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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-07-2009, 03:41 PM   #1
lowrider
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|| Confusing Problem When Interfacing Through OBDII ||

So today I drove down to EAS, who continually amaze me in customer service, and we tried to reflash my car's computer so that I could roll up the windows from the key.

Tom, plugged his USA/Euro car programmer into my OBDII plug and was able to read a couple fault codes and clear those, but was not able to access my car's computer. An error came up for every type of interface he tried. For some reason my car's computer is not letting him in to change certain things, although it should let him in.

The only I've changed recently is the installation of a Double Din head unit (AVIC F90bt) but I don't really see how that could be related.

Any help on this matter would be greatly appreciated!!!

TIA
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Old 04-14-2009, 12:28 AM   #2
lowrider
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nobody? Really wish I could get this figured out.
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Old 04-14-2009, 11:55 AM   #3
NickG@TechniqueTuning
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Did you try through the 20-pin underhood connector?

Also, if the 20-pin connector hood is missing or unscrewed, the OBD2 plug under the dash will not communicate with the ECU.
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Old 04-14-2009, 01:14 PM   #4
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NickG for president!
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Old 04-14-2009, 11:17 PM   #5
lowrider
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Quote:
Originally Posted by NickG@TechniqueTuning View Post
Did you try through the 20-pin underhood connector?

Also, if the 20-pin connector hood is missing or unscrewed, the OBD2 plug under the dash will not communicate with the ECU.
Thanks, I'll look into it. It is possible that the 20 pin plug could be loose. Tom didnt seem to have the interface for the 20 pin, only the OBDII, I could be wrong though.

Thanks for your help! And I'll vote for you when you run for president!
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