My 3.0 CRD GC shut off a half mile from my house on the way to work and wouldn't fire up again. The dash lights lit up were the oil can and the lightning bolt with a line on each side )/( that was flashing. The jeep dealer said I had 3 pages of error codes. They showed me the PCM and it was pretty corroded with some battery acid on it from the old battery. Gonna cost <$650 for a new PCM + programming and install =$1,100. Sadly the new one will go under the battery too.