*Unable to turn ignition key*
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From: H-Town/Cypress
*Unable to turn ignition key* I go out to start my car at work today and the key/ignition cylinder will not turn at all 
I have read up 'Column Lock' issues and have not seen this issue described in the symptoms. Am I possibly dealing with a BCM issue when the key will not even turn to ACC or ON? For grins I did pull the battery and put it on charger they have for the vehicles here at work, no dice. Could these be caused by a low voltage issue?
Thank you for the suggestions...
David
I have read up 'Column Lock' issues and have not seen this issue described in the symptoms. Am I possibly dealing with a BCM issue when the key will not even turn to ACC or ON? For grins I did pull the battery and put it on charger they have for the vehicles here at work, no dice. Could these be caused by a low voltage issue? Thank you for the suggestions...
David
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From: H-Town/Cypress
LOL guys...I think the tumbler is stuck in the ignition cylinder...FYI this is not an F-body, it's an 03 Z06. I should have mentioned that in my first post. The ignition is in the dash/console, not on the steering column. I have the ignition cylinder and electronics out of the car at this point, taking to a locksmith...
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From: H-Town/Cypress
I got the cylinder turning and cleaned the contacts inside the ignition switch. No dice on the car firing..However; with the cylinder now turning to ACC/ON, I can get DTC codes. The BCM is throwing a B 2723 HC code, which appears to be pass key related. I am about to just replace the cylinder and possibly the ignition switch as well.
I got the cylinder turning and cleaned the contacts inside the ignition switch. No dice on the car firing..However; with the cylinder now turning to ACC/ON, I can get DTC codes. The BCM is throwing a B 2723 HC code, which appears to be pass key related. I am about to just replace the cylinder and possibly the ignition switch as well.
-Ernie
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I found the issue...one of the sensors inside the ignition cylinder that measures the resistance of the VAT's pellet in the key is gone! I am guessing pieces of it ended up in the cylinder itself causing it to lock the cylinder briefly. I just need to buy a new lock cylinder for the ignition and find a locksmith willing to program the new key, or re-key the new cylinder to my old key...
