Check-engine codes
What does my check-engine code mean?
Plain-English explanations for OBD-II trouble codes: what the code means, the most likely causes, symptoms, and how much labour a repair usually takes.
U0 codes · Network
- U0273Lost Communication With Lighting Driver Control Module A
- U0274Lost Communication With Lighting Driver Control Module B
- U0275Lost Communication With Lighting Driver Control Module C
- U0276Lost Communication With Lighting Driver Control Module D
- U0277Lost Communication With Seat Control Module K
- U0278Lost Communication With Seat Control Module L
- U0279Lost Communication With Haptic Control Module
- U027ALost Communication With Battery Charger Control Module C
- U027BLost Communication With Battery Charger Control Module D
- U027CLost Communication With Off-Board Charger Control Module
- U0284Lost Communication With Active Grille Air Shutter Module A
- U0285Lost Communication With Active Grille Air Shutter Module B
- U0286Lost Communication With Radiator Anti-Tamper Device
- U0287Lost Communication With Transmission Fluid Pump Module A
- U0288Lost Communication With DC/AC Converter Control Module A
- U0289Lost Communication With DC/AC Converter Control Module B
- U028ALost Communication With Transmission Fluid Pump Module B
- U028BLost Communication With Active Grille Air Shutter Module C
- U028CLost Communication With Active Grille Air Shutter Module D
- U028DLost Communication With Active Aerodynamic Feature Control Module A
- U028ELost Communication With Active Aerodynamic Feature Control Module B
- U028FLost Communication With Active Aerodynamic Feature Control Module C
- U0290Lost Communication With Active Aerodynamic Feature Control Module D
- U0291Lost Communication With Gear Shift Control Module B
- U0292Lost Communication With Drive Motor Control Module B
- U0293Lost Communication with Hybrid Vehicle Control System
- U0294Lost Communication with Powertrain Control Module B
- U0295Lost Communication with Power Steering Control Module
- U0296Lost Communication With AC/DC Converter Control Module A
- U0297Lost Communication with Hybrid Powertrain Control Module
- U0298Lost Communication With DC/DC Converter Control Module A
- U0299Lost Communication With DC/DC Converter Control Module B
- U029ALost Communication With Hybrid/EV Battery Pack Sensor Module
- U029BLost Communication With Drive Motor Control Module C
- U029CLost Communication With Drive Motor Control Module D
- U029DLost Communication With NOx Sensor A
- U029ELost Communication With NOx Sensor B
- U029FLost Communication With Evaporative Emission System Leak Detection Control Module
- U02A0Invalid Data Received From Hybrid/EV Battery Interface Control Module D
- U02A1Lost Communication With NOx Sensor C
- U02A2Lost Communication With Reductant Quality Module
- U02A3Lost Communication With Particulate Matter Sensor
- U02A4Lost Communication With NH3 Sensor
- U02A5Lost Communication With Reductant Heater Control Module
- U02A6Lost Communication With Safety Integration Control Module
- U02A7Lost Communication With Engine Sound Control 1
- U02A8Lost Communication With Engine Sound Control 2
- U02A9Lost Communication With Charge Air Cooler Coolant Pump A
- U02AALost Communication With Engine Disconnect Clutch
- U02ABLost Communication With Vehicle Thermal Management Control Module
- U02ACLost Communication With Turbocharger/Supercharger Boost Control A
- U02ADLost Communication With Turbocharger/Supercharger Boost Control B
- U02AELost Communication With Hybrid/EV Battery Coolant Pump
- U02AFLost Communication With Turbocharger Turbine Inlet Valve Position Sensor
- U02B0Lost Communication With Turbocharger/Supercharger Boost Control B Position Sensor
- U02B1Lost Communication With Comfort and Convenience Display A
- U02B2Lost Communication With Comfort and Convenience Display B
- U02B3Lost Communication With Driver Monitoring System Module
- U02B4Lost Communication With Front Radar Module A
- U02B5Lost Communication With Front Radar Module B
- U02B6Lost Communication With Rear Radar Module A
- U02B7Lost Communication With Rear Radar Module B
- U02B8Lost Communication With Rear Radar Module C
- U02B9Lost Communication With Rear Radar Module D
- U02BALost Communication With Hybrid/EV Electronics Coolant Pump B
- U02BBLost Communication With EVAP System Purge Pump
- U02BCLost Communication With Localization and Mapping Module
- U02BDLost Communication With Night Vision Control Module
- U02BELost Communication With Trailer Backup Assist Control Module
- U02BFLost Communication With Interior Lighting Control Module B
- U02C0Lost Communication With Active Radiator Air Flow Control Module A
- U02C1Lost Communication With Hybrid/EV Electronics Coolant Pump C
- U0300Internal Control Module Software Incompatibility
- U0301Software Incompatibility with ECM/PCM
- U0302Software Incompatibility with TCM
- U0303Software Incompatibility with Transfer Case Control Module
- U0304Invalid Data Received from Transmission Control Module
- U0305Software Incompatibility with Cruise Control Module
- U0306Software Incompatibility with Fuel Injector Control Module
- U0307Software Incompatibility with Glow Plug Control Module
- U0308Software Incompatibility with Body Control Module
- U0309Software Incompatibility With Alternative Fuel Control Module
- U030ASoftware Incompatibility With Evaporative Emission System Leak Detection Control Module
- U030BSoftware Incompatibility With Glow Plug Control Module 2
- U030CSoftware Incompatibility With Reductant Quality Module
- U030DSoftware Incompatibility With NOx Sensor A
- U030ESoftware Incompatibility With NOx Sensor B
- U030FSoftware Incompatibility With Reductant Control Module
- U0310Software Incompatibility With Fuel Pump Control Module
- U0311Software Incompatibility With Drive Motor Control Module
- U0312Software Incompatibility With Battery Energy Control Module A
- U0313Software Incompatibility With Battery Energy Control Module B
- U0314Software Incompatibility With Four-Wheel Drive Clutch Control Module
- U0315Software Incompatibility with ABS Control Module
- U0316Software Incompatibility with Park Brake Control Module
- U0317Software Incompatibility with Brake System Control Module
- U0318Software Incompatibility with Power Steering Control Module
- U0319Software Incompatibility with Anti-Lock Brake System Control Module
- U031ASoftware Incompatibility With Transmission Range Control Module
- U031BSoftware Incompatibility With DC/DC Converter Control Module A
Code data: OBDex open dataset (CC0), reviewed and rewritten for drivers. Always confirm a diagnosis before replacing parts.