Security Gateway Module Bypa Cable Parts Cable Module Compatible with 2018 - 2021 Ram Pickup Product Description The bypa cable will also likely be needed in the following scenarios: Changing the tire size with EZ LYNK Adding an aftermarket remote start Using a Snap-on or other OBDII scanner Adding AMP Steps Alpha OBD Elm Support Efi Live Support 2018 / 2019 / 2020 / 2021 Cummins Bypa Cable Installation For Our 2 - Wires Design only Remove the cable from package. Purple Pin 6 Grey Pin 14 Carefully, remove the OBDII connector from the dash by depreing the tabs on the sides. Remove the two grey pin retainers from the back of the connector.O ne at a time, remove & replace the yellow and brown wires from locations 6 & 14. For a 2018 truck, For the 2019 and 2020 follow the same steps. N OTE: If you install the cable and cant connect to the truck, try swapping the wires. Reinstall the two grey pin retainers. Locate the green Star connector above the parking brake. For 2018 plug the harne into any empty space, for 2019 and 2020 plug the harne into the fifth position from the left at the bottom. Cover & insulate the pins you removed from the OBDII connector. Reinstall the OBDII connector into the factory location. If you want EFI-LIVE on your 2018 + Ram Pickup Or any other Tuning platform and need to Bypa The Security Gateway you need this harne!