Ok,
do not see any ground straps on bell housing. spliced into ppl wire (s from ignition on starter) and apply 12V from batt starts and runs everything works. When key turned to start there is only a single click, comes from under dash passenger side....no crank, when key is on all fuses are powered. Switched out Ign relay no change. Would suspect it must be ignition switch BUT none of the symptoms associated with switch failure or previous problems. Put on scanner and it shows no codes recorded. Wouldn't I get some code if switch failed. Have doubts it is ignition switch but what else could it be...hate to start buying parts. Only 46,000 miles