B1B12 RAM Code - Driver Knee Bolster Squib Circuit Open
Quick Answer
When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. Common causes include Faulty Driver Knee Bolster Squib, Driver Knee Bolster Squib harness is open or shorted, Driver Knee Bolster Squib circuit poor electrical connection. 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
- B1B12 RAM indicates Driver Knee Bolster Squib Circuit Open.
- Common causes
- Common causes include Faulty Driver Knee Bolster Squib, Driver Knee Bolster Squib harness is open or shorted, Driver Knee Bolster Squib circuit poor electrical connection.
- 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.
Code B1B12 RAM Description
What are the Possible Causes of the DTC B1B12 RAM?
- Faulty Driver Knee Bolster Squib
- Driver Knee Bolster Squib harness is open or shorted
- Driver Knee Bolster Squib circuit poor electrical connection
- Faulty Driver Knee Bolster Airbag
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1B12 RAM?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1B12 RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B1B12 RAM code?
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Get the B1B12 RAM code diagnosed by a professional: Find a repair shop in your area
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 B1B12 RAM Code
1. What does OBDII code B1B12 mean in a RAM vehicle?
The B1B12 code indicates an open circuit in the Driver Knee Bolster Squib, which is part of the airbag system responsible for protecting the driver's knees during a collision.
2. What are the common symptoms of the B1B12 code?
Typical symptoms include the airbag warning light illuminating on the dashboard and possible failure of the knee bolster airbag to deploy in a crash.
3. What causes the B1B12 code to appear?
Common causes include damaged wiring or connectors in the knee bolster squib circuit, a malfunctioning airbag module, or a defective knee bolster airbag itself.
4. Can I drive my RAM vehicle with a B1B12 code?
While the vehicle may still be drivable, it is not safe as the airbag system may not function correctly in the event of an accident.
5. How can I diagnose the B1B12 code?
Use an OBDII scanner to confirm the code, then inspect the wiring, connectors, and components related to the knee bolster squib for visible damage or disconnections.
6. How do I fix the B1B12 code?
Repairs may include reconnecting or replacing damaged wiring or connectors, replacing the knee bolster airbag, or reprogramming or replacing the airbag control module.
7. Is resetting the code enough to fix the B1B12 issue?
No, simply clearing the code without addressing the underlying issue will not resolve the problem, and the code will likely return.
8. How much does it cost to repair the B1B12 code?
Repair costs vary depending on the issue but can range from $100 for minor wiring repairs to over $1,000 if the airbag or module requires replacement.
9. Can I fix the B1B12 code myself?
If you have experience with automotive electrical systems, you may be able to repair wiring or connectors. However, airbag system repairs are complex and often best handled by a professional.
10. Why is addressing the B1B12 code important?
Fixing the B1B12 code ensures the airbag system functions properly, which is critical for occupant safety in the event of a collision.
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