Step 1 - Press the reset button.
Step 2 - Verify the correct port was used (OBD-II). Some vehicles have diagnostic ports that look very similar to the OBD-II port, but are not tapered on the sides. Refer to the included instructions or our installation tool for a photo of the OBD-II port
Step 3 - Verify the tap-in connectors were installed properly. Failure to crimp the connectors all the way down will result in a poor connection. DO NOT push wires into the OBD-II port, as this will cause a short.
Step 4 - Using a volt meter or continuity tester, verify pin 4 is grounded.
Step 5 - Using a volt meter or continuity tester, verify pin 16 is 4.6VDC+ to 15VDC+ when key is turned to IGN position. If not, check fuses.