On the brake pedal assembly.
The 1995 Mercury Villager turn signal relay switch is located beneath the drivers side dashboard. The turn signal relay switch will be left of the brake pedal.
On the brake pedal.
This is usually cause by a stuck brake light switch on the brake pedal. Replace it.
If the brake lights stay on that probably means the switch on the brake pedal that activates them is defective.
On the firewall near the brake master cylinder.
Brake light switch needs adjusting or replacing. It is too sensitive.
Stop light switches are mounted on the brake pedal lever, typically.
"Stuck" brake lights indicate that the brake light switch on the brake pedal is broken. It should be replaced.
The MAP sensor should be on the firewall just above the brake booster.
In the 1997 Mercury Villager, the Transmission fluid dipstick is located on the driver's side of the engine just in front of and below the master cylinder/brake fluid check. The 97 Villager has a bulbous knob on top with no indication that it is the Transmission fluid.
Not only the brake switch but also there are 2 plastic buttons that depress the switches sometimes these wear out and need replaced ,I couldn't find these so I improvised .
The starter is located directly underneath the brake fluid reservoir (which is located on the right front corner as you open the hood)...good luck