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:

U03E9: ISO/SAE Reserved

By OBD Codex / January 27, 2024

The U03E9 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.

U03EA: ISO/SAE Reserved

By OBD Codex / February 12, 2024

The U03EA 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.

U03EB: ISO/SAE Reserved

By OBD Codex / February 13, 2024

The U03EB 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.

U03EC: ISO/SAE Reserved

By OBD Codex / February 14, 2024

The U03EC 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.

U03ED: ISO/SAE Reserved

By OBD Codex / February 10, 2024

The U03ED 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.

U03EE: ISO/SAE Reserved

By OBD Codex / February 14, 2024

The U03EE 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.

U03EF: ISO/SAE Reserved

By OBD Codex / February 15, 2024

The U03EF 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.

U03F0: ISO/SAE Reserved

By OBD Codex / February 12, 2024

The U03F0 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.

U03F1: ISO/SAE Reserved

By OBD Codex / February 14, 2024

The U03F1 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.

U03F2: ISO/SAE Reserved

By OBD Codex / February 14, 2024

The U03F2 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.