So, you've got your OBD diagnostic scanner in hand, and now you're wondering, “Where do I plug this thing in?” Or maybe you’re simply curious about your Toyota’s systems. Either way – we’ve got you covered.
Whether you need to troubleshoot diagnostic trouble code, check cruise control operation, or test fuel pump, finding your Toyota's OBD2 (also called OBD-II) port is simple task once you know where to look.
The OBD2 port is a standardized connector found in most vehicles since 1996, including Toyota. It lets a code reader communicate with the vehicle's onboard diagnostic system to access trouble codes, read live data from various sensors, and retrieve other important information.
This OBD2 port is trapezoid-shaped, has 16 holes for sockets, and is usually black, white, or purple. In most vehicles, you’ll find this port in a few common places:
Under the dash, above the pedals: This is the most common spot where you’ll find Toyota OBD ports.
Near the center console or below the multimedia: Some cars have the port closer to the middle of the car, usually beneath removable panels.
Inside or near the glove box: In some vehicles, the port might be inside or next to the glove box.
The image below highlights the most common OBD2 port locations:
Most common OBD2 port locations
Are all the OBD2 ports the same?
While all OBD2 diagnostic connectors may look similar, they're not the same. The OBD2 connector has 16 sockets, but only specific sockets are active depending on your vehicle's communication protocols. These protocols can vary by manufacturer, region, and model year.
Because of these differences, it is important to choose an OBD scanner that is compatible with your car. Although the connectors may look alike, the real differences lie in the hardware and software needed to properly read and interpret data from your vehicle's on-board diagnostic system.
For example, in 2008, Toyota switched to the CAN bus communication protocol. This means all 2008 and newer Toyota vehicles are compatible with OBD2 scanners that support CAN bus, such as OBDeleven diagnostic tool.
You can confirm if your car uses the CAN bus protocol by inspecting the OBD2 connector. If pins 6 and 14 are active, your car has the CAN bus.
OBD2 connector pinout diagram
Where is Toyota diagnostic port?
The location of the OBD2 port in your Toyota varies by model and year. Generally, you’ll find it under the dashboard.
Here's a quick guide with pictures showing where to find the OBD2 port in popular Toyota models:
The Toyota 4Runner OBD port location is under the driver’s side dashboard near the steering column. Look for a white connector just above the brake pedal on a metal plate.
The OBD port in a Toyota Aygo port location is under the driver's side dashboard, just above the pedals. Look for a white connector near the left side of the steering column.
The Toyota Avalon OBD port location is under the driver's side dashboard, just above the pedals. Look for a white connector under the steering column.
The Toyota Avensis OBD port location is under the driver's side dashboard near the steering column. Look for a connector just above the pedals.
The Toyota Camry OBD port location is under the driver's side dashboard. Look for a white connector on the right side just beneath the edge of the panel.
The OBD port in a Toyota Corolla sits on the driver’s left side near the hood release lever. A small cover labeled "OBD" hides the trapezoidal connector inside. Open the cover to access the port.
The Toyota Corolla Verso OBD port location is under the driver's side dashboard, just above the pedals. Look near the left side of the steering column for a white connector.
The Toyota Highlander OBD port is below the hood release lever on the driver’s left side. Look for a white connector.
The Toyota Avalon OBD port location is under the driver's side dashboard, above the pedals. Look for a white connector under the steering column.
The Toyota Yaris OBD port is below the hood release lever on the driver’s left side. Look for a white connector just beneath the edge of the panel.
The Toyota Prius OBD port location is under the driver's side dashboard. Look for a white connector on the right side just beneath the edge of the panel.
The Toyota Rav4 OBD port is below the hood release lever on the driver’s left side. Look for a white connector just beneath the edge of the panel.
The Toyota Rav4 OBD port is below the hood release lever on the driver’s left side. Look for a white connector just beneath the edge of the panel.
The Toyota Sienna OBD port location is under the driver's side dashboard, above the pedals. Look for a white connector just beneath the edge of the panel.
The Toyota Sienna OBD port location is under the driver's side dashboard, just above the pedals. Look for a white connector under the steering column.
The Toyota Sienna OBD port is below the hood release lever on the driver’s left side. Look for a white connector just beneath the edge of the panel.
The Toyota Tacoma OBD port location is under the driver's side dashboard. Look for a white connector on the left side, just above the parking brake pedal.
The Toyota Tundra OBD port location is under the driver’s side dashboard near the steering column. Look for a white connector just above the brake pedal, just beneath the edge of the panel.
The Toyota Highlander OBD port is near the hood release lever on the driver’s left side. Look for a white connector.
The Toyota Verso OBD location is near the hood release lever on the driver's left side. Look for a white connector just below where the panel ends.
