'04 will not start, won't turn over

What is the actual voltage reading? In the diagram, the red wire is hot all the time. The purple wire at the starter solenoid, goes hot with the key in the crank position. I looked at a c1500 Sub.

6.4 at battery, 6.4 at starter solenoid RED, when the ignition is turned on there is 0.0 at the starter solenoid purple.

have you battery and connections checked.you should have atleast 12 volts at those connections.

I agree. With the key in the crank position shouldn't drop below 10 volts, possibly 9.5 volts.

I said it was a 'cheap meter' and I'm getting similiar readings on other vehicle batteries. thanks for the assist

Maybe the meter is faulty? That voltage reading is no good, I don't care which vehicle battery you tried it on, unless all the batteries were really low.

do you have a drawing on the purple wire that goes to the starter. Is it straight off of the key switch?

the ingition switch is on the lower steering column.check the purple for start signal there.if ok you need to make sure the purple wire is on the s terminal on the selonid and your getting start signal when your holding the key in start possition.you can do all this with a test light.allways trouble shoot dont just start replaceing parts.

has this start signal wire been known to 'short'?

no you could have installed it on the wrong place on the seliniod.check it like i said.

Here you go.

where is the switch located at on the steering column?

lay under the dash its right on the top of the column youll see the purple wire. check for voltage is coming with the key in start poss.