An instant change that affects the whole cluster is generally caused by loss of ground or power. If the cluster was de-powered, I think the PATS system would not recognize the key put into the ignition switch as all memory of authorized keys is kept there.
I would look at the power and grounds under the hood, under the power distribution box(having relays and fuses) directly next to the battery. You should be able to remove the retaining bolts and lift it up to inspect the underside for loose connections, etc. Also you could remove/replace all the fuses and relays in the PDB. Doing so will insure that any that may have gotten jarred loose by the deer impact would be freshly seated and hopefully gotten good connections.
I doubt your battery is damaged by the collision and suspect loose bits & pieces that can be corrected by examination and refreshing their seating into the sockets.
tom
I would look at the power and grounds under the hood, under the power distribution box(having relays and fuses) directly next to the battery. You should be able to remove the retaining bolts and lift it up to inspect the underside for loose connections, etc. Also you could remove/replace all the fuses and relays in the PDB. Doing so will insure that any that may have gotten jarred loose by the deer impact would be freshly seated and hopefully gotten good connections.
I doubt your battery is damaged by the collision and suspect loose bits & pieces that can be corrected by examination and refreshing their seating into the sockets.
tom
