Steering wheel column locked

So I think we should have a code in the system because this system is electronically controlled. See the highlighted portion.

If there is something preventing the lock from disengaging it should set a code to tell us what it is. If not, then we appear to have a control module issue which would be the REM, GEM, and cluster. Hopefully we have a code to point us to the correct system.

Let me know and we can go from there.

Okay. So if you look at the wiring diagrams you replaced the steering column lock module. You also said you replaced the front ECM. Do you mean the General Electronic Control Module?

The way this works is when you put the key in the ignition, the SCLM (see attached) tries to unlock the column. However, it needs to communicate with the GEM and REM in order to know that it is okay to release the lock. So if the wheel is turning freely then the SCLM is actually releasing it. That means we need to figure out why the cluster is just saying that.

When you say the lock module has no power, where did you measure this? Which wire were you checking and were you using a test light or a voltmeter?

If the column lock is actually working then I suspect something is telling the cluster to display that.

The other option that we have as to what is happening is the clock spring has an issue sending the signal to the lock module and so the locking pin is disengaged.

Okay. I don't suspect you have an issue with the clock spring itself but instead the GECM or the RECM. The way I read this, they are part of the control system. So is that correct that the wheel turns but the cluster is the only thing pointing us towards the lock module? And this is preventing the vehicle from starting?

So maybe I am not understanding. This issue of the car not starting is still happening after you replaced the SLCM? I am not sure why you still have it out of the vehicle? Also, have you checked for codes with everything hooked up? Clearly we are missing something so we need to make sure we have covered all the bases.

Okay. The thing I fear is that this is a wiring issue. Can you hook everything back up but don't reassembly everything so you still have access to it. Then disconnect the battery for 10 minutes then reconnect it and retest? I am not thinking this will fix it but once we confirm the steering is locked, wiggle the harness at the SCLM? I am wondering if by wiggling the harness the lock will click. Clearly you need to have the key in the ignition so that it should release the lock.

If this doesn't do anything then I am going to suspect something is telling the SCLM to lock it. This would be the GECM or even the REM because they are what control the security system and locking system.

I doubt the water in the trunk will cause this unless you find it running over a harness. Then we can dig further into that.

Did you replaced the GECM or just hook everything back up?

Well that could change things. First step is we need to determine exactly what these parts are and try to identify everything that is corroded. Or just take them all apart and clean it or replace it and then retest.

This would make sense because it does seem like something is telling the SCLM to lock the steering rather than there being an issue with this system.

That is a great update. Thanks for the info. I am sure that will help others. Thanks