LI91.25-P-046797_Ver_2 PDF

A service bulletin that addresses issues with multi-contour/dynamic seat air cushions in certain vehicles. It discusses problems such as non-inflation or bubble formation in the air cushions, citing potential causes like inoperative transistors and pressure issues. The document provides detailed remedial steps, including checking specific diagnostic trouble codes (DTCs) and replacing affected components. It also includes images and diagrams for visual reference, along with a parts list and control unit fault information.