Yeah sounds like it needs chains and guides done.
Would like to see measuring blocks to confirm.
The other faults need to know if they are static or intermittent.
But steering column lock need to replace that or it will leave you unable to drive.
Alarm horn likely battery has failed and leaked onto the board. Not a big deal can disable it in coding.
Incorrect immobilizer key is related to the steering column lock. See above.
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