OBD2 Codes

Understand OBD2 codes with our detailed guide. Learn how to interpret diagnostic trouble codes (DTCs) to pinpoint car issues and keep your vehicle running smoothly.

U0101 Code? Here’s How to Fix It – Quickly and Easily

U0101 Code Meaning
The U0101 code is a generic network code indicating “Lost Communication with TCM” (Transmission Control Module) among various OBD2 codes. ...

P0506 Code? Here’s How to Fix It – Quickly and Easily

P0506 Code Meaning
The P0506 code is a generic OBD-II powertrain code indicating an “Idle Control System RPM Lower Than Expected” condition. The ...

P2101 Code? Here’s How to Fix It – Quickly and Easily

P2101 Code Meaning
The P2101 code is a generic OBD-II code indicating a “Throttle Actuator Control Motor Circuit Range/Performance” fault. It means the ...

P0776 Code? Here’s How to Fix It – Quickly and Easily

P0776 Code Meaning
The P0776 code is a generic OBD-II powertrain code indicating a “Pressure Control Solenoid ‘B’ Performance or Stuck Off” condition. ...

P0523 Code? Here’s How to Fix It – Quickly and Easily

P0523 Code Meaning
The P0523 code is a generic OBD-II code indicating an “Engine Oil Pressure Sensor/Switch ‘A’ Circuit High” condition among various ...