Yes, the tear tag is a 4 digit identifier of the PCM. If you see it change from DAA to a 4 digit number/letter combination, it basically means a PCM has been assigned to your vehicle. The tear tag has all the basic engine and emissions information of the vehicle.Perhaps I missed something. Does the tear tag change once it is actually being made? Mine shows DAA- no modules. I’m assuming it doesn’t really mean anything at this point.
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