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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335D with possible JBD chip issue



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      12-31-2010, 11:25 AM   #1
Sailor737
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335D with possible JBD chip issue

First off, I absolutely love the chip so I don't want to deter anyone from not getting one because it transforms the 335d into even more of a beast! Ok so I installed the chip and turned it up to 100% and I didn't have any issues. I went out to Vegas for a few days and was just getting on the highway to head back to San Diego when all of a sudden while driving at a moderate speed two dash lights came on! The first is a orange "BRAKE" and the other one is a "!" inside of a triangle with a counterclockwise arrow around it. Both are orange and NOT flashing or anything. My cruise control stopped working as well. I called my local BMW dealership and they said it was an issue with the DTC or DSC. And that it was still fine to drive unless it was red but that they couldn't see me till mid January!
Could this have been caused by the chip? I bought the BT cable with it. Can I just delete the codes and continue driving? Recommendations and/or thoughts would be appreciated! Thanks in advance!
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      12-31-2010, 11:26 AM   #2
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why dont you share the codes with us?
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      12-31-2010, 12:33 PM   #3
Sailor737
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I'll post them later as soon as I get back home and can hook up the BT cable
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      12-31-2010, 12:35 PM   #4
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Those are DTC/DSC control module errors. Not related to the engine or tuning. Just remove mods and dealer it, probably needs a new wheel sensor, etc. If you're the kind of person scared by a light on the dash you should be running the JBD @ the default (code free) 65% setting.

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      12-31-2010, 01:02 PM   #5
Sailor737
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Thanks Mike! I'm not scared of a light on the dash, thats why i bought the BT cable along with it, it just happened that I was driving through black ice conditions on the highway when I was leaving Vegas and having DTC as a back up would have been nice.
When I attach the cable should I delete those codes or wait and let the dealership do it? What shadow codes should I look out for? I don't want to delete the wrong codes or leave ones on there. Thanks
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      12-31-2010, 01:16 PM   #6
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you should dyno the car see what number you get?

what is the base stock numbers on a 335d?
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      12-31-2010, 03:54 PM   #7
Mike@N54Tuning.com
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Quote:
Originally Posted by Sailor737 View Post
Thanks Mike! I'm not scared of a light on the dash, thats why i bought the BT cable along with it, it just happened that I was driving through black ice conditions on the highway when I was leaving Vegas and having DTC as a back up would have been nice.
When I attach the cable should I delete those codes or wait and let the dealership do it? What shadow codes should I look out for? I don't want to delete the wrong codes or leave ones on there. Thanks
Just scan and clear anything in the DME section as those are engine related codes. The DTC/DSC codes are in another module called dynamic stability control. Leave those all in!

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