trinity not saving original backup

[kojack]

I have a 2002 5.3 silverado just got my trinity in updated it, plugged it in and it won't save original backup. Gives this error PCM: error prepare read (-1). Any ideas on why this is happening the truck is stock as far as I know.

[kojack]

Also I did some reading here on the forums and found similar problems and the solution being to unplug anything aftermarket from the vehicle. I unplugged my stereo and amp still no luck. I have LED aftermarket taillights, corner lights and HID headlights could this be something else causing the problem?

[mikel]

anything thats tied into the stock harness can be an issue...

[JoshHunt]

I am having the exact same problem with my 02 gmc Sierra 1500 with a 5.3, I have a clarion sterio deck, wired for subs but there is non in it, I have halo headlights and after market tale lights also that the previous owner put in, I put a k&n intake and poweraid throttle body spacer in, as far as I know everything else is stock

[kojack]

I hadn't messed with my trinity since April, woke up this morning decided to download the latest update tried it out and it worked perfectly.

[mikel]

good to hear.

[mikel]

I am having the exact same problem with my 02 gmc Sierra 1500 with a 5.3, I have a clarion sterio deck, wired for subs but there is non in it, I have halo headlights and after market tale lights also that the previous owner put in, I put a k&n intake and poweraid throttle body spacer in, as far as I know everything else is stock

disconnect the aftermarket harness thats being used to connect the stereo to the trucks harness...