Possible Causes
WARNING: This page is about a different car, the 2004 Toyota Matrix and 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
DTC 25/1153 could be caused by short between Green/White wire (circuit LSP+) and Red/Black wire (circuit LSP-), short to ground or open, seat position sensor malfunction or air bag sensor assembly malfunction.