WOMS
B code body Medium severity

B1917 Air Bag Memory Clear Circuit Failure

The OBD2 code B1917 indicates a failure in the airbag memory clear circuit, which may prevent the airbag system from properly resetting or clearing stored fault codes

Definition

The OBD2 code B1917 indicates a failure in the airbag memory clear circuit, which may prevent the airbag system from properly resetting or clearing stored fault codes

Common causes

  • Faulty airbag control module
  • Damaged wiring or connectors
  • Poor ground connection
  • Corroded terminals
  • Software issues or glitches
  • Low battery voltage
  • Previous accident damage
  • Faulty sensors or components in the airbag system

Common misdiagnoses

  • Faulty airbag module
  • Wiring issues or shorts in the airbag system
  • Defective crash sensors
  • Malfunctioning seat belt pretensioners
  • Issues with the airbag control unit
  • Problems with the vehicle's diagnostic system or software
  • Battery or power supply issues affecting the airbag system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. Addressing any additional codes may help in diagnosing the issue

  2. 2. Inspect the Airbag System

    Visual Inspection: Check the airbag system components, including the airbag control module, wiring harnesses, and connectors for any visible damage, corrosion, or loose connections

  3. 3. Connector Check

    Ensure that all connectors are securely attached and free from dirt or moisture

  4. 4. Test the Airbag Control Module

    If accessible, test the airbag control module for proper operation. This may require specialized equipment or software

  5. 5. Check for any signs of physical damage or burnt components on the module

  6. 6. Check the Wiring

    Inspect the wiring associated with the airbag system, particularly the memory clear circuit. Look for frayed wires, shorts, or open circuits

  7. 7. Use a multimeter to test for continuity and proper voltage in the wiring

  8. 8. Clear the Codes

    After performing inspections and repairs, clear the trouble codes using an OBD-II scanner

  9. 9. Monitor the system to see if the code returns

  10. 10. Check for Ground Issues

    Ensure that the airbag control module has a good ground connection. Poor grounding can lead to various electrical issues

  11. 11. Inspect the SRS Components

    Check the status of other SRS (Supplemental Restraint System) components, such as seat belt pretensioners and crash sensors, as they can affect the airbag system's operation

  12. 12. Consult Technical Service Bulletins (TSBs)

    Look for any manufacturer-specific TSBs related to the B1917 code. There may be known issues or recalls that could provide guidance

  13. 13. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or an automotive technician with experience in airbag systems. They may have access to advanced diagnostic tools and resources

  14. 14. Replace Faulty Components

    If any faulty components are identified during the inspection, replace them as necessary. This may include the airbag control module or wiring harnesses.Safety Note: - Working on airbag systems can be dangerous due to the potential for accidental deployment. Always follow safety precautions, including disconnecting the vehicle's battery and waiting for a specified time before working on the airbag system. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1917 code