JEGS factory-color GM wiring diagrams will equip you to re-wire or trace down an electrical issue, taking the guesswork out of your restoration project.. Use these extra terminals to run wires through the firewall using the male and female bulkhead connectors on the harness. See below for instructions on how to use these terminals. The terminals we have provided you are designed for wire gauges 18-14.
GM's TCU, computer software and wiring harness enable the transmission to operate. The TCU is fully programmable; part throttle, Wide Open Throttle (WOT), shift firmness and speeds can be custom tailored to the application.. Factory Color-Coded Wiring Schematics for Your GM Vehicle JEGS factory-color wiring diagrams will equip you to re-wire or trace down an electrical issue, taking the guesswork out of your restoration project.