2005 Jeep Commander Electrical problems

As my daughter was driving down a major parkway, at approximately 45 mph during day traffic hours, the jeep completely died while her foot was on accelerator. She thought she must have moved her foot around or wasn't sure if her knee or tennis shoe brushed the ignition but felt something caused the jeep to completely die. As she was still going down the parkway, she had to quickly shift the jeep into neutral and restart the engine while it was still moving and shift back into drive. Update 9/15/15*cw updated 12/28/15. *Jb

All dash board lights would begin to flash. Steering would fail. Air conditioner would shut down. All accessories would stop. Engine would stall or shut down. This would happen at any speed. A safety hazard! When taken to the dealer they initially could not duplicate problem. After multiple tries they replaced "short powertrain control module and front control module" at a cost of $1040. This repair lasted less than one year and the problem occurred again. Took it to a local mechanic and he found the...