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Showing results for tags 'ebcm'.
I have a mystery: I get the ABS and Brake Light error warning lights ONLY DURING REGEN. The speedo, all gauges and the brakes work fine. The lights go out after restarting, but will come back if regen is still happening. I can pull the following codes: C0055-0f invalid data received from electronic brake control module - signal erratic U0100-7f lost communication with engine control module bus - signal erratic I've checked all the chassis grounds, battery grounds (all .3 or .4 ohms) and the condition of both batteries (both 12.7 volts after sitting over a week). I have replaced the vehicle speed sensor to no avail. I'd like to think that the EBCM is not bad since it works fine when there's no regen happening. However, I still need to check the ground to it's connector. And I am open to replacing it since it's only $130. So, here are my questions: Does anyone know the ground pin(s) of the EBCM connector? If I get the exact EBCM unit, does it have to be reprogrammed for a 100% stock truck? (stock wheels/tires) Does anyone have access to any dealer TSB for this condition or have any other insight? the truck: 2013 GMC 3500 Duramax, dually, crew cab, SLE, 4x4, only 25k miles, clean and pampered thanks in advance!
I have read so many posts, and messaged a few people across two forum sites; however I am still confused about a gear change on the 2014-2018 (mostly on the 2016+) trucks. I know the parts are available, and it is possible to change the physical gears. Where I can’t seem to find an answer is about reprogramming the various separate computers. If I understand it correctly, the available programmers can ONLY reprogram the ECM for tires and gears which only fixes the speedometer, and no one can reprogram the transmission, vvs unit, or the ebcm (abs), which is why some get the abs and brake codes after gear swaps despite reprogramming the ECM. I can’t help but believe this will also have a severe negative impact on the truck’s stabilitrak system, which I want to keep working properly. Is there anyone who HAS ACTUALLY swapped their gears AND reprogramed their trucks on this site? If so, what specific components (ECM, transmission, etc.) were reprogrammed? Does your truck have any error codes including the abs/brake lights/codes? What programmer was utilized for the programming? It also appears GM changed one of their computers for 2016+ trucks so access is limited and it’s harder to get into the computer for changes?