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Thread: ECM dead after trying to write

  1. #1
    Potential Tuner
    Join Date
    Feb 2019
    Posts
    4

    ECM dead after trying to write

    Was working on a 2003 chevy silverado 5.3 today.

    When writing the ecm it stopped when it was almost done and now it is completly dead .

    Ican't conect ,read or do anything with it.

    How can i solve this problem?

    The battery was fully charged and i had a 100 amp charger on it , so that cant be the problem.

    Hope anyone can help.

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Was it a write entire or write calibration?

    Do you have anything aftermarket installed, like a radio or alarm system?

    If you do, take the fuses out. You may be able to recover it if it was a write calibration.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.