Cadillac STS SRS Airbag light issue related to passenger presence module with ODBII codes B0081-39 and B0081-71 on Cadillac STS

Some Cadillac STS owners report experiencing issues with the SRS airbag light related to the passenger presence module, specifically when encountering OBDII codes B0081-39 and B0081-71. Common symptoms include an illuminated airbag warning light on the dashboard, potential failure of the airbag system to deploy properly in an accident, and warning messages regarding the passenger airbag system. These problems can stem from various causes such as a faulty sensor, loose or corroded connections, a defective clockspring, or issues with the airbag control module. Code B0081 indicates a malfunction in the Passenger Presence System (PPS) module, which may disable the passenger airbag due to damaged sensors or faulty wiring. To resolve these issues, owners may need to install a new passenger presence sensor and calibrate it using TECH II to ensure compatibility with the airbag module. It is crucial to address these concerns promptly to maintain the safety and functionality of the vehicle's airbag system.