Possible Causes
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DTC 25/1153 could be caused by short between Black wire (circuit LSP+) and Red wire (circuit LSP-), short to ground or open in Blue/Black or Gray/Black wires, seat position sensor malfunction or air bag sensor assembly malfunction.