Need to change a starter. Need a diagram to show

Note the diagram? What about your security system? Make sure battery has a full charge and battery connections all good. If you unplug starter relay and use jumper sire between terminal 30 and 87, the starter should crank. If you try this make sure tranny is in park or neutral and parking brake is set. I don't know exactly what testing you have done? I'm just trying to see if starter motor will crank the engine? Even so, if it does crank that doesn't mean it will start and run.
The pcm grounds the starter relay, that is why I asked about security system.

The ignition switch does not go to the starter solenoid . Pin 87 at the starter relay sends B+ voltage to the starter relay . Do you know what a starter relay is an how it works ? The ignition switch is an input to the PCM - engine computer . When the PCM sees this B+ voltage from the switch it energizes the starter relay sending B+ voltage to the starter solenoid . http://www.bbbind.com/free_tsb.html free wiring diagrams !

I hope this diagram helps.

have a load test done on the battery to check for dead cell. ensure that the battery posts and terminals are shiny clean and tight.

More info what are you trying to do, try to speak American cause I don't understand the queens English.

you'll want to get a better manual contact your dealer or contact G/M for help they do have a tech. web site

the diagram should be on the sticker in front of your fan belt cover guard along with diagrams for serpentine belt and engine specs.

What exactly is the problem? Im an installer for Quality Auto Sound

take the negative side off the battery put the car on ramps secure the rear end so it does not roll and if you need a diagram for removing and installing the starter try autozone

Can you post what engine you have in this vehicle. It will help ensure that the correct diagram be posted.

If you do not know, you can usually go to the local auto parts store and they can print one out for you or they will have a Haynes type manual that would have that information in it.