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Boost
November 2nd, 2016, 08:56 AM
My #150th

2016 Malibu Limited

After ECM tuning has theft light

B101E security code not programmed

Even back to stock with GM dealer toys :( still same light

Please help

Do I need a new ECM

GMPX
November 2nd, 2016, 09:13 AM
Which ECM type is that model using?
It is not an issue I have heard of before.

Boost
November 2nd, 2016, 09:27 AM
E39a

GMPX
November 2nd, 2016, 09:39 AM
Anything out of the ordinary with tuning it? Was it locked after tuning?

Boost
November 2nd, 2016, 09:40 AM
No it was and is fine except for the code and associated light after tuning first time with EFILive.

GMPX
November 2nd, 2016, 10:13 AM
Have you done that specific model before?
If you have the GM tools then maybe try a theft relearn.

Boost
November 2nd, 2016, 07:27 PM
Will do that in a couple hours. Hope it will help as the BCM is setting a code saying security code not programmed in ECM. First time with this particular model but it was just a simple Calibration Flash that caused it. Even tried full flashing after to no avail.

Boost
November 2nd, 2016, 11:47 PM
Currently doing immobilizer learn at a dealer this moment

Update: seems to have fixed it. Thank you for the attention and helping me out with this Ross. I will report later to confirm it's still good

Boost
November 3rd, 2016, 10:35 AM
Yup works great :)

GMPX
November 3rd, 2016, 12:25 PM
Thanks, still very odd that it lost that data after a flash. That area of the ECM is never modified during a reflash.