Diagram wiring switch external transmission neutral chevy harness safety speed schematic sensor solenoid electrical connector plug shift 2003 circuit code Tcc swap solenoid relay 4l80 setup os disable otherwise properly function don will not 4l60e neutral safety switch wiring
4L80 swap TCC relay setup
Diagram wiring rebuilt 1994 just chevy reply
Problems with 4l60e to 4l80e swap using relay method
4l80 swap tcc relay setupRelay swap method problems using performancetrucks forums Easier 4l80e swap, need tcm ids.
.