Where is the fuse box on a 1999 mercury cougar? - Answers According to the 1999 Mercury Cougar owner Guide : The fuse for the fuel pump is located in the Power Distribution Box located in the engine compartment ( the P.D. box is " live " ) ( it is the Fuse diagram for 1999 mercury cougar - Fixya SOURCE: 2000 Mercury Cougar Power door locks do not work on either door. Power door locks are on the same fuse as the alarm system. The fuse is located in the passenger compartment fuse panel under the steering wheel. There is a pull down lever that will release the fuse box. The fuse for the alarm system/locking system is #25.