I think my cousin indicated in post #1 that the remote lock still works, and has always worked, with the original key. He indicated the replacement key from the dealer didn't work which might be caused by the new key not being synched to the car?

Since we can swap the DAS, engine ECM and transponder ring from the original car to the parts car and get them to work it seems like the problem would have to be a wiring, connector or power issue in the original car.

Does the DAS unit coordinate/originate the remote lock/unlock activity?

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