Welcome to the ultimate OBD2 Diagnostic Trouble Codes (DTC) reference guide. This comprehensive directory provides detailed breakdowns, meanings, and repair solutions for standard automotive fault codes mandated by the OBD2 protocol. Here you will find universal codes applicable to all makes and models, as well as manufacturer-specific trouble codes.
What is covered in our guides:
Code Definitions: Clear explanations of what each powertrain (P), body (B), chassis (C), and network (U) code means in plain English.
Common Symptoms: How your vehicle behaves when the code triggers (Check Engine Light, limp mode, rough idle, or drop in fuel economy).
Potential Causes: Step-by-step breakdown of faulty sensors, wiring issues, vacuum leaks, or mechanical failures.
Diagnostic & Repair Steps: Professional mechanic tips on how to safely troubleshoot and fix the issue yourself or prepare for a repair shop visit.
Use this search directory to decode your scanner’s readings, estimate repair costs, and keep your vehicle running smoothly.
Introduction Encountering the P0302 code in your Exeed? Here is a complete guide to its causes, symptoms, and solutions. Quick Summary: The P0302 error is most likely caused by a faulty ignition system, specifically in cylinder 2. The severity level of this issue is medium, and the urgency of repair is soon, as it may…
Introduction Encountering the P0172 code in your Omoda? Here is a complete guide to its causes, symptoms, and solutions. Quick Summary: The **P0172 error** is often linked to a rich fuel mixture in Bank 1, which may be associated with faulty oxygen sensors or fuel injectors. The severity level of this code is medium, and…
Introduction The P0340 error code on FAW is a fairly common issue that many drivers face. Quick Summary: The **P0340 error** is most likely caused by a malfunctioning camshaft position sensor or its circuit. The severity level of this issue is moderate, and the urgency of repair is soon, as it may cause decreased engine…
Introduction Encountering the P0506 code in your Great Wall? Here is a complete guide to its causes, symptoms, and solutions. Quick Summary: The P0506 error is often linked to issues with the idle air control valve or its circuit, which may lead to decreased engine performance and fuel efficiency. The severity level of this code…
Introduction The P0101 error code on JAC is a fairly common issue that many drivers face. Quick Summary: The **P0101 error** is often linked to issues with the Mass Air Flow (MAF) sensor circuit, which can lead to decreased engine performance and fuel efficiency. This **P0101 trouble code** is usually considered a moderate severity issue,…
Introduction Let’s break down exactly what the P0171 trouble code means for your JAC and how to fix it. Quick Summary: **The P0171 error is often linked to a lean fuel mixture in Bank 1, which can be caused by a faulty oxygen sensor or a vacuum leak**. The severity level of this code is…
Introduction The P0105 error code on Chery is a fairly common issue that many drivers face. Quick Summary: The P0105 error is most likely caused by a malfunction in the Manifold Absolute Pressure (MAP) or Barometric Pressure (BARO) circuit. This issue has a **medium severity level** and requires urgent repair to prevent potential damage to…
Introduction The P2198 error code on Chery is a fairly common issue that many drivers face. Quick Summary: **The P2198 error is often linked to a faulty oxygen sensor or a rich fuel mixture issue**. The severity level of this code is typically moderate, but it can lead to decreased fuel efficiency and potentially cause…
Introduction Let’s break down exactly what the P0222 trouble code means for your Geely and how to fix it. The P0222 error is often linked to issues with the throttle or pedal position sensor, which can affect the overall performance of your vehicle. Diagnosing the P0222 code requires a thorough understanding of the affected system…
Introduction Let’s break down exactly what the P0607 trouble code means for your Omoda and how to fix it. Quick Summary: The P0607 error is often linked to issues with the control module’s performance, which may be associated with faulty programming, corrosion, or damage to the module itself. The severity level of this code is…