View Full Version : FAILED RE-FLASH p10

December 23rd, 2010, 06:04 AM
UPDATE--Anyone having failed re-flashes on Trailbazers, Colorados or any
IL6 application where the re-flash stops about 1/3 of the way and then locks up--Car then won't start and is completly dead
I had had a friend with a TECH II read the ECM and it says to unplug the following fuses:
Under the rear drivers seat fuse box--- # 6 and # 51--
#6 is for the brake light and # 51 says LGM/DSM ( don't know what that actually is)
Unlike most GM applications where the radio---amp---accessory--- Bose---aux. or Info fuses are pulled----Have no idea why #6 and #51 are correct but must have some hidden reason why it interupts communication
YES--flash worked and tune successfully downloaded !!! 99.99% the ECM is not fried and the tune can be re-covered---

December 23rd, 2010, 10:44 AM
Try with V8 before you bother pulling any fuses, I couldnt flash my P10 with V7.5 but fired up V8 and it recovered the calibration and flashed perfectly without touching any fuses.