P0449 Toyota Highlander

A somewhat common issue with the Toyota Highlander is the P0449 code. This code references a number that is given to you when you plug it into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very often … Read more

Toyota Highlander P0455: Meaning, Causes, + How to Fix

P0455 in the Toyota Highlander is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your Highlander. But, whenever the check engine light is on, it’s … Read more

Toyota Highlander P0446: Meaning, Causes, How to Fix

A prevalent issue with the Toyota Highlander is the P0446 code. This code corresponds to a specific number obtained when connecting your Highlander to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more

Toyota Highlander P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Toyota Highlander is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system.  While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more

Toyota Highlander P0300: Meaning, Causes, + How to Fix

P0300 is a generic OBDII code that can occur with the Toyota Highlander. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, … Read more

Toyota Highlander P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Toyota Highlander is P0171. It indicates that your Toyota Highlander is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more

Toyota Highlander P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Toyota Highlander P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more

Toyota Highlander P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Toyota Highlander P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

Toyota Highlander P0401: Meaning, Causes, How to Fix

P0401 is a very common OBDII trouble code that’ll pop up in the Toyota Highlander. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your vehicle is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more