Passenger airbag OFF indicator illuminated
- SRS system fault stored
- Airbag may not deploy fully in a crash
Common causes
- Faulty airbag inflator module
- Damaged wiring harness under dash
- Airbag control module failure
- Corroded connector at airbag module
Diagnostic steps
- Scan SRS module for codes
- Inspect passenger airbag connector
- Measure circuit resistance
- Check wiring harness from module to airbag
- Verify airbag control module power and ground
Repair notes
Professional airbag service required. Do not attempt DIY airbag repairs. Disconnect battery and wait 10 minutes before working near airbag components.
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
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
B0011
Driver Side Airbag Deployment Circuit Open