MKZ/Fusion impact sensor

I bought a wrecked 2010 MKZ yesterday hit in the front andI am wondering how many impact sensors are in the front of these cars. I found one on the passenger side on the same extension of the harness as the ambient air temp sensor but there are two plugs I am unsure of that are on the driver side. I think they are for hood switch and horn but I would like someone to confirm there is only supposed to be one. Thank you