DTC Codes
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      Acura SRS (Supplemental Restraint System)/Airbag Diagnostic Trouble Codes (DTCs)

      Acura Airbag/SRS Diagnostic Trouble Codes (DTCs): Comprehensive Troubleshooting Guide

      When dealing with an illuminated airbag warning light in Acura vehicles, it's essential to understand the Diagnostic Trouble Codes (DTCs) associated with the Supplemental Restraint System (SRS). This guide provides detailed information on common Acura SRS/Airbag DTC codes related to the airbag control module, airbags, seat belts, impact sensors, collapsible steering column, and pyrotechnic fuses. Components that MyAirbags can rebuild or service are highlighted to assist you in efficient and cost-effective repairs.

      Overview of Acura's SRS/Airbag System

      Acura vehicles are equipped with advanced safety features, including a sophisticated SRS/Airbag system designed to protect occupants during collisions. This system comprises various sensors, control modules, airbags, and seat belt components that must function correctly to ensure safety. Faults in any of these components can trigger DTCs and illuminate the airbag warning light.

      Common Airbag Control Module Faults

      Code: 53-XX

      • Description: SRS Control Unit Internal Failure
      • Possible Causes: Software corruption, hardware failure, moisture intrusion, or impact damage.
      • Solution: MyAirbags can reset and repair the airbag control module, restoring it to proper working condition and clearing the fault code.

      Code: 54-XX

      • Description: SRS Control Unit Configuration Error
      • Possible Causes: Incorrect module programming, software issues, internal faults.
      • Solution: MyAirbags can reprogram and reset the airbag control module, correcting configuration errors.

      Airbag Deployment Circuit Faults

      Code: 11-10

      • Description: Driver's Airbag Inflator (Dual Stage - 1st Stage) Circuit Open or Increased Resistance
      • Possible Causes: Damaged wiring, faulty clock spring, poor electrical connections, defective airbag module.
      • Note: Airbag inflators must be replaced; they cannot be repaired. Use genuine Acura parts for replacement.

      Code: 11-20

      • Description: Driver's Airbag Inflator (Dual Stage - 2nd Stage) Circuit Shorted or Decreased Resistance
      • Possible Causes: Shorted wiring, connector problems, defective airbag module.
      • Note: Replacement of the airbag module is required for safety.

      Code: 15-10

      • Description: Passenger's Airbag Inflator (Dual Stage - 1st Stage) Circuit Open or Increased Resistance
      • Possible Causes: Wiring issues, connector problems, faulty passenger airbag module.
      • Note: Airbag modules need to be replaced; they are not serviceable.

      Seat Belt Pretensioner Faults

      Code: 21-10

      • Description: Driver's Seat Belt Tensioner Circuit Open or Increased Resistance
      • Possible Causes: Damaged pretensioner, faulty wiring, connector issues, corrosion.
      • Solution: MyAirbags can rebuild and repair seat belt pretensioners, restoring them to functional condition and meeting safety standards.

      Code: 22-10

      • Description: Front Passenger's Seat Belt Tensioner Circuit Open or Increased Resistance
      • Possible Causes: Similar issues as the driver's side pretensioner.
      • Solution: MyAirbags can rebuild and repair passenger seat belt pretensioners, ensuring proper operation and occupant safety.

      Impact Sensor Issues

      Code: 23-10

      • Description: Front Impact Sensor (Left Side) Circuit Malfunction
      • Possible Causes: Sensor damage due to collision, wiring problems, faulty connections.
      • Recommendation: Impact sensors typically need to be replaced; repair is not recommended. Use OEM parts for reliability.

      Code: 24-10

      • Description: Front Impact Sensor (Right Side) Circuit Malfunction
      • Possible Causes: Similar issues as the left side impact sensor.
      • Recommendation: Replace the faulty sensor to ensure the SRS functions correctly during a collision.

      Occupant Detection System Faults

      Code: 15-20

      • Description: Front Passenger's Weight Sensor Failure
      • Possible Causes: Damaged weight sensor, faulty wiring, connector issues.
      • Recommendation: May require sensor replacement or professional calibration; consult with an Acura specialist to ensure accurate occupant detection.

      Code: 15-30

      • Description: Front Passenger's Seat Belt Tension Sensor Failure
      • Possible Causes: Faulty seat belt tension sensor, wiring problems, connector issues.
      • Recommendation: May require sensor replacement; professional diagnosis is recommended.

      Pyrotechnic Battery Disconnect (Pyro Fuse) Faults

      Code: 61-10

      • Description: Emergency Battery Terminal Fuse Failure
      • Possible Causes: Activation due to collision, faulty wiring, connector problems.
      • Solution: MyAirbags can repair or replace the pyrotechnic battery fuse, restoring proper electrical function and vehicle safety systems.

      Additional Common Faults

      Code: 81-XX

      • Description: SRS Communication Error with Other Control Units
      • Possible Causes: Faulty control module, CAN bus communication issues, damaged wiring.
      • Solution: MyAirbags can repair or reset the airbag control module, helping to restore proper communication.

      Code: 31-10

      • Description: Side Airbag (Driver's Side) Inflator Circuit Open or Increased Resistance
      • Possible Causes: Defective side airbag module, wiring issues, connector problems.
      • Note: Side airbag modules must be replaced; they cannot be repaired.

      Code: 32-10

      • Description: Side Airbag (Passenger's Side) Inflator Circuit Open or Increased Resistance
      • Possible Causes: Similar to the driver's side issues.
      • Note: Replacement of the side airbag module is required.

      Troubleshooting Tips

      • Use Acura-Specific Diagnostic Tools: Employ diagnostic equipment compatible with Acura vehicles to accurately read and interpret SRS fault codes.

      • Perform a Thorough Visual Inspection: Examine all related wiring, connectors, and components for signs of damage, wear, corrosion, or disconnection. Pay special attention to areas affected by collision damage.

      • Safety Precautions: Always disconnect the battery and wait at least 3 minutes before working on the SRS components to prevent accidental airbag deployment.

      • Replace Non-Serviceable Components with OEM Parts: Use genuine Acura parts to maintain system integrity and ensure compatibility.

      • Consult Professional Services: For complex issues or if unsure, consult with an Acura-certified technician or dealership.

      Recommendations for Salvage Rebuilders

      1. Accurate Diagnostics:

        • Strategy: Utilize professional-grade diagnostic equipment to identify all stored DTCs and understand the underlying issues.

      2. Professional Repair Services:

        • Strategy: For components like the airbag control module and seat belt pretensioners, consider using MyAirbags to ensure they meet OEM specifications and safety requirements.

      3. Regulatory Compliance:

        • Strategy: Ensure all repairs comply with local and federal safety regulations, including those set by the National Highway Traffic Safety Administration (NHTSA), to guarantee the vehicle's roadworthiness.

      4. Detailed Documentation:

        • Strategy: Maintain comprehensive records of diagnostics, repairs, parts used, and services performed for transparency, legal compliance, and future reference.

      5. Continuous Education:

        • Strategy: Stay informed about Acura service bulletins, safety recalls, and updates related to the SRS/Airbag system to enhance repair quality and safety.

      Disclaimer

      The codes listed above are generalized and may vary depending on the specific model and year of the Acura vehicle. For precise diagnostics, always refer to the manufacturer's service information or use a professional-grade diagnostic scanner. MyAirbags can help repair and reset specific SRS components, but it's crucial to ensure all repairs are performed by qualified professionals to maintain vehicle safety and compliance with regulations.

      By understanding these common DTCs and knowing which components can be repaired or need replacement, you can effectively troubleshoot and resolve SRS issues in Acura vehicles. Utilizing professional services like MyAirbags not only saves time and money but also ensures that safety systems are restored to their original standards, keeping you and your passengers safe on the road.