
OBD2 Codes – On-Board Diagnostic P Codes (Free List)
Nov 5, 2025 · Below, you will find a full OBD2 code list with all the P-codes, which means that all these codes appear when there is trouble with the engine or drivetrain. Some of the codes …
P0420 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 7, 2025 · P0420 is one of the most common error codes. This guide applies to most vehicles and explains what the code means and how to fix it.
P0300 – Random or Multiple Misfire Detected - Mechanic Base
Oct 30, 2025 · The P0300 trouble code appears in your engine control unit if repetitive misfires occur inside any of your car’s cylinders. There could be many different things causing the car …
P0430 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 11, 2025 · In this guide, I look closer at the P0430 trouble code. I define its meaning, look at the causes, identify the symptoms, and show you possible ways to repair it.
P0562 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 10, 2025 · In this guide, we outline the meaning and top causes of the P0562 trouble code. We also look at the symptoms of the P0562 DTC, show you some possible fixes and tell you …
P0123 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 10, 2025 · In this guide, we show you the meaning and causes of the P0123 trouble code. We also touch on the most common symptoms of the P0123 DTC and discuss ways to …
P0456 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 10, 2025 · In this guide, we cover the main reasons and the meaning of the P0456 trouble code. We also look at the possible symptoms, show you how to troubleshoot and discuss …
P0335 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 10, 2025 · In this guide, we cover the meaning of the P0335 trouble code, show you some common symptoms it presents with and give you the top causes. We also look at how to …
P1450 Code – Meaning, Causes and Diagnosis - Mechanic Base
Mar 21, 2024 · If you're seeing the P1450 code on your car scanner, don't worry! We'll show you everything you need to know about this error code and how to fix it.
P0449 Code - Meaning, Causes & How to fix it - Mechanic Base
Nov 10, 2025 · In this guide, we cover the meaning and most common causes of the P0449 trouble code. We look at how to diagnose the problem, how to fix it and discuss some costs …