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      12-06-2018, 07:10 PM   #1
Timaeus
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08 E90 328i SOS Malfunction Light

I recently installed an aftermarket headunit. Shortly after I started receiving the SOS light on the dash, so I followed another thread on how to turn it off. However, when I try to read the TCU in NCSExpert I get an error message and am unable to proceed. I'm at a loss. Thanks!
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      12-06-2018, 10:39 PM   #2
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when you removed bmw headunit you disconnected tcu unit connected via MOST bus to car
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      12-07-2018, 09:40 AM   #3
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Quote:
Originally Posted by Timaeus View Post
I recently installed an aftermarket headunit. Shortly after I started receiving the SOS light on the dash, so I followed another thread on how to turn it off. However, when I try to read the TCU in NCSExpert I get an error message and am unable to proceed. I'm at a loss. Thanks!
Code out the TCM_***** values in KOMBI, then you're all set.
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      12-07-2018, 03:51 PM   #4
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Thank guys! I wound up plugging in the oe headunit and I got it working... Coded everything out, then swapped back. I'm all set! Thanks I really appreciate it.
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