B1C39 Code - 1st Row Driver Retractor Tensioner Circuit High
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 1st Row Driver Retractor Tensioner, 1st Row Driver Retractor Tensioner harness is open or shorted, 1st Row Driver Retractor Tensioner 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
- B1C39 indicates 1st Row Driver Retractor Tensioner Circuit High.
- Common causes
- Common causes include Faulty 1st Row Driver Retractor Tensioner, 1st Row Driver Retractor Tensioner harness is open or shorted, 1st Row Driver Retractor Tensioner 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 B1C39 Description
What are the Possible Causes of the DTC B1C39?
- Faulty 1st Row Driver Retractor Tensioner
- 1st Row Driver Retractor Tensioner harness is open or shorted
- 1st Row Driver Retractor Tensioner circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1C39?
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 B1C39 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
- B1C39 Chrysler — 1st Row Driver Retractor Tensioner Circuit High
- B1C39 Dodge — 1st Row Driver Retractor Tensioner Circuit High
- B1C39 Jeep — 1st Row Driver Retractor Tensioner Circuit High
- B1C39 Mitsubishi — 1st Row Driver Retractor Tensioner Circuit High
- B1C39 RAM — 1st Row Driver Retractor Tensioner Circuit High
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 B1C39 Code
1. What does the OBDII code B1C39 mean?
The code B1C39 refers to a fault in the 1st Row Driver Retractor Tensioner Circuit, indicating that the circuit voltage is higher than expected.
2. What are the common symptoms of code B1C39?
Common symptoms include an illuminated airbag warning light, the seatbelt pretensioner not functioning properly, and potentially a fault stored in the airbag system.
3. What causes the B1C39 code to appear?
This code is typically caused by a faulty seatbelt pretensioner, damaged wiring or connectors in the circuit, or issues with the airbag control module.
4. Can I continue driving with the B1C39 code present?
While the vehicle may still be drivable, the seatbelt pretensioner may not function during a collision, compromising safety. Prompt diagnosis and repair are recommended.
5. How is the B1C39 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the seatbelt pretensioner, and check the wiring and connectors for damage, corrosion, or loose connections.
6. Can I fix the B1C39 code myself?
If you have experience with automotive electrical systems, you can inspect for damaged wiring or loose connections. However, more complex repairs, like replacing the pretensioner, should be handled by a professional.
7. How much does it cost to repair the B1C39 code?
The repair cost varies depending on the issue. Replacing a seatbelt pretensioner can cost $200–$500, while simple wiring repairs may cost less.
8. Can a dead battery cause the B1C39 code?
A dead or weak battery may not directly cause this code but could contribute to electrical issues. Ensure the battery and charging system are working properly.
9. Do I need to replace the airbag control module if I have code B1C39?
Not necessarily. The airbag control module may only need replacement if diagnosed as faulty after ruling out wiring and pretensioner issues.
10. Will clearing the B1C39 code fix the problem?
Clearing the code without addressing the underlying issue will not fix the problem. The code will likely return if the fault persists.
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