Rear Side Switch Module LIN Communication Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
The rear power seat module switch monitors the LIN communication bus between the components related to the switches on the rear seat.
HINT:
DTC U0211, U0246, U1130 and U1131 are output simultaneously when 1) there is an open or short in the LIN communication bus between the switches on the rear seat, and 2) their LIN communication bus stops.