Passenger Frontal Stage 2 Deployment Control
2007-2014 Land Rover LR2 3.2L I6
Description
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.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 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
- B0012Driver Side Airbag Deployment Circuit Short to Ground
B0004 on Other Vehicles
Land Rover Defender 110
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender 90
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender V8
2022-2024 5.0L V8 Supercharged
Land Rover Discovery
1994-2004 4.0L V8
Land Rover Discovery
2017-2024 3.0L V6 Supercharged
Land Rover Discovery Sport
2015-2024 2.0L I4 Turbo
Land Rover Freelander
1997-2006 2.5L V6
Land Rover LR3
2005-2009 4.4L V8
Common Questions
What does code B0004 mean on a 2007-2014 Land Rover LR2?
B0004 stands for "Passenger Frontal Stage 2 Deployment Control". Malfunction in the passenger frontal airbag stage 2 deployment circuit. The stage 2 inflator provides additional inflation force during severe frontal collisions.
What are the symptoms of B0004 on a Land Rover LR2?
Common symptoms of B0004 include: Airbag warning light on, Passenger airbag OFF indicator illuminated, SRS system fault stored, Airbag may not deploy fully in a crash.
What causes B0004 on a 2007-2014 Land Rover LR2?
Common causes of B0004 include: Faulty airbag inflator module, Damaged wiring harness under dash, Airbag control module failure, Corroded connector at airbag module.