this is located in passenger door switch
The engine computer is the ignition module.
The keyless entry module, on your Ford automobile, is located in the engine compartment. The module is bolted to the firewall.
The 1993 Jeep Grand Cherokee engine control module is located on the firewall in the engine compartment. The engine control module will be on the passenger side of the firewall.
The fuel filter on a 2005 Grand Cherokee is part of the fuel pump module in the fuel tank.
It does have a computer, no programming should be necessary.
loose wire or most likely ignition module
On the pump module in the tank.On the pump module in the tank.
Engine control module
Inside the dome light fixture. Slide it forward about 2 inches and it will drop off the clips. Control module is mounted inside the cover.
The powertrain control module is visible from the engine compartment. It is in the firewall on the passenger side. The RAP module for your keyless entry/keypad is in the jack storage compartment.
The fuel pump is located in a unit inside the fuel tank. It is called a "fuel module" which contains the pump, sending unit, float etc allin one unit. The fuel has to be removed, the fuel tank dropped, and the entire module has to be replaced. I had mine replaced on a 1993 Jeep Grand Cherokee Laredo 4.0 and it cost aboput $800.
Inside Passenger door connected to the window/door switches. has small antenna comming out of it.