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:
U0139: Lost Communication with Suspension Control Module "B"
Is the U0139 code causing communication issues in your vehicle? Read on to learn how to deal with this communication network problem and get your vehicle back on the road.
U013A: ISO/SAE Reserved
The U013A 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.
U013B: ISO/SAE Reserved
The U013B 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.
U013C: ISO/SAE Reserved
The U013C 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.
U013D: ISO/SAE Reserved
The U013D 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.
U013E: ISO/SAE Reserved
The U013E 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.
U013F: ISO/SAE Reserved
The U013F 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.
U0140: Lost Communication With Body Control Module
Is the U0140 code causing communication issues in your vehicle? Read on to learn how to deal with this communication network problem and get your vehicle back on the road.
U0141: Lost Communication With Body Control Module "A"
Is the U0141 code causing communication issues in your vehicle? Read on to learn how to deal with this communication network problem and get your vehicle back on the road.
U0142: Lost Communication With Body Control Module "B"
Is the U0142 code causing communication issues in your vehicle? Read on to learn how to deal with this communication network problem and get your vehicle back on the road.