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

Airbag Control Module

  • B1000: SRS Control Unit Malfunction

    • Indicates a fault within the airbag control module itself.
    • MyAirbags can reset and repair the airbag control module, restoring it to factory condition.
  • B1001: SRS Control Unit Memory Error

    • Memory corruption or internal failure in the control module.
    • MyAirbags can reset and repair the airbag control module, resolving memory errors.

Airbags (Driver and Passenger)

  • B0010: Driver Airbag Inflator Circuit Open

    • Open circuit detected in the driver's airbag wiring.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.
  • B0011: Driver Airbag Inflator Circuit Short to Ground

    • Short circuit to ground in the driver's airbag circuit.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.
  • B0020: Passenger Airbag Inflator Circuit Open

    • Open circuit detected in the passenger's airbag wiring.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.
  • B0021: Passenger Airbag Inflator Circuit Short to Ground

    • Short circuit to ground in the passenger's airbag circuit.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.
  • B0026: Side Airbag (Driver) Inflator Circuit Open

    • Open circuit in the driver's side airbag wiring.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.
  • B0028: Side Airbag (Passenger) Inflator Circuit Open

    • Open circuit in the passenger's side airbag wiring.
    • Note: Airbag inflators themselves cannot be repaired and must be replaced.

Seat Belts and Pretensioners

  • B0030: Driver Seat Belt Pretensioner Circuit Open

    • Open circuit in the driver's seat belt pretensioner wiring.
    • MyAirbags can rebuild and repair seat belt pretensioners, restoring them to working condition.
  • B0031: Driver Seat Belt Pretensioner Circuit Short to Ground

    • Short circuit to ground in the driver's seat belt pretensioner circuit.
    • MyAirbags can rebuild and repair seat belt pretensioners, resolving electrical issues.
  • B0040: Passenger Seat Belt Pretensioner Circuit Open

    • Open circuit in the passenger's seat belt pretensioner wiring.
    • MyAirbags can rebuild and repair seat belt pretensioners, restoring functionality.
  • B0041: Passenger Seat Belt Pretensioner Circuit Short to Ground

    • Short circuit to ground in the passenger's seat belt pretensioner circuit.
    • MyAirbags can rebuild and repair seat belt pretensioners, fixing electrical faults.

Impact Sensors

  • B0050: Front Impact Sensor (Driver) Circuit Malfunction

    • Faulty signal from the driver's front impact sensor.
    • Note: Impact sensors typically need to be replaced; repair is not recommended.
  • B0051: Front Impact Sensor (Passenger) Circuit Malfunction

    • Faulty signal from the passenger's front impact sensor.
    • Note: Impact sensors typically need to be replaced; repair is not recommended.
  • B0052: Side Impact Sensor (Driver) Circuit Malfunction

    • Faulty signal from the driver's side impact sensor.
    • Note: Impact sensors typically need to be replaced; repair is not recommended.
  • B0053: Side Impact Sensor (Passenger) Circuit Malfunction

    • Faulty signal from the passenger's side impact sensor.
    • Note: Impact sensors typically need to be replaced; repair is not recommended.
  • B0054: Rear Impact Sensor Circuit Malfunction

    • Faulty signal from the rear impact sensor(s).
    • Note: Impact sensors typically need to be replaced; repair is not recommended.

Collapsible Steering Column

  • B0060: Steering Column Position Sensor Circuit Malfunction

    • Issues with the collapsible steering column's position sensor wiring or sensor itself.
    • Note: May require replacement or professional repair; consult a specialist.
  • B0061: Steering Column Collapse Mechanism Fault

    • Malfunction in the steering column's collapse mechanism (could be mechanical or electrical).
    • Note: May require replacement or professional repair; consult a specialist.

Pyro Fuses

  • B0070: Battery Disconnect Unit Circuit Open

    • Open circuit in the pyro fuse (battery disconnect unit) wiring.
    • MyAirbags can repair or replace pyro fuses (battery fuses), restoring proper circuit function.
  • B0071: Battery Disconnect Unit Circuit Short to Ground

    • Short circuit to ground in the pyro fuse circuit.
    • MyAirbags can repair or replace pyro fuses, resolving electrical issues.
  • B0072: Battery Disconnect Unit Activation Fault

    • Fault indicating the pyro fuse has been activated or is faulty.
    • MyAirbags can service pyro fuses, replacing or resetting them as needed.

Additional Codes Commonly Encountered

  • B0080: Driver Seat Position Sensor Circuit Malfunction

    • Issues with the driver's seat position sensor affecting airbag deployment logic.
    • Note: May require sensor replacement; consult a specialist.
  • B0090: Passenger Occupant Detection System Fault

    • Malfunction in the system that detects passenger presence and weight.
    • Note: May require sensor calibration or replacement; consult a specialist.
  • B0091: Multiple Restraint System Malfunction

    • General fault indicating issues in multiple components of the SRS.
    • MyAirbags can reset the airbag control module, addressing multiple system faults.
  • U0151: Lost Communication with Restraints Control Module

    • Communication failure between the airbag control module and other vehicle systems.
    • MyAirbags can repair or reset the airbag control module to restore communication.

Notes for Troubleshooting

  • Open Circuit: Indicates a break in the electrical pathway, often due to disconnected connectors, broken wires, or failed components.

  • Short to Ground: The electrical circuit is unintentionally connected to the ground, often due to damaged insulation or wiring contacting metal parts.

  • Component Malfunction: The sensor or module itself may be faulty and require replacement or repair.


Recommendations for Salvage Rebuilders

  1. Visual Inspection: Start with checking all connectors, wiring harnesses, and components for physical damage.

  2. Use Professional Repair Services: For faulty modules and seat belts, consider using MyAirbags to repair or reset components, ensuring they meet safety standards.

  3. Reset Procedures: After repairs, use a compatible scan tool to clear codes and reset the SRS system.

  4. Refer to Service Manuals: Always consult the specific Honda service manual for the vehicle's year and model for detailed diagnostics and repair procedures.

  5. Safety Precautions: Disconnect the battery and wait at least 3 minutes before working on SRS components to prevent accidental deployment.


Disclaimer: The codes listed above are generalized and may vary depending on the specific model and year of the Honda 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 always ensure that repairs are performed by qualified professionals to maintain vehicle safety.