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Old 01-23-2007, 11:23 PM   #4
Tea cups
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Member#: 103136
Join Date: Dec 2005
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05+ DBW ecus have an immobilizer feature which is for theft prevention. It transmits from the key to a module in the dash which also communicates with the ecu. If you place a different ecu in the car, the immobilizer will detect the mismatch and prevent the vehicle from starting. Only a dealer can reprogram a different ecu to work with the immobilzer module and corresponding keys.
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