B1C27 RAM Code - Left Side Seat Thorax Squib 1 Low
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 Left Thorax Side Air Bag, Left Thorax Side Air Bag harness is open or shorted, Left Thorax Side Air Bag 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
- B1C27 RAM indicates Left Side Seat Thorax Squib 1 Low.
- Common causes
- Common causes include Faulty Left Thorax Side Air Bag, Left Thorax Side Air Bag harness is open or shorted, Left Thorax Side Air Bag 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 B1C27 RAM Description
What are the Possible Causes of the DTC B1C27 RAM?
- Faulty Left Thorax Side Air Bag
- Left Thorax Side Air Bag harness is open or shorted
- Left Thorax Side Air Bag circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1C27 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 B1C27 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 B1C27 RAM code?
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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 B1C27 RAM Code
1. What does the OBDII code B1C27 RAM mean?
The B1C27 code indicates a problem with the Left Side Seat Thorax Airbag circuit, specifically a low voltage condition in Squib 1.
2. What are the common symptoms of the B1C27 code?
Symptoms include the airbag warning light staying on, a stored trouble code in the system, and possibly the left side thorax airbag being disabled.
3. What causes the B1C27 code to appear?
Common causes include damaged wiring or connectors in the airbag circuit, a faulty thorax airbag module, or issues with the clockspring or control module.
4. Can I still drive my vehicle with the B1C27 code?
Yes, but the left side thorax airbag may not deploy in the event of a collision, compromising passenger safety.
5. How do I diagnose the B1C27 code?
Diagnosis involves using a scan tool to confirm the code, inspecting wiring and connectors for damage, and testing the thorax airbag module for proper operation.
6. How can I fix the B1C27 RAM code?
Repairs may include repairing or replacing damaged wiring, reconnecting loose connectors, or replacing a faulty thorax airbag module.
7. What tools are needed to troubleshoot the B1C27 code?
You’ll need an OBDII scanner, a multimeter for electrical testing, and potentially a repair manual for wiring diagrams.
8. Is the B1C27 code covered under warranty?
It may be covered under the manufacturer’s warranty if the vehicle is still under coverage; consult your dealership for details.
9. How much does it cost to fix the B1C27 code?
Repair costs vary but can range from $100 to $500 or more, depending on whether wiring repairs or airbag module replacement is needed.
10. Can a low battery cause the B1C27 code?
Yes, a weak or low battery can sometimes cause airbag-related codes, so ensure the battery voltage is adequate before further troubleshooting.
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