Ignition lock cylindar installation diagram - 2002 Ford F250 Super Duty SuperCab

The key lock cylinder operates the ignition switch sometimes ignition switch is separate sorry I didn't find where ignition switch is located if the lock cylinder is plugged into it.
You should have a starter relay and starter relay fuse.
This diagram of starter circuit shows the clutch pedal switch in the circuit on an automatic should have the neutral safety switch in the circuit. This is for 95 Rodeo.
Stater Motor Circuit Diagram (1995-1997 2.6L Isuzu Rodeo) (easyautodiagnostics.com)

How do I remove the key ignition cylinder? ' Isuzu SUV Forum (planetisuzoo.com)
Isuzu Trooper Ignition Switch Replacement ' Cost & Service ' RepairSmith
Changing the Ignition Lock: Changing the Ignition Lock, Safley ... (2carpros.com)
Starter and solenoid
Isuzu Trooper Starter replace under 1 Hour - YouTube
Isuzu Trooper (1995 - 1996) - fuse box diagram - Auto Genius
Starting System & Wiring Diagram - YouTube

The ignition module sounds right. The reason the dealer wants to charge $400 is for the labor involved plus the part.

the larger cylindar of the master brake cylindar goes to the front wheels

This link will get you 2007 which should be same. Good Luck.

http://www.the12volt.com/installbay/uploads/2007DodgeCharger.txt

engine should not continue to turn over when key is out sounds like the key switch the wrong one or you have wired it wrong

A car ignition has (2)parts one mechanical &one electircal.if you have to hold the key then replace the switch at the end of the ignition.

if it is the wiring diagram for the Escape you need, here it is:

12 VOLT CONSTANT Connect to BATTERY ONLY STARTER TAN/LIGHT BLUE (+) IGNITION SWITCH HARNESS STARTER 2 N/A IGNITION 1 LIGHT GREEN/PURPLE (+) IGNITION SWITCH HARNESS IGNITION 2 N/A IGNITION 3 N/A ACCESSORY/HEATER BLOWER 1 BLACK/LIGHT GREEN (+) IGNITION SWITCH HARNESS ACCESSORY/HEATER BLOWER 2 N/A KEYSENSE N/A PARKING LIGHTS ( - ) WHITE/BLACK (-) @ SJB, Connector E, Pin 4, See NOTE *1 PARKING LIGHTS ( + ) BROWN (+) @ SJB, Connector C, Pin 19, See NOTE *1 POWER LOCK PINK/WHITE (1-Wire System) See NOTE *2 @ SJB, Connector D, Pin 22, See NOTE *1 POWER UNLOCK Same wire, See NOTE *2 See DIAGRAMS DOOR TRIGGER PINK (-) @ SJB, Connector C, Pin 28, See NOTE *1 DOMELIGHT SUPERVISION USE DOOR TRIGGER TRUNK RELEASE N/A SLIDING POWER DOOR N/A HORN YELLOW/LIGHT GREEN (-) @ SJB, Connector A, Pin 14, See NOTE *1 TACH NOT RED or WHITE/RED @ IGNITION COIL or FUEL INJECTOR WAIT TO START LIGHT N/A BRAKE LIGHT GREEN (+) @ SWITCH ABOVE BRAKE PEDAL FACTORY ALARM DISARM DARK BLUE/LIGHT GREEN (-) @ SJB, Connector D, Pin 3, See NOTE *1 ANTI-THEFT FORD'S SECURILOCK ANTI-THEFT TRANSPONDER SYSTEM TRANSPONDER @ IGNITION SWITCH TUMBLER EXTRA INFORMATION NOTE *1 The SJB (Smart Junction Block) is the FUSE/RELAY BOX on the PASSENGER SIDE of the CENTER CONSOLE. NOTE *2 This vehicle uses a 1-Wire Door Locking System, LOCK requires a (-)Negative thru a 1000 Ohm Resistor and UNLOCK requires a straight (-)Negative

I have 07 Pontiac Grand Prix, the wrong key was inserted into the ignition the other day. Now when I try to use the correct key it will not insert completly in the ignition, goes in until last 1/4in of key. Im stuck, I bought the new lock cylinder but how do I get the old one out? I cant get the key to insert all the way so I cant get it to the "On" position, it will not turn at all. The key that was inserted in error is whole and nothing is missing it seems like there is something stuck. Any help would be appreciated...

YES, THE BEST PLACE FOR YOU TO BE CALLING RIGHT NOW IS THE LOCAL WRECKING YARDS! YEP! THERE GREAT FOR STRANGE PARTS THAT YOU'RE NOT GOING TO FIND NEW, MOST LIKELY. THEY ALSO KNOW WHAT OTHER CARS USED THAT TYPE SWITCH AND CAN REALLY SAVE YOU TIME AND MONEY! I'VE USED THEM, MANY TIMES AND HAVE NEVER HAD A BAD EXPERIENCE FROM ONE. JUST FOR KICKS, IS IT SOMETHING THAT CAN BE MADE. IF SO, YOU MIGHT TRY A MACHINE SHOP. LOTS OF TIME THEY CAN DO THINGS LIKE THAT. COUPLE OF IDEAS FOR YOU. HOPE THEY HELP. IF YOU NEED MORE HELP,REPLY TO:
ARCLIGHT1217