No crank sometimes '00obw AT - neutral safety switch?

[Cougar]

High input = short

 

Are you sure about that Nipper? Usually a high condition would mean a 'open' condition I would think. Like the circuit isn't terminated.

[aircraft engineer]

Try it in neutral and then wiggle the shifter while turning the key.

 

IF it turns the starter, it's the neutral safety switch, otherwise it's somewhere else.

 

hi input is usually an "open" circuit not a short but the switch might be bad anyway

[nipper]

Are you sure about that Nipper? Usually a high condition would mean a 'open' condition I would think. Like the circuit isn't terminated.

 

Well you have a "high" and a "low" High output means its seeing voltage/current/signal when it is not expecting too, OR the switch/sensor is out of range (its expecing to see 1.2 volts and its seeing 3 volts). Low is the opposite.

 

Now if it was a resistor based sensor where it is looking for a resistance (which switches are not usually) like a temp sensor, then i would agree.

 

i cant really see them using a resistance based logic to a switch, but i guess its possible. Either way i would replace the switch and the problem should go away.

[Cougar]

I agree with what you say there Nipper. I just don't equate a high as a short, as you stated earlier.