This is where you’ll find codes specifically for your Toyota. Toyota has been around since 1937 and is a very popular and renowned brand Founded in Japan and now sold worldwide. Some of their most popular makes are the Camry, Corolla, Rav4, Highlander, and Tacoma. In this section, we will cover the most common trouble codes for Toyotas, and explain what they mean, the symptoms, the cause, the severity, and we will walk you through basic diagnostic steps. If the issue that you are having is not covered in this section, see our other DTC categories for general codes and issues.