Duramax Diesels Forum Truck of the Week
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Old 09-20-2019, 08:43 PM
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Default LML A50 Crapped Out Mid Flash

Was flashing the updated trans tune into buddies ‘13 LML and part way through it crapped out. Now it just shows 0’s for the VIN and won’t take a flash. Any way to recover it or is he buying a new TCM?
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Old 09-20-2019, 10:41 PM
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Have you seen this thread? Is it relevant to your situation?

https://forum.efilive.com/showthread...d-TCM-versions
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Old 09-21-2019, 01:41 AM
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Dealer can recover it, I went thru this with my 15 a few times. Have tuner check over tunes and try again...
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Old 09-21-2019, 08:59 AM
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Quote:
Originally Posted by 2004LB7 View Post
Have you seen this thread? Is it relevant to your situation?

https://forum.efilive.com/showthread...d-TCM-versions


It might be if I knew what sps meant lol.
Might try the dealer option.
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Old 09-21-2019, 09:17 AM
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Quote:
Originally Posted by LBZ View Post
It might be if I knew what sps meant lol.
Might try the dealer option.
SPS = Service Programming System. Pretty sure this is what the GM dealers use to flash ECMs/TCMs.
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Old 09-26-2019, 08:34 AM
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Buddy hauled it to the dealer and left $600 lighter. They couldn’t recover the TCM and he had to buy a new one. Lame.
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