NEED HELP 2006 trailblazer no power/start

[06tbrudy]

New ignition control box good battery new altnator
Dome light on put key in turn no click no chimes no start no power at all try again multiple times after shutting n opening door mulptle times try key again sometimes it starts but is delayed ...HELPPPPPPP

 

[mrrsm]

When did you have all of THIS Stuff Installed?

Sub and amp 0 gauge ofc wire new Kenwood deck and 6.5 speakers

...and was it Professionally installed or...a DIY job?

Also... What if any Codes have shown up from your use of an OBD2 Code Reader?

 

[06tbrudy]

When did you have all of THIS Stuff Installed?

Sub and amp 0 gauge ofc wire new Kenwood deck and 6.5 speakers

...and was it Professionally installed or...a DIY job?

Also... What if any Codes have shown up from your use of an OBD2 Code Reader?

Po411 n po191....i installed myself I've been doing for 15 years never once messed up ... Was installed 6 months ago

 

[mrrsm]

If 'New ignition control box' means you just replaced the Ignition Switch underneath the Steering Column... This video from Eric "OH" at South Main Auto shows how to run down problems with Wire Diagnostics using a Tech 2 and a "Scope On A Rope" Light Probe for continuity testing in the Ignition Switch Wiring (even New Ones if they are NOT ACDelco Brand can go sideways):

...and another No Start No Crank Video from @MAY03LT...

 

[gmcman]

Have you checked for voltage at the starter solenoid when you turn the key to Start?

 

[Mooseman]

New ignition control box

Do you mean the PCM? If yes, what was the reason for replacing it?

 

[06tbrudy]

Do you mean the PCM? If yes, what was the reason for replacing it?

No the little box under steering wheel and yes it it AC Delco

 

[Mooseman]

You mean the ignition switch? Maybe it wasn't installed properly with the gears set right. There is a video on YT but I'm at work and can't access it right now.

 

[mrrsm]

As per @Mooseman...

How to Properly Align the Ignition Switch "Rack & Pinion" Gear Teeth between the ACDelco Ignition Switch...and the Key-Lock in the Steering Column during a Complete Switch R&R::

 

[06tbrudy]

I used that same video as my reference to do the igntion switch