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post #2 of (permalink) Old 18th June 2007
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The official answer should be no. The UCH , ECU and steering lock must all have matching serial numbers. These numbers are programmed into a write-once memory, so once they've been written with one serial number, it can never be changed.

Once 'paired' in this way, the units can only be taught new keycards. Maybe this is what some of the dealers are referring to when they say that they can be partially reprogrammed.

The only way to get the UCH from a scrap car to work is to lift all of the other paired components too and transplant the lot. If the donor car doesn't have the same engine, then obviously this is a non-starter because the ECU won't be right.

But we've had one member who managed to dismantle his broken steering lock and transplant the working parts from a scrap one into it while still maintaining the original electronics and therefore the serial number. If your UCH isn't that badly damaged, then maybe this is an option. As it stands, I don't think you have much to lose.
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