U02xx

174 generic network & communication codes in the U02xx range.Module-to-module communication across the vehicle data bus.

0 of these have been through editorial review and carry full diagnostic guidance.

Codes in this range

U0200Lost Communication With Door Control Module BSeverity level 3 of 5: Diagnose soon.
U0201Lost Communication With Door Control Module CSeverity level 3 of 5: Diagnose soon.
U0202Lost Communication With Door Control Module DSeverity level 3 of 5: Diagnose soon.
U0203Lost Communication With Door Control Module ESeverity level 3 of 5: Diagnose soon.
U0204Lost Communication With Door Control Module FSeverity level 3 of 5: Diagnose soon.
U0205Lost Communication With Door Control Module GSeverity level 3 of 5: Diagnose soon.
U0206Lost Communication With Folding Top Control ModuleSeverity level 3 of 5: Diagnose soon.
U0207Lost Communication With Moveable Roof Control Module ASeverity level 3 of 5: Diagnose soon.
U0208Lost Communication With Seat Control Module ASeverity level 3 of 5: Diagnose soon.
U0209Lost Communication With Seat Control Module BSeverity level 3 of 5: Diagnose soon.
U020ALost Communication With Moveable Roof Control Module BSeverity level 3 of 5: Diagnose soon.
U020BLost Communication With Door Control Module HSeverity level 3 of 5: Diagnose soon.
U020CLost Communication With Wireless Accessory Charging Module ASeverity level 3 of 5: Diagnose soon.
U020DLost Communication With Wireless Accessory Charging Module BSeverity level 3 of 5: Diagnose soon.
U0210Lost Communication With Seat Control Module CSeverity level 3 of 5: Diagnose soon.
U0211Lost Communication With Seat Control Module DSeverity level 3 of 5: Diagnose soon.
U0212Lost Communication with Steering Column Control ModuleSeverity level 5 of 5: Stop driving.
U0213Lost Communication with Mirror Control ModuleSeverity level 2 of 5: Not urgent.
U0214Lost Communication with Remote Function ActuationSeverity level 2 of 5: Not urgent.
U0215Lost Communication with Door Control Module Front DriverSeverity level 2 of 5: Not urgent.
U0216Lost Communication with Door Control Module Front PassengerSeverity level 2 of 5: Not urgent.
U0217Lost Communication with Door Control Module Rear DriverSeverity level 2 of 5: Not urgent.
U0218Lost Communication with Door Control Module Rear PassengerSeverity level 2 of 5: Not urgent.
U0219Lost Communication with Liftgate/Decklid Control ModuleSeverity level 2 of 5: Not urgent.
U0220Lost Communication with Door Control Module DSeverity level 2 of 5: Not urgent.
U0221Lost Communication with Door Control Module ESeverity level 2 of 5: Not urgent.
U0222Lost Communication with Door Control Module FSeverity level 2 of 5: Not urgent.
U0223Lost Communication With Door Window Motor BSeverity level 3 of 5: Diagnose soon.
U0224Lost Communication With Door Window Motor CSeverity level 3 of 5: Diagnose soon.
U0225Lost Communication With Door Window Motor DSeverity level 3 of 5: Diagnose soon.
U0226Lost Communication With Door Window Motor ESeverity level 3 of 5: Diagnose soon.
U0227Lost Communication With Door Window Motor FSeverity level 3 of 5: Diagnose soon.
U0228Lost Communication With Door Window Motor GSeverity level 3 of 5: Diagnose soon.
U0229Lost Communication With Heated Steering Wheel ModuleSeverity level 5 of 5: Stop driving.
U022ELost Communication With Object Detection Maintenance Control Module ASeverity level 4 of 5: Get it looked at now.
U022FLost Communication With Object Detection Maintenance Control Module BSeverity level 4 of 5: Get it looked at now.
U0230Lost Communication With Rear Gate ModuleSeverity level 3 of 5: Diagnose soon.
U0231Lost Communication with Rain Sensor ModuleSeverity level 2 of 5: Not urgent.
U0232Lost Communication with Left Side Obstacle Detection Control ModuleSeverity level 2 of 5: Not urgent.
U0233Lost Communication with Right Side Obstacle Detection Control ModuleSeverity level 2 of 5: Not urgent.
U0234Lost Communication With Convenience Recall ModuleSeverity level 3 of 5: Diagnose soon.
U0235Lost Communication with Cruise Control Front Distance Range SensorSeverity level 3 of 5: Diagnose soon.
U0236Lost Communication with Steering Angle Sensor ModuleSeverity level 5 of 5: Stop driving.
U0237Lost Communication with Sunroof Assembly Control ModuleSeverity level 2 of 5: Not urgent.
U0238Lost Communication With Digital Audio Control Module DSeverity level 3 of 5: Diagnose soon.
U0239Lost Communication With Entrapment Control Module ASeverity level 3 of 5: Diagnose soon.
U023ALost Communication With Image Processing Module ASeverity level 4 of 5: Get it looked at now.
U023BLost Communication With Image Processing Module BSeverity level 4 of 5: Get it looked at now.
U023CLost Communication With Image Processing Module CSeverity level 4 of 5: Get it looked at now.
U023DLost Communication With Front Distance Range Sensor - LeftSeverity level 4 of 5: Get it looked at now.
U023ELost Communication With Front Distance Range Sensor - RightSeverity level 4 of 5: Get it looked at now.
U0240Lost Communication With Entrapment Control Module BSeverity level 3 of 5: Diagnose soon.
U0241Lost Communication With Headlamp Control Module ASeverity level 3 of 5: Diagnose soon.
U0242Lost Communication With Headlamp Control Module BSeverity level 3 of 5: Diagnose soon.
U0243Lost Communication With Parking Assist Control Module BSeverity level 3 of 5: Diagnose soon.
U0244Lost Communication With Running Board Control Module ASeverity level 3 of 5: Diagnose soon.
U0245Lost Communication With Entertainment Control Module - FrontSeverity level 3 of 5: Diagnose soon.
U0246Lost Communication With Seat Control Module ESeverity level 3 of 5: Diagnose soon.
U0247Lost Communication With Seat Control Module FSeverity level 3 of 5: Diagnose soon.
U0248Lost Communication With Remote Accessory ModuleSeverity level 3 of 5: Diagnose soon.
U0249Lost Communication With Entertainment Control Module - Rear BSeverity level 3 of 5: Diagnose soon.
U024ALost Communication With Interior Lighting Control Module ASeverity level 3 of 5: Diagnose soon.
U024BLost Communication With Seat Control Module GSeverity level 2 of 5: Not urgent.
U024CLost Communication With Seat Control Module HSeverity level 2 of 5: Not urgent.
U024DLost Communication With Seat Control Module JSeverity level 2 of 5: Not urgent.
U024ELost Communication With Side Obstacle Detection Control Module CSeverity level 2 of 5: Not urgent.
U024FLost Communication With Side Obstacle Detection Control Module DSeverity level 2 of 5: Not urgent.
U0250Lost Communication With Impact Classification System ModuleSeverity level 3 of 5: Diagnose soon.
U0251Lost Communication With Running Board Control Module BSeverity level 2 of 5: Not urgent.
U0252Lost Communication With Lighting Control Module Rear BSeverity level 2 of 5: Not urgent.
U0253Lost Communication With Accessory Protocol Interface ModuleSeverity level 2 of 5: Not urgent.
U0254Lost Communication With Remote Start ModuleSeverity level 2 of 5: Not urgent.
U0255Lost Communication With Front Display Interface ModuleSeverity level 2 of 5: Not urgent.
U0256Lost Communication With Front Controls Interface Module ASeverity level 2 of 5: Not urgent.
U0257Lost Communication With Front Controls/Display Interface ModuleSeverity level 2 of 5: Not urgent.
U0258Lost Communication With Radio TransceiverSeverity level 2 of 5: Not urgent.
U0259Lost Communication With Special Purpose Vehicle Control Module ASeverity level 2 of 5: Not urgent.
U025ALost Communication With Special Purpose Vehicle Control Module BSeverity level 2 of 5: Not urgent.
U025BLost Communication With Special Purpose Vehicle Control Module CSeverity level 2 of 5: Not urgent.
U025CLost Communication With Special Purpose Vehicle Control Module DSeverity level 2 of 5: Not urgent.
U025DLost Communication With Front Controls Interface Module BSeverity level 2 of 5: Not urgent.
U025ELost Communication With Electronic Brake Booster Control Module ASeverity level 5 of 5: Stop driving.
U025FLost Communication With Electronic Brake Booster Control Module BSeverity level 5 of 5: Stop driving.
U0260Lost Communication With Seat Control Switch Module ASeverity level 2 of 5: Not urgent.
U0261Lost Communication With Seat Control Switch Module BSeverity level 2 of 5: Not urgent.
U0262Lost Communication With Audio Amplifier BSeverity level 2 of 5: Not urgent.
U0263Lost Communication With Speech Recognition ModuleSeverity level 2 of 5: Not urgent.
U0264Lost Communication With Camera Module RearSeverity level 2 of 5: Not urgent.
U0265Lost Communication With Image Processing Sensor ASeverity level 2 of 5: Not urgent.
U0266Lost Communication With Image Processing Sensor BSeverity level 2 of 5: Not urgent.
U0267Lost Communication With Image Processing Sensor CSeverity level 2 of 5: Not urgent.
U0268Lost Communication With Image Processing Sensor DSeverity level 2 of 5: Not urgent.
U0269Lost Communication With Image Processing Sensor ESeverity level 2 of 5: Not urgent.
U026ALost Communication With Image Processing Sensor FSeverity level 2 of 5: Not urgent.
U026BLost Communication With Image Processing Sensor GSeverity level 2 of 5: Not urgent.
U026CLost Communication With Image Processing Sensor HSeverity level 2 of 5: Not urgent.
U026DLost Communication With Image Processing Sensor ISeverity level 2 of 5: Not urgent.
U026ELost Communication With Image Processing Sensor JSeverity level 2 of 5: Not urgent.
U026FLost Communication With Image Processing Sensor KSeverity level 2 of 5: Not urgent.
U0270Lost Communication With Image Processing Sensor LSeverity level 2 of 5: Not urgent.
U0271Lost Communication With Seat Control Switch Module CSeverity level 2 of 5: Not urgent.
U0272Lost Communication With Seat Control Switch Module DSeverity level 2 of 5: Not urgent.
U0273Lost Communication With Lighting Driver Control Module ASeverity level 2 of 5: Not urgent.
U0274Lost Communication With Lighting Driver Control Module BSeverity level 2 of 5: Not urgent.
U0275Lost Communication With Lighting Driver Control Module CSeverity level 2 of 5: Not urgent.
U0276Lost Communication With Lighting Driver Control Module DSeverity level 2 of 5: Not urgent.
U0277Lost Communication With Seat Control Module KSeverity level 2 of 5: Not urgent.
U0278Lost Communication With Seat Control Module LSeverity level 2 of 5: Not urgent.
U0279Lost Communication With Haptic Control ModuleSeverity level 2 of 5: Not urgent.
U027ALost Communication With Battery Charger Control Module CSeverity level 4 of 5: Get it looked at now.
U027BLost Communication With Battery Charger Control Module DSeverity level 4 of 5: Get it looked at now.
U027CLost Communication With Off-Board Charger Control ModuleSeverity level 4 of 5: Get it looked at now.
U0284Lost Communication With Active Grille Air Shutter Module ASeverity level 3 of 5: Diagnose soon.
U0285Lost Communication With Active Grille Air Shutter Module BSeverity level 3 of 5: Diagnose soon.
U0286Lost Communication With Radiator Anti-Tamper DeviceSeverity level 3 of 5: Diagnose soon.
U0287Lost Communication With Transmission Fluid Pump Module ASeverity level 4 of 5: Get it looked at now.
U0288Lost Communication With DC/AC Converter Control Module ASeverity level 4 of 5: Get it looked at now.
U0289Lost Communication With DC/AC Converter Control Module BSeverity level 4 of 5: Get it looked at now.
U028ALost Communication With Transmission Fluid Pump Module BSeverity level 4 of 5: Get it looked at now.
U028BLost Communication With Active Grille Air Shutter Module CSeverity level 3 of 5: Diagnose soon.
U028CLost Communication With Active Grille Air Shutter Module DSeverity level 3 of 5: Diagnose soon.
U028DLost Communication With Active Aerodynamic Feature Control Module ASeverity level 2 of 5: Not urgent.
U028ELost Communication With Active Aerodynamic Feature Control Module BSeverity level 2 of 5: Not urgent.
U028FLost Communication With Active Aerodynamic Feature Control Module CSeverity level 2 of 5: Not urgent.
U0290Lost Communication With Active Aerodynamic Feature Control Module DSeverity level 2 of 5: Not urgent.
U0291Lost Communication With Gear Shift Control Module BSeverity level 4 of 5: Get it looked at now.
U0292Lost Communication With Drive Motor Control Module BSeverity level 4 of 5: Get it looked at now.
U0293Lost Communication with Hybrid Vehicle Control SystemSeverity level 4 of 5: Get it looked at now.
U0294Lost Communication with Powertrain Control Module BSeverity level 4 of 5: Get it looked at now.
U0295Lost Communication with Power Steering Control ModuleSeverity level 5 of 5: Stop driving.
U0296Lost Communication With AC/DC Converter Control Module ASeverity level 4 of 5: Get it looked at now.
U0297Lost Communication with Hybrid Powertrain Control ModuleSeverity level 4 of 5: Get it looked at now.
U0298Lost Communication With DC/DC Converter Control Module ASeverity level 4 of 5: Get it looked at now.
U0299Lost Communication With DC/DC Converter Control Module BSeverity level 4 of 5: Get it looked at now.
U029ALost Communication With Hybrid/EV Battery Pack Sensor ModuleSeverity level 4 of 5: Get it looked at now.
U029BLost Communication With Drive Motor Control Module CSeverity level 4 of 5: Get it looked at now.
U029CLost Communication With Drive Motor Control Module DSeverity level 4 of 5: Get it looked at now.
U029DLost Communication With NOx Sensor ASeverity level 4 of 5: Get it looked at now.
U029ELost Communication With NOx Sensor BSeverity level 4 of 5: Get it looked at now.
U029FLost Communication With Evaporative Emission System Leak Detection Control ModuleSeverity level 3 of 5: Diagnose soon.
U02A0Invalid Data Received From Hybrid/EV Battery Interface Control Module DSeverity level 4 of 5: Get it looked at now.
U02A1Lost Communication With NOx Sensor CSeverity level 4 of 5: Get it looked at now.
U02A2Lost Communication With Reductant Quality ModuleSeverity level 4 of 5: Get it looked at now.
U02A3Lost Communication With Particulate Matter SensorSeverity level 3 of 5: Diagnose soon.
U02A4Lost Communication With NH3 SensorSeverity level 3 of 5: Diagnose soon.
U02A5Lost Communication With Reductant Heater Control ModuleSeverity level 3 of 5: Diagnose soon.
U02A6Lost Communication With Safety Integration Control ModuleSeverity level 4 of 5: Get it looked at now.
U02A7Lost Communication With Engine Sound Control 1Severity level 2 of 5: Not urgent.
U02A8Lost Communication With Engine Sound Control 2Severity level 2 of 5: Not urgent.
U02A9Lost Communication With Charge Air Cooler Coolant Pump ASeverity level 4 of 5: Get it looked at now.
U02AALost Communication With Engine Disconnect ClutchSeverity level 4 of 5: Get it looked at now.
U02ABLost Communication With Vehicle Thermal Management Control ModuleSeverity level 4 of 5: Get it looked at now.
U02ACLost Communication With Turbocharger/Supercharger Boost Control ASeverity level 4 of 5: Get it looked at now.
U02ADLost Communication With Turbocharger/Supercharger Boost Control BSeverity level 4 of 5: Get it looked at now.
U02AELost Communication With Hybrid/EV Battery Coolant PumpSeverity level 4 of 5: Get it looked at now.
U02AFLost Communication With Turbocharger Turbine Inlet Valve Position SensorSeverity level 4 of 5: Get it looked at now.
U02B0Lost Communication With Turbocharger/Supercharger Boost Control B Position SensorSeverity level 4 of 5: Get it looked at now.
U02B1Lost Communication With Comfort and Convenience Display ASeverity level 2 of 5: Not urgent.
U02B2Lost Communication With Comfort and Convenience Display BSeverity level 2 of 5: Not urgent.
U02B3Lost Communication With Driver Monitoring System ModuleSeverity level 2 of 5: Not urgent.
U02B4Lost Communication With Front Radar Module ASeverity level 3 of 5: Diagnose soon.
U02B5Lost Communication With Front Radar Module BSeverity level 3 of 5: Diagnose soon.
U02B6Lost Communication With Rear Radar Module ASeverity level 2 of 5: Not urgent.
U02B7Lost Communication With Rear Radar Module BSeverity level 2 of 5: Not urgent.
U02B8Lost Communication With Rear Radar Module CSeverity level 2 of 5: Not urgent.
U02B9Lost Communication With Rear Radar Module DSeverity level 2 of 5: Not urgent.
U02BALost Communication With Hybrid/EV Electronics Coolant Pump BSeverity level 4 of 5: Get it looked at now.
U02BBLost Communication With EVAP System Purge PumpSeverity level 3 of 5: Diagnose soon.
U02BCLost Communication With Localization and Mapping ModuleSeverity level 2 of 5: Not urgent.
U02BDLost Communication With Night Vision Control ModuleSeverity level 2 of 5: Not urgent.
U02BELost Communication With Trailer Backup Assist Control ModuleSeverity level 2 of 5: Not urgent.
U02BFLost Communication With Interior Lighting Control Module BSeverity level 2 of 5: Not urgent.
U02C0Lost Communication With Active Radiator Air Flow Control Module ASeverity level 3 of 5: Diagnose soon.
U02C1Lost Communication With Hybrid/EV Electronics Coolant Pump CSeverity level 4 of 5: Get it looked at now.