B0031 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B0031 – Second Row Left Frontal Stage 1 Deployment Control
B0031 Possible Symptoms
Air Bag Warning Light ON
B0031 Possible Causes
Faulty Second Row Left Frontal Air Bag,Second Row Left Frontal Air Bag harness is open or shorted,Second Row Left Frontal Air Bag circuit poor electrical connection,Faulty Sensing and Diagnostic Module (SDM)
When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. SDM then performs deployment loop voltage out of range test and deployment loop resistance measurement test. If voltage out of range test detects a short to voltage condition, the resistance measurement test will not be performed.