Toyota Avalon Fault Codes

About the Avalon

The Avalon was first released in 1994 as the Japanese manufacturer’s flagship sedan for the American market. Since its release, there have been five generations to hit the market. The fifth generation made its debut in 2018.

Despite being sold primarily in North America, the model was discontinued in the United States in 2022. Other countries in which it is sold are Canada, China, South Korea, and various places in the Middle East.

Competition for the Avalon has typically come from American rivals. The most notable of these include the Chrysler 300 and Dodge Charger. In addition to these, the Nissan Maxima and Lexus ES are also competitors.

Despite Toyota being known for reliability, the model does suffer a few common fault codes. The most commonly searched of these is P0015, which indicates the exhaust camshaft is too far behind in timing.

This can be a fairly serious code. Owners have reported that a stuck oil control solenoid is one of the most likely causes of the issue.

Another fairly common issue is P0174, which indicates that the second bank of the engine is running too lean. Because this code relates to the second bank, only a limited number of Avalons that were fitted with V6 engines can be susceptible to it.

In some cases, a faulty oxygen sensor can be the culprit. Another fairly common cause is a dirty or defective MAF sensor.

Another fairly common issue is shown by fault code P0441, which represents an issue with the evaporative emissions control (EVAP) system purge flow. Like a number of Toyota models, a faulty purge control valve is one of the most likely causes of this issue. Another simple fix owners have found is replacing the fuel cap.