Hi Dave, Funny you should mention this... I had a similar problem just today. I decided to unhook my door lock module at the circuit breaker (brown wire) and was surprised to find that my car wouldn't start after I unhooked it. The symptom was the same: my start inhibit relay would click, but no start. Considering the only item that these circuits have in common is the inertia switch, it had me confused. I should also note the car would run fine when I roll-started it. After studying the wiring diagram, I noticed that my car (early, 1063) had the starter update done, but the "new" wire that is recommended by the service bulletin had been rather lazily run to the door lock circuit breaker! So no power to the door locks meant no power to the starter. I found this strange on my seemingly otherwise unhacked car. After putting the wire on the correct breaker, the car fired right up, smooth as silk. I'm assuming the car you're working on is not your late(r) 81? If not, it's something to think about. I guess you never know what might of happened to the wiring in the last 23 years... For me and 1063, Jake Kamphoefner ----- Original Message ----- From: "Dave Swingle" <swingle@xxxxxxxxxxx> To: <dmcnews@xxxxxxxxxxxxxxx> Sent: Sunday, February 08, 2004 1:23 AM Subject: [DML] Starter circuit theory? > Speaking of wierd no-start conditions, after cleaing the fuse > connections I accidently put a bad fuse in position 1 (runs the idle > motor and a bunch of the other engine controls) and for some reason > that I can't divine from the schematic, it caused the starter NOT to > engage. I've solved the problem (new fuse!) but can't figure out why > it caused the problem it did. It should have been able to crank but > not start. > > The starter-inhibit relay would click when I turned the key > to "start" position. Is this circuit (#1) what actually feeds the hot > side of that relay? > > Dave S <--(really po'd after swapping the starter with a spare first) > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/