I have a 2007 DiscoveryTDV6 with a Fault code B1A55-14 (AF) Crash record output circuit short to ground or open. This is supposed to be fixed by resetting the Intertia switch. I cannot for the life of me find this thing and I've taken most of the passenger side behind the glovebox apart. The wiring diagram does not show an inertia switch. Can anyone please tell me if there is one and where the hell it is exactly. If not how to I reprogram ECU.