Generic Codes

Generic OBD2 codes are standardized codes that apply to all cars that are OBD2 compliant, regardless of the make or model. 

Our collection of articles on this page provides a wealth of information about these codes, going beyond just an explanation of what they mean. We analyze each code in detail, providing technical explanations, common causes, symptoms to look out for, and recommended solutions for each issue.

So why wait? Start exploring now!

In a hurry? Quickly jump to the code you're facing:

B029A: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B029A code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B029B: ISO/SAE Reserved

By OBD Codex / February 13, 2024

The B029B code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B029C: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B029C code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B029D: ISO/SAE Reserved

By OBD Codex / February 10, 2024

The B029D code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B029E: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B029E code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B029F: ISO/SAE Reserved

By OBD Codex / February 13, 2024

The B029F code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B0300: ISO/SAE Reserved

By OBD Codex / February 10, 2024

The B0300 code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B0301: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B0301 code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B0302: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B0302 code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.

B0303: ISO/SAE Reserved

By OBD Codex / February 09, 2024

The B0303 code is a generic ISO/SAE Reserved code that may appear in your vehicle's diagnostic system. Read on to learn more about it and what you should do to deal with it.