B220B Code - Occupant Restraint Controller Firing Stored Energy
Quick Answer
The B220B diagnostic trouble code (DTC) refers to the Occupant Restraint Controller firing stored energy. Common causes include Faulty Occupant Restraint Controller, Damaged wiring or connectors in the airbag system, Malfunctioning crash sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B220B indicates Occupant Restraint Controller Firing Stored Energy.
- Common causes
- Common causes include Faulty Occupant Restraint Controller, Damaged wiring or connectors in the airbag system, Malfunctioning crash sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code B220B Description
The B220B diagnostic trouble code (DTC) refers to the Occupant Restraint Controller firing stored energy. The Occupant Restraint Controller is a crucial component of the vehicle's safety system, responsible for managing the deployment of airbags and seat belt pretensioners in the event of a collision. When this code is triggered, it indicates that there is an issue with the system's ability to deploy these safety measures effectively.
Common Causes of B220B
- Faulty Occupant Restraint Controller
- Damaged wiring or connectors in the airbag system
- Malfunctioning crash sensor
- Corrosion or water damage in the airbag system components
- Impact or collision that has damaged the airbag system components
Symptoms of B220B
- Airbag warning light illuminated on the dashboard
- Seat belt warning light flashing or staying on
- Inability to turn off the airbag warning light using the reset procedure
- Vehicle may fail a safety inspection due to the airbag system not functioning properly
- Diagnostic trouble code B220B stored in the vehicle's computer system
How to Fix B220B
- Diagnose the issue by retrieving the DTCs stored in the vehicle's computer system and performing a visual inspection of the airbag system components.
- Check the wiring and connectors in the airbag system for any signs of damage or corrosion. Repair or replace any faulty components as needed.
- Test the Occupant Restraint Controller and crash sensor to ensure they are functioning correctly. Replace any faulty components.
- Clear the DTC and reset the airbag system to ensure the issue has been resolved.
- Conduct a test drive to verify that the airbag warning light is no longer illuminated and that the vehicle's safety systems are functioning properly.
Cost to Fix B220B
The cost of repairing a B220B code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, repairing an issue with the Occupant Restraint Controller firing stored energy can range from $200 to $800, including parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.
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Code B220B Information for Specific Makes
- B220B Chrysler — Occupant Restraint Controller Firing Stored Energy
- B220B Dodge — Occupant Restraint Controller Firing Stored Energy
- B220B Jeep — Occupant Restraint Controller Firing Stored Energy
- B220B RAM — Occupant Restraint Controller Firing Stored Energy
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B220B Code
1. What does the OBDII code B220B mean?
The B220B code indicates that the Occupant Restraint Controller (ORC) has detected an issue with the firing stored energy circuit, which is critical for deploying airbags during a collision.
2. What are the common symptoms of the B220B code?
Symptoms may include the airbag warning light staying illuminated, stored diagnostic trouble codes in the ORC, and potential malfunction of the airbag system during a crash.
3. What causes the B220B code to appear?
Common causes include a depleted or faulty backup power supply for the ORC, damaged wiring or connectors in the airbag system, or a malfunctioning Occupant Restraint Controller.
4. Is it safe to drive with the B220B code present?
No, it is not safe to drive with this code because the airbag system may not function properly in the event of a collision, increasing the risk of injury.
5. How is the B220B code diagnosed?
A technician will use a diagnostic scanner to confirm the code, inspect the ORC and related wiring for damage, and test the stored energy circuit for proper voltage and continuity.
6. Can a dead car battery cause the B220B code?
Yes, a dead or weak car battery can deplete the backup power supply for the ORC, potentially triggering the B220B code.
7. What repairs are needed to fix the B220B code?
Repairs may include replacing the Occupant Restraint Controller, repairing or replacing damaged wiring or connectors, or recharging/replacing the backup power supply.
8. Can I clear the B220B code without making repairs?
Clearing the code without addressing the underlying issue is not recommended, as the problem will likely persist and compromise airbag safety.
9. How much does it cost to fix the B220B code?
Repair costs vary depending on the root cause but typically range from $200 to $800, including parts and labor.
10. Can the B220B code be caused by an accident?
Yes, previous collisions can damage the ORC, wiring, or airbag components, leading to the B220B code.
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