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Just bought 996tt, disconnected battery and now radio codes don’t work

Old 04-28-2018, 08:27 PM
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Ebox86
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Default Just bought 996tt, disconnected battery and now radio codes don’t work

hi, I have an 2001 996tt with the PCM and I disconnected the battery, but upon reconnecting power, the radio codes in the book don’t work.

Went to local Porsche dealer, they gave me codes of what showed in the system, but those aren’t being accepted by the pcm unit.

What other codes could the unit be looking for and how do I fix this?

thanks
-evan

Serial number: BE2582Y5007982
Old 04-30-2018, 12:21 AM
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dan_189
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The radio might have been changed and as such the old codes don't work, beyond that not quite sure.

Do you have any documentation that the radio might have been changed?
Old 04-30-2018, 02:52 AM
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Ebox86
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No i don't have any documentation that the unit was replaced, but thats the only thing that makes the most sense.

I have the serial, but i think i will call becker tomorrow to see if they can lookup the code based on the serial.

thanks
-evan
Old 04-30-2018, 02:56 AM
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Good plan, keep us posted
Old 04-30-2018, 11:41 AM
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You might try pulling the radio. I had the same problem with mine and found that the previous owner had written the code on the top of the radio. He had also hand written it in the book and on the build sticker in the trunk.
Old 04-30-2018, 07:51 PM
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I have already pulled the unit, several times, to verify that the serial number written in the book is the one that corresponds to that of the unit itself. Amazingly, there doesn't seem to be an easy way to simply decode the passcode based on the serial number. However, my local dealer just emailed back and said that they can contact porsche directly to have them release the code info. So we'll see where that goes.


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