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PCM:error unlock for refresh (-1)
Posted: Tue Jun 28, 2016 7:38 pm
by SeaRay45db
Trying to remove the Diabolo Build and put the back up on. Had no problems putting it on, but cannot take if off. Nothing has changed. No auto start or anything like that.
Suggestions?
Thanks
2004 Chevy Suburban 5.3 1500
Re: PCM:error unlock for refresh (-1)
Posted: Wed Jun 29, 2016 11:36 am
by mikel
aftermarket stereo?
Re: PCM:error unlock for refresh (-1)
Posted: Wed Jun 29, 2016 6:21 pm
by SeaRay45db
Yes, no lock on it.
Re: PCM:error unlock for refresh (-1)
Posted: Thu Jun 30, 2016 10:56 am
by 06MonteSS
you need to make sure anything aftermarket is disconnected/pull the fuse for - anything like aftermarket stereo, subs, amps, nav, alarm, remote start, seat heaters, trailer brake/light setup, etc.. anything like that, their wiring harnesses need to be disconnected/pull the fuses for it before you try to tune anything...
also make sure everything is turned off inside the truck.. lights, radio, heat/fan/blower, do not operate power windows, put your parking brake on, etc...