B0031 Possible Causes
- Faulty second row left front airbag
- Second row left front airbag harness is open or shorted
- Poor electrical connection in second row left front airbag circuit
- Faulty Sensing and Diagnostic Module (SDM)
How to Fix Code B0031?
Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Airbag warning light illuminated
B0031 Meaning
When the ignition switch is turned to the RUN position, the Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. The SDM then performs an out-of-range deployment loop voltage test and a deployment loop resistance measurement test. If the out-of-range voltage test detects a short to voltage, the resistance measurement test will not be performed.