B1910 – Air Bag Diagnostic Monitor Ground Circuit Failure

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

The severity of ODBII code B1910 is typically considered moderate to high.

Common Causes For: B1909 Air Bag Crash Sensor #2 Ground Circuit Short To Ground

• 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 misdiagnosis for B1910 Air Bag Diagnostic Monitor Ground Circuit Failure

• 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

Common Troubleshooting Steps

When dealing with OBD-II code B1910, which indicates an “Air Bag Diagnostic Monitor Ground Circuit Failure,” it’s important to follow a systematic approach to troubleshoot the issue. Here are common troubleshooting steps:

• 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.
• Visual Inspection:
• Inspect the airbag system wiring and connectors for any signs of damage, corrosion, or loose connections.
• Check the ground connections related to the airbag system, ensuring they are clean, tight, and free of corrosion.
• Check Ground Circuit:
• 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.
• If there is no continuity, trace the ground wire back to its source and check for breaks or poor connections.
• Inspect the Airbag Module:
• Ensure that the airbag module is properly connected and that there are no issues with the module itself.
• If possible, test the airbag module with a known good unit to rule out module failure.
• Check for Short Circuits:
• Inspect the wiring harness for any signs of short circuits or pinched wires that could be causing the ground circuit failure.
• Use a multimeter to check for shorts to ground in the airbag system wiring.
• Test the SRS System:
• 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.
• Clear Codes and Test Drive:
• 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.
• Consult Service Manual:
• Refer to the vehicle’s service manual for specific wiring diagrams and troubleshooting procedures related to the airbag system.
• Professional Help:
• 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.