Chev cruize 2012 no ignition power

https://www.jeepgarage.org/threads/pcm-no-communication.21741/

This will give you a starting place. Make sure you have good clean and tight connections.

There could be several reasons why your 2012 Spyder RT-SE5 is not starting when you turn the switch. Here are a few things you can check:

1. Battery: The first thing to check is the battery. If the battery is weak or dead, the bike won't start. Check the battery connections to make sure they are tight and clean. If the battery is dead, you may need to replace it.
2. Fuses: Check the fuses to see if any are blown. If a fuse is blown, it could be preventing the bike from starting. Replace any blown fuses with the correct type and rating.
3. Starter motor: The starter motor may be faulty. Try tapping the starter motor gently with a hammer or other tool while someone else turns the ignition key. If the bike starts, then the starter motor is likely the problem.
4. Ignition switch: The ignition switch may be faulty. If you turn the key and nothing happens, try wiggling the key or turning it back and forth slightly to see if the bike starts. If it does, then the ignition switch may need to be replaced.
5. Fuel system: The fuel system may be clogged or there may be a problem with the fuel pump. Check to make sure there is fuel in the tank and that the fuel lines are not blocked. You may need to clean or replace the fuel filter.

If you are unable to identify the problem, it is recommended that you take your bike to a certified mechanic or dealership for diagnosis and repair.

could be battery issues

i had the same prob i just wedged the button down with a piece of paper quick fix withou replacing the switch

It depends on vehicle to vehicle.But its not very diffult on mot of cars to replace ignition switch.Basic theory of replacing ignition switch is same for all car models.:-----
To replace ignition switch on your vehicle,i suggest you few helplinks with proper ignition switch replacing procedure. View its details and you can replace ignition switch on your vehicle.-------------Click the link below :----------------

How to remove ignition switch on VW Car models?

http://schematicsdiagram.blogspot.com/2011/12/how-to-remove-ignition-switch-on-vw-car.html

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How to replace Ignition Lock Cylinder on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-ignition-lock-cylinder.html

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Ford Taurus: Ignition Switch & Steering Column Replacing?

http://repairhelpcenter.blogspot.in/2012/06/ford-taurus-ignition-switch-steering.html

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How to replace Ignition Switch on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-ignition-switch-on-acura.html

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How to Replace Ignition Switch on Chevrolet Caprice Classic?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-ignition-switch-on.html

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1995 Ford Taurus: Ignition switch not turning OFF? http://repairhelpcenter.blogspot.in/2012/06/1995-ford-taurus-ignition-switch-not.html
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Ignition Switch Will Not Turn Off? http://schematicsdiagram.blogspot.in/2012/04/ignition-switch-will-not-turn-off.html
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These will help.
Thanks.

Check for a dead battery or bad connections at the battery terminals.

Make sure all the ends on your battery cables are clean and tight. I got a tow in because my car would not try to start even tried boosting to no avail. All my lights and radio was working but they said the cable was corroded and would not let the full power work. We replaced the battery cables and worked like new now.

Be sure it is in park...Sounds like a dead battery.....If you know for sure battery is good you have to check alll fuses for power...If the battery is good for sure and you turn the switch on and cant get power to any fuses or no dash lights then the ignition switch has failed....You will have to use a test light to check fuse power..So if all is good ...battery,fuses,and dash lights come on when ignition is turned on check to be sure battery cables are tight then it should be the starter....sometimes the small wire that connects to the starter solenoid will vibrate loose and all you have to do is tighten wire but disconnect battery before you tighten wire...check all wires connected to starter....If all is clean and tight then the starter has failed...hope this will help....I am standing by if you need more assistance...........................................metalpoet

If you have an Alarm system the Alarm may be cutting off the power to the starter, bypass the alarm and try.

Most likely your starter or the starter solenoid. (assuming your battery isn't just really low...)