Re: [DML] Starter circuit theory?

["Dave Swingle" <swingle@xxxxxxxxxxx>]

This is kind of a frankenstein car - the one I'm rebuilding from a 
burned car and a wreck. The entire electrical system - wiring harness 
and all, is out of the wrecked car, and I'm not really sure of the 
vintage of that one but I think its about 10/81. I think you are 
right - there is something "undocumented" in the wiring. At this 
point it's a non-issue but I would really like to understand it. I'll 
dive back into it with a voltmeter when I get a chance - an about a 
week. This also seems like the kind of thing where someone may have 
hacked the wiring to install a security system.

My guess is that the ignition switch kicks the relay, but the relay 
is sourced from fuse #1 instead of main power (not shown in the 
schematic at all). In fact I think that the relay is supposed to pe 
self-powered from ignition switch, since it's only purpose is to 
block starting when not in "park" (which has no function at all on a 
manaul but they leave it in there for consistency in manufacturing).

If I can trace it to that I'll rewire it since I think a 10A fuse is 
a bit light for the starter solenoid.

Dave S

--- In dmcnews@xxxxxxxxxxxxxxx, "Jake" <jkampho@xxxx> wrote:
> 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.
> 





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