The OBD2 port on your 2010 Toyota Prius is a crucial interface for diagnosing and troubleshooting vehicle issues. Understanding its pinout, or the function of each pin, is essential for effective repairs. This article provides a comprehensive guide to the 2010 Toyota Prius Obd2 Port Pins, including their location, a detailed diagram, common damage issues, and repair advice.
Locating the OBD2 Port on a 2010 Toyota Prius
The OBD2 port in a 2010 Toyota Prius is typically located under the driver’s side dashboard, near the steering column. It’s a trapezoidal, female connector with 16 pins.
2010 Toyota Prius OBD2 Port Pinout Diagram
The following table outlines the function of each pin in the 2010 Toyota Prius OBD2 port:
| Pin Number | Function |
|---|---|
| 1 | Manufacturer’s Choice |
| 2 | SAE J1850 (Network) |
| 3 | Manufacturer’s Choice |
| 4 | Chassis Ground |
| 5 | Signal Ground |
| 6 | CAN Bus High (Network) |
| 7 | ISO9140 K-Line (Network) |
| 8 | Manufacturer’s Choice |
| 9 | Manufacturer’s Choice |
| 10 | SAE J1850 (Network) |
| 11 | Manufacturer’s Choice |
| 12 | Manufacturer’s Choice |
| 13 | Manufacturer’s Choice |
| 14 | CAN Bus Low (Network) |
| 15 | ISO9140 K-Line (Network) |
| 16 | Battery Positive (Key Off Power) |
Common OBD2 Port Damage and Repair
Pin 16, the battery positive pin, is the most susceptible to damage. This often occurs due to improper use of test probes, faulty aftermarket accessories drawing excessive current, or blown fuses.
While generic replacement OBD2 connectors are available, their quality is often subpar. The terminals may be made of soft metal that doesn’t hold its shape, leading to poor connections and potential future problems.
For a lasting repair, using OEM parts from Toyota is recommended. While not directly listed in the parts catalog, the connector housing can be found on Toyota’s TIS website using the electrical wiring diagram. The part number for the connector housing is often 90980-11665. Terminals may be available under part number 82998-05010, although this can vary depending on the specific application.
Connector Experts is a reputable supplier of high-quality reproduction OE connectors and terminals, offering a cost-effective alternative to OEM parts. Their TERM86 terminal is often a suitable replacement for the 2010 Prius. When replacing terminals, using a high-quality crimping tool designed for small open-barrel terminals is crucial for ensuring a secure and reliable connection.
Conclusion
Understanding the 2010 Toyota Prius OBD2 port pins is essential for accurate diagnostics and repairs. Utilizing quality parts and the correct tools will ensure a long-lasting fix. Consult reputable resources like Toyota’s TIS website and trusted parts suppliers for specific part numbers and detailed information.
