Try to test ignition switch
Found this page 8w.10.9



What I have (Continuity test)
* Off : pin 5 7 + 2
* ACC : pin 5 7 + 2 + 3
* Run : Pin 5 7 + 1 +3 + 6
* Start : Pin 5 7 + 1 + 3 + 4
Wiring diagram I found not totally confirm I'm Ok but seem's to be OK

Last thing I could notice. I don't have on my car the little black switch on the ignition :


Thanks to all

Nicolas