IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

master key not working?

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Old 03-07-09, 08:50 PM
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dedott21
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Default master key not working?

can anyone help me find the thread to reset my master key to my car? after replacing the battery in the key,the doors and the trunk will not operate at all!.it would be very helpful to me!
Old 03-07-09, 09:33 PM
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O. L. T.
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Replacing the battery will not re-key the door lock ECU. You need to check the battery to make sure it is not faulty and your connection is good to the battery and the battery is in the correct way.
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