Crankshaft Position Sensor problems of the 2005 Jeep Grand Cherokee

My Jeep wont start. I've checked the alternator, the battery, starter , crank sensor and all relay fuses. The recall on the ignition switch is the only thing I can think of that is not letting the car start.

Purchased vehicle 8/9/08. At this time only problem we was you had to press clock button for radio to work. During 2008 we noticed a lot of odd behavior in electrical areas. October 29, 2009 brought Jeep to used car dealership with these complaints: first check engine light started coming on, then it began flashing, door chime starts dinging, illuminated areas dim & brighten-flashing, dashboard lights go crazy flashing on & off, interior lights turn on & off, transmission lights go crazy & need to shift down in order to get vehicle to drive, headlights & tail lights flash on and off which is very unsafe while driving on a dark highway at night. Used car dealership had car towed to Jeep dealership in new london. These repairs cost $500. 12 for faulty crank sensor, sensor crankshaft, spark plugs, leak at trans electrical. August 17, 2011 took to a new dealership w/ same problems. Went to valenti Jeep in mystic, CT. Was advised junction block needed to be replaced and codes in multiple modules reset-this cost $318. 52. September 10, 2011 back to valenti Jeep for same problems & for install. Of junction box costing $249. 00 because of installation costs & other items we were advised to take care of. Meanwhile as a warning this all begins after check engine light starts flashing. By September 28, 2011 it begins again: at this time check engine light & all other lights start up again, along with fact that you can now pull key out & vehicle is still running. Blinking dash lights, ac on & off, gauges drop to 0, told only reason this is happening is because we have remote start system they don't use. Tech reset system & disconnected our remote start system at a cost of $90. 40. Then by October of 2011-approximately, check engine light has returned & transmission lights are blinking. Also headlights started flashing & tail lights. These issues are very sporadic.

: the contact stated while driving 60 mph on the interstate, there was a loss of all vehicle power, and the engine stalled without warning. Afterwards, the engine was easily restarted. The vehicle was inspected by a dealer who determined the electrical wires along the engine were mounted incorrectly and had worn into. The electrical wires were replaced, but the engine stalling problem persisted. The manufacturer was alerted. Updated 12/28/2006 - whike driving at speeds of 5 - 60 mph all the dasj lights would flash on and off and the vehicle would loose power. So far the dealer has replaced the crank sensor due to wear, front control module.