Search: U Codes

U Codes

What Is a DTC? Complete Technical Guide to Diagnostic Trouble Codes

A Diagnostic Trouble Code (DTC) is an alphanumeric diagnostic identifier stored by a vehicle control module when its programmed diagnostic monitor…

What Does the U Mean in an OBD2 Code?

What Does the U Mean in an OBD2 Code? The letter U at the beginning of an OBD2 diagnostic trouble code stands for Network Communication . U codes …

What Does the P Mean in an OBD2 Code? P Codes Explained

The letter P at the beginning of an OBD2 diagnostic trouble code stands for Powertrain . P codes are related to systems that control the engine…

OBD2 Scanner CAN Bus Diagnostics: How to Find Communication Faults

OBD2 scanner CAN bus diagnostics is one of the most useful advanced diagnostic procedures for modern vehicles. When an electronic control module…

U0077 Code: Reserved by SAE – Manufacturer-Specific Communication Network Code

What Is the U0077 Code? The U0077 diagnostic trouble code (DTC) is currently reserved by SAE (Society of Automotive Engineers) and does not have a…

U0076 Code: Reserved by SAE – Communication Network Diagnostic Code

What Is the U0076 Code? The U0076 diagnostic trouble code is currently reserved by SAE (Society of Automotive Engineers) and is not assigned a sta…

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