PCM Lockout Can Dealership do this?
Race Director
Joined: Nov 2003
Posts: 12,346
Likes: 5
From: Mustang OK
Originally Posted by David426
I was wondering if the Dealership can lockout your PCM so that a reprogam with a handheld unit cannot be done
Race Director
Joined: Oct 2002
Posts: 16,477
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From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Lock it out? I don't think so.
Make changes so your existing tuner or tuning program no longer works? Yes.
A little more context as to why you're asking the question may give you a more exact answer.
Make changes so your existing tuner or tuning program no longer works? Yes.
A little more context as to why you're asking the question may give you a more exact answer.
Tech Contributor
Joined: Oct 1999
Posts: 41,063
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From: Charlotte, NC (formerly Endicott, NY)
When you reprogram your PCM you basically swap the stock program for the custom program. When you are done loading the custom program the stock program is stored in the programmer. If you take the car in for maintenance and they check for any available software updates they could load an updated stock program right over your custom program. Then you have no more custom program since the programmer only has a back level version of the stock program.
You could sort of say you are locked out but its more like getting the shaft.
Bill
You could sort of say you are locked out but its more like getting the shaft.
Bill
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I've not heard of them being able to do this. The PCM is set up to where it can be updated as needed.
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