B1B28 Code - 1st Row Driver Seat Belt Pretensioner Circuit Low
Quick Answer
The Occupant Restraint Controller (ORC) monitors the 1st Row Driver Seat Belt Pretensioner Circuit. Common causes include Faulty Driver Seat Belt Pretensioner, Driver Seat Belt Pretensioner harness is open or shorted, Driver Seat Belt Pretensioner 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
- B1B28 indicates 1st Row Driver Seat Belt Pretensioner Circuit Low.
- Common causes
- Common causes include Faulty Driver Seat Belt Pretensioner, Driver Seat Belt Pretensioner harness is open or shorted, Driver Seat Belt Pretensioner 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 B1B28 Description
What are the Possible Causes of the DTC B1B28?
- Faulty Driver Seat Belt Pretensioner
- Driver Seat Belt Pretensioner harness is open or shorted
- Driver Seat Belt Pretensioner circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1B28?
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 B1B28 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.
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Information for Specific Makes
- B1B28 Chrysler — 1st Row Driver Seat Belt Pretensioner Circuit Low
- B1B28 Dodge — 1st Row Driver Seat Belt Pretensioner Circuit Low
- B1B28 Jeep — 1st Row Driver Seat Belt Pretensioner Circuit Low
- B1B28 Mitsubishi — 1st Row Driver Seat Belt Pretensioner Circuit Low
- B1B28 RAM — 1st Row Driver Seat Belt Pretensioner Circuit Low
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 B1B28 Code
1. What does the OBDII code B1B28 mean?
B1B28 indicates a problem with the 1st Row Driver Seat Belt Pretensioner Circuit, specifically a low voltage or resistance issue.
2. What are the common symptoms of the B1B28 code?
Symptoms may include an illuminated airbag warning light, malfunctioning seatbelt pretensioner, or reduced safety system functionality.
3. What causes the B1B28 code to appear?
The code can be triggered by damaged wiring, corroded connectors, a faulty seatbelt pretensioner, or a malfunctioning control module.
4. Is it safe to drive with the B1B28 code?
It’s not recommended, as the seatbelt pretensioner may not function properly in an accident, reducing safety.
5. How can I diagnose the B1B28 code?
Inspect the seatbelt pretensioner circuit for damaged wires, loose connections, or corrosion. Use a multimeter to check resistance and continuity.
6. Can the B1B28 code be fixed without replacing parts?
Yes, if the issue is caused by loose or corroded connectors, cleaning and securing them may resolve the problem.
7. How much does it cost to repair the B1B28 code?
Repair costs can vary, but replacing a seatbelt pretensioner typically ranges from $150 to $300, excluding labor.
8. What tools are needed to repair the B1B28 code?
You’ll need a diagnostic scan tool, a multimeter, and basic hand tools to inspect and repair the circuit.
9. Can a faulty airbag control module cause the B1B28 code?
Yes, a malfunctioning airbag control module can sometimes cause this code, but it’s less common than wiring or pretensioner issues.
10. Do I need to clear the B1B28 code after repairs?
Yes, use an OBDII scan tool to clear the code after completing repairs and verify that it doesn’t reappear.
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