READ ALL INSTRUCTIONS BEFORE INSTALLING

1. Remove the plastic bezel that surrounds your tailgate handle. Use the tips of your fingers at the top of the bezel and then the bottom to pull it off.
2. Release lock rods at handle assembly by unlatching plastic retainers.
3. Remove the 3 screws on the back side of the tailgate with a Torx 40 socket.
4. Extract the handle from the tailgate. 
5. Insert the short harness with the 2 bullet plugs into the drain hole at the bottom of the tailgate. The end with the waterproof connector should run behind the bumper and under the truck. Push the harness with the 2 bullet  plugs into the tailgate until it can be pulled through to the handle opening.
6. Using an appropriate work surface, set the factory handle on top of the DynoLock bracket, align the 3 holes then insert at least two of the bolts. Now move the actuator piston to see if the Dynolock pin moves freely under the lip of the handle. You will have to hold the lip up. The lock rods will hold it up when installed. If everything lines up OK, remove the bolts and prepare to insert the lock and handle back into the tailgate.
7. The DynoLock and handle will have to be inserted back into the tailgate at the same time. Ultimately, the DynoLock bracket will be sandwiched between the factory handle and the back skin of the tailgate. Our suggestion is to slide both pieces in together and the get on bolt threaded through the hole into the factory bracket. Then line up the rest of the holes, insert the remaining two bolts and tighten.
8. Make sure the DynoLock locking pin moves back and forth freely. Connect wires from harness to DynoLock
9. Reconnect the threaded lock rods by snapping retainer into place.
10. Connect the long harness to the short harness installed in the tailgate by pressing the 2 pin waterproof connector together.
11. Run the harness under the vehicle as close to the driver's side kick panel as possible. Use the tie wrap to secure the harness to the frame. Be sure to avoid moving or hot parts under the vehicle, i.e. shocks, springs or muffler pipes.
12. Drill a 7/16” hole in the floor under the driver door trim plate and insert the grommet. Run the wire through grommet.
13. Remove left driver's side kick panel to allow the wires to be fished into the fuse block area. Open the fuse box cover on the left side of the dash (see diagram #2). Locate the brown plug on the bottom left of fuse block. Locate tan wire (unlock) position #1 and the gray wire ( lock) position #7.
14. Attach the 2 blue wire taps to each wire. Wrap the wire tap around each wire and squeeze close with pliers. Push the 2 pink male spade connectors attached to the end of the harness into the blue taps.
15. Lock the doors using the driver's side door lock switch. If the tailgate locks and the doors unlock at the same time, reverse the wires. Replace the kick panel and the installation is complete.

You can test output of #1 & #2 with a test light. Ground end of testlight to bare metal.Touch probe to #1 & push lock button and light should pulse on. Repeat with #7 for unlock.