In most cases, communication issues can be caused by various reasons including: ignition-key position, connector-voltage issues, incorrect communication protocol, hung ECM, missing or bad data, and OEM-updated ECM software that is unknown to the scan tool.

OBD connector location for Honda Civic 10 (2016 – …)

1. The OBD II socket is located above the pedals.
2. The OBD II port is visible on the top left of the pedals.
3. Here is the OBD II port.

The most common cause of an OBD scanner that won’t turn on is a blown fuse on the vehicle’s OBD socket power supply circuit. If the check engine light fails to aluminate, you ca be sure the fuse has blown. Checking the vehicle’s fuse box and replacing the blown fuse fixes the issue.

With a multimeter set to “ohms” check the resistance between these two terminals (the ignition must be in the off position / key removed) as shown. If there is 60 ohms (+/- 2 ohms) your vehicle is equipped with CAN communication and the gaugeART CAN OBD Link is compatible with your vehicle.

1. OBD1 is connected to the console of a car, while OBD2 is remotely connected to the vehicle. 2. OBD1 was used during the earlier years of the car manufacturing industry, while OBD2 was only introduced in car models produced in the early 1990’s.

On-Board Diagnostic II

• 1996 or newer model year vehicle sold in the United States. United States legislation requires all cars and light trucks model year (MY) 1996 and newer to be OBD-II compliant.
• 2001 or newer model year gasoline vehicle sold in the European Union.
• 2004 or newer model year diesel vehicle sold in the European Union.

What problems does the OBD system detect?

• Fuel Systems.
• Engine Misfires.
• Emissions Control Systems.
• Vehicle/Speed Idling Controls.
• Computer Systems.
• Transmission Systems.
• Others related to vehicle body & chassis etc such as Seat-belt, Airbags etc.

The OBD-II port is usually located under the dashboard, beneath the steering wheel column (1 – 3 in the diagram below).