DTC B1628/82 Front Passenger Side - Side Airbag Sensor Assembly Initialization Incomplete; DTC B1637/82 Lost Communication with Passenger Side Rear Airbag Sensor I; DTC B1638/82 Passenger Side Rear Airbag Sensor Initialization Incomplete; DTC B1647/82 Lost Communication with Front Passenger Side Satellite Sensor Bus: Wiring Diagram
WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.