I've got a weird issue with 05 Pontiac Aztek Ignition Lock, Key stuck

[hunchy95]

So the wires on the shifter, the A/T Shift Lock Control Solenoid connector, were broken, causing it to not come out of park and also lock the key in the ignition cylinder...

So we re-did the wiring and now it comes out of park fine, but key still gets stuck in ignition. All the wiring is solid. I did a continuity test from the connector on the shifter to the ignition lock solenoid (ignition lock cylinder control actuator) that moves that locking pin and it beeped so I assume the connection is good from end to end. I also hooked up multimeter and got 12 volts when in park, when shift to drive etc it drops to 0 then back to 12 in park... so that seemed to be correct...

So I assumed it was working and the control voltage is being sent.

However, still not releasing key in park, so I hooked up a test light and noticed when I hook it up the voltage goes from 12 to 0, it drops, and no illumination of light, I also noticed when I plug in the connector I'm testing, the ignition lock actuator, the voltage also goes from 12 to 0.... so under load voltage is going away???

If I take 12v from fuse box and connect to ignition solenoid the pin moves and I can remove key, so it is working, it's an issue with the control.

I'm not an expert and wiring seems solid, as well as continuity test on that line passing.

I'm so incredibly confused by this.

Anybody familiar with this issue and the wiring? Anything I should try. I know I can bypass it and maybe install my own switch to trigger the solenoid but I'd like to leave that as last resort.

 

[melsg5]

You need to find a wiring diagram to trace back the normal source of power to the lock cylinder solenoid.
You are sure all the wires you repaired are good splices?

 

[hunchy95]

You need to find a wiring diagram to trace back the normal source of power to the lock cylinder solenoid.
You are sure all the wires you repaired are good splices?

Thanks for the reply.
I did some more tests on the wiring. I ran a new wire without splices from the shifter connector to the ignition lock actuator connector, using t-pins and got same result, so that was interesting. Then finally I took the end at the ignition lock and connected that to 12v source and it clicked. So for whatever reason the correct 12v and amperage is not being sent from the shifter, and my test confirmed that the wiring/splices are ok. So something inside the shifter is messed up,

I think its a switch that closes when in park and send the 12v through that light blue wire, so maybe that switch is bad or wiring inside the shifter bad

Have no idea how I'd fix that without just replacing the whole shifter assembly, I don't see any parts listed online.

Are you familiar with that? Appreciate your help