I've been researching Corvette Forum for a couple nights to see if there are any threads related to my situation but couldn't find any, hence my post here. I have a 2018 Grand Sport with GT seats and purchased a set of used Competition Seats that came from a 2017 ZO6. When I went to install the new seats, much to my surprise the seat wiring harness receptacle was different on the 2017 seat. I've attached a pic of the two seats side by side. After some internet research, I learned that Corvette changed the wiring harness receptable starting in 2018. So now I am left to figure out whats the path of least resistance to get the seats swapped. I can't find anything related to why GM changed the seat harness for 2018/2019 or whether everything else on the harness and its connections are identical. I did look for an adapter and Vetteworks makes a bunch of them to install C7 seats in older generations, but nothing to connect a 2014-2017 seat in a 2018-2019 car. Does anyone know anyone who has already done this swap?? With the exception of the receptacle connecting the seat to the car, is the rest of the harness identical so that it would just be a matter of swapping the harnesses in the 2017 and 2018 seats?



Thanks in advance!

 

If you can get the right tools I wouldn't swap the harness.

Get the pinout of each, if the new harness has the same wires as the old one, buy (or swap) the connectors. You can "depin" a connector with the right tool (the pins/terminals all come out the back. If the terminal/pin size is the same you can then just re-seat them in the other connector housing. If you need to swap pins or terminals you can cut off the old ones and crimp on new ones, but this is limited by the wiring length and might be easier to buy a "pig tail" and then cut off the old connector and solder each wire.

 

Thank you for the info. I started looking at how to take the wiring harness out and there is no clearance around the frame to pull the connectors through to weave the harness out of the seat. It looks like you'd have to take the bottom seat cushion out and I don't want to start ripping apart the seats. I don't know if the wiring of the connectors is identical, but there are wiring diagrams online for each connector that I'll start researching. Thanks again.