WOMS
B code body High severity

B1910 Air Bag Diagnostic Monitor Ground Circuit Failure

The OBD2 code B1910 indicates a failure in the ground circuit of the airbag diagnostic monitor, which can affect the airbag system's functionality and safety

Definition

The OBD2 code B1910 indicates a failure in the ground circuit of the airbag diagnostic monitor, which can affect the airbag system's functionality and safety

Common causes

  • Damaged or corroded wiring in the ground circuit
  • Poor ground connection or loose ground terminals
  • Faulty airbag control module
  • Defective connectors or terminals
  • Short circuit in the ground circuit
  • Open circuit in the ground wiring
  • Issues with the vehicle's body or frame grounding

Common misdiagnoses

  • Faulty airbag module
  • Defective airbag sensor
  • Wiring issues unrelated to the ground circuit
  • Faulty seat belt pretensioner
  • Malfunctioning crash sensor
  • Issues with the airbag control unit
  • Battery or power supply problems
  • Corroded connectors or terminals

Troubleshooting steps

  1. 1. Read the Codes

    Use an OBD-II scanner to confirm the presence of the B1910 code and check for any other related codes that may provide additional context

  2. 2. Visual Inspection

  3. 3. Inspect the airbag system wiring and connectors for any signs of damage, corrosion, or loose connections

  4. 4. Check the ground connections related to the airbag system, ensuring they are clean, tight, and free of corrosion

  5. 5. Check Ground Circuit

  6. 6. Use a multimeter to test the ground circuit for continuity. Disconnect the airbag module and check the ground wire for continuity to the vehicle's chassis

  7. 7. If there is no continuity, trace the ground wire back to its source and check for breaks or poor connections

  8. 8. Inspect the Airbag Module

  9. 9. Ensure that the airbag module is properly connected and that there are no issues with the module itself

  10. 10. If possible, test the airbag module with a known good unit to rule out module failure

  11. 11. Check for Short Circuits

  12. 12. Inspect the wiring harness for any signs of short circuits or pinched wires that could be causing the ground circuit failure

  13. 13. Use a multimeter to check for shorts to ground in the airbag system wiring

  14. 14. Test the SRS System

  15. 15. If equipped, use a scan tool to perform an SRS (Supplemental Restraint System) diagnostic test. This may provide additional information about the status of the airbag system

  16. 16. Clear Codes and Test Drive

  17. 17. After addressing any issues found, clear the codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  18. 18. Refer to the vehicle's service manual for specific wiring diagrams and troubleshooting procedures related to the airbag system

  19. 19. Professional Help

  20. 20. If the issue persists after performing these steps, consider seeking assistance from a professional technician or an automotive electrician who specializes in airbag systems. Always remember to take proper safety precautions when working with airbag systems, as they can be dangerous if mishandled. Disconnect the vehicle's battery and wait for a period of time before working on the airbag system to ensure that any stored energy is dissipated