Troubleshooting SuperChips Flashpaq on 2008 Chevy Tahoe Sending Communication Error Message

Published 04/10/2020

Question:

Hello I bought a flashcal for my 2008 tahoe ltz 5.3 I hooked it up yesterday for the first time and I got communication error. Not sure how to make it work. Factory stereo and aftermarket remote starter installed on the truck Thanks

asked by: Jason D

Expert Reply:

I have seen this sometimes happen with the SuperChips Flashpaq like your # SU2845 on trucks that have a remote start or aftermarket stereo installed. You'll want to check the wires going back to the OBD-II port to see if there is anything spliced into the purple wire. If there is, go ahead and remove it.

If that doesn't work, also see if it sounds like the door chime is coming from behind the stereo in the dash, instead of the door speakers. If it is, you will want to pull the stereo out and disconnect the chime box - which is just a small speaker. Doing this should allow the tuner to communicate with the truck and you should be good to go.

Just let me know if you the issue still persists and I will be happy to look into this further.

expert reply by: Erik B