Thread: power locks remote lock and horn and rear defrost dont work

so my 100 amp fuse blew (battery) and i replaced it but now my remote lock power locks and rear defrost no longer work could anybody help me out as to why? both 20 amp fuses in the car related to the rr defog ar not burnt yet it doesnt work at all.

forgot to mention alarm system also doesnt work

You might have fried your courtesy module or keyless entry module