2004 GMC Yukon air bag sensor

Before you do anything, read this info first:Replace the passenger presence system as a complete assembly to prevent possible injury to the occupant. The bladder, the pressure sensor, the seat cushion, and the control module are assembled and calibrated as a unit. Using only some of the components in the service kit will cause the passenger presence system to operate improperly. The PPS module also has to be rezeroed with a tech 2, or it will not function properly. The passenger presence system (PPS) is a calibrated system that requires rezeroing when the system has been serviced or replaced. This is not a do it yourself job, I would leave it to the pro's.