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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Proper code clearing procedure with Bav Tech Tool



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      09-01-2009, 10:19 AM   #1
Angry3
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Proper code clearing procedure with Bav Tech Tool

Helping a buddy deal with as issue on his 335 and we had some trouble getting codes cleared. The directions are very specific about the order things have to be done to get running, but not about what happens after you hit the clear all codes icon.

When starting, we went:

Turn computer on
Insert cable into USB
Insert cable into ODB port
Turn ignition on
Open BT Program
Run module tests, short test, clear codes, etc.

So at this point, what's the right way to back out of everything? Do you kill the BT program or the ignition first? We must have done something wrong, as all of the codes were still there when we ran back through to check them.

Sorry for what's probably a dumb question, but I'm completely new to this stuff. Thx for any replies.
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      09-01-2009, 10:32 AM   #2
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Quote:
Originally Posted by Angry3 View Post
Helping a buddy deal with as issue on his 335 and we had some trouble getting codes cleared. The directions are very specific about the order things have to be done to get running, but not about what happens after you hit the clear all codes icon.

When starting, we went:

Turn computer on
Insert cable into USB
Insert cable into ODB port
Turn ignition on
Open BT Program
Run module tests, short test, clear codes, etc.

So at this point, what's the right way to back out of everything? Do you kill the BT program or the ignition first? We must have done something wrong, as all of the codes were still there when we ran back through to check them.

Sorry for what's probably a dumb question, but I'm completely new to this stuff. Thx for any replies.
I usually just exit the BT program first, then unplug the cable, then turn off the car.
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      09-01-2009, 10:45 AM   #3
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The codes might be valid and reoccurring, too.
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      09-03-2009, 05:25 PM   #4
Angry3
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Thanks guys, I'll try shutting the BT program down and see if that helps. The codes are present on an immediate rescan, so it's not like they're recurring.


I appreciate all of the help.
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