2014 GMC Sierra 5.3 error msg
2014 GMC Sierra 5.3 error msg
When the Trinity completed writing the PCM it returned a message: “ Unable to write one unit” ! I attempted to write 2 more times but it returned same mrssage. I drove it like that with no issues. Do I have to worry? Should I program the OEM backup to the PCM. Is there a fix?
- mikel
- Posts: 57802
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2014 GMC Sierra 5.3 error msg
seems its skipping the tcm, try going back to stock then retune.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
Re: 2014 GMC Sierra 5.3 error msg
I skipped TCM ! Is it possible the Trinity doesnt recognize I skipped tranny ? I already did all of the troubleshooting like updated Trinity and made sure latest file. I tried 3 x to program the truck. What I will try is Inwill choose an option for the tranny (tcm) and see what happens.
- mikel
- Posts: 57802
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2014 GMC Sierra 5.3 error msg
so you are skipping the trans on purpose? If so its not crazy for it to tell yo it didnt program one of the modules at the end
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com