P0700 and P2714 Fault Codes on 2021 Chevrolet Silverado 1500 with 8L90 Transmission and Next-Gen Damper Delete Kit

Model: 2021 Chevrolet Silverado 1500 Fault Code: P0700 Posted: 2025-08-27 20:20

I recently installed a next-gen damper delete plate on my 2021 Chevrolet Silverado 1500 with the 8L90 transmission, but now the vehicle is displaying fault codes P0700 (Transmission Control System Malfunction) and P2714 (Solenoid D Circuit Issue). I have confirmed that all solenoid connectors were properly connected during installation. Does anyone else experience similar issues after installing this modification? Any insights into potential causes or troubleshooting steps would be greatly appreciated.