U01xx codes — Network communication

182 generic network trouble codes from U0100 to U01BF. Each links to its page: what it means, how serious it is, and how to fix it.

• U0100Lost Communication With ECM/PCM "A"
• U0101Lost Communication With TCM
• U0102Lost Communication With Transfer Case Control Module
• U0103Lost Communication With Gear Shift Control Module A
• U0104Lost Communication With Cruise Control Module
• U0105Lost Communication With Fuel Injector Control Module
• U0106Lost Communication With Glow Plug Control Module 1
• U0107Lost Communication With Throttle Actuator A Control Module
• U0108Lost Communication With Alternative Fuel Control Module
• U0109Lost Communication With Fuel Pump Control Module A
• U010ALost Communication With Exhaust Gas Recirculation Control Module A
• U010BLost Communication With Exhaust Gas Recirculation Control Module 'B'
• U010CLost Communication With Turbocharger/Supercharger Control Module A
• U010DLost Communication With Turbocharger/Supercharger Control Module B
• U010ELost Communication With Reductant Control Module
• U010FLost Communication With Air Conditioning Control Module
• U0110Lost Communication With Drive Motor Control Module A
• U0111Lost Communication With Battery Energy Control Module A
• U0112Lost Communication With Battery Energy Control Module B
• U0113Lost Communication With Emissions Critical Control Information
• U0114Lost Communication With Four-Wheel Drive Clutch Control Module
• U0115Lost Communication With ECM/PCM B
• U0116Lost Communication With Coolant Temperature Control Module
• U0117Lost Communication With Electrical PTO Control Module
• U0118Lost Communication With FACM
• U0119Lost Communication With Fuel Cell Control Module
• U011ALost Communication With Exhaust Gas Sensor Module A
• U011BLost Communication With Rocker Arm Control Module A
• U011CLost Communication With Rocker Arm Control Module B
• U011DLost Communication With All Wheel Drive Control Module
• U011ELost Communication With Throttle Actuator B Control Module
• U011FLost Communication With V2X Module
• U0120Lost Communication With Starter/Generator Control Module
• U0121Lost Communication With Anti-Lock Brake System (ABS) Control Module A
• U0122Lost Communication With Vehicle Dynamics Control Module
• U0123Lost Communication With Yaw Rate Sensor Module
• U0124Lost Communication With Lateral Acceleration Sensor Module
• U0125Lost Communication With Multi-axis Acceleration Sensor Module A
• U0126Lost Communication With Steering Angle Sensor Module
• U0127Lost Communication With Tire Pressure Monitor Module
• U0128Lost Communication With Park Brake Control Module
• U0129Lost Communication With Brake System Control Module A
• U012ALost Communication With Chassis Control Module (also known as the Air Suspension Module or Suspension Module Integrated Suspension Control Module (CHCM))
• U012BLost Communication With Chassis Control Module B
• U012CLost Communication With Active Vibration Control Module
• U012DLost Communication With Generator A Control Module
• U012ELost Communication With Camshaft Position Control Module
• U012FLost Communication With Generator B Control Module
• U0130Lost Communication With Steering Effort Control Module
• U0131Lost Communication With Power Steering Control Module A
• U0132Lost Communication With Suspension Control Module A
• U0133Lost Communication With Active Roll Control Module
• U0134Lost Communication With Power Steering Control Module
• U0135Lost Communication With Differential Control Module
• U0136Lost Communication With Differential Control Module
• U0137Lost Communication With Trailer Brake Control Module
• U0138Lost Communication with All Terrain Control Module
• U0139Lost Communication With Suspension Control Module
• U013CLost Communication With Accelerator Pedal Module
• U013DLost Communication With Vacuum Sensor A
• U013ELost Communication With Vacuum Sensor B
• U013FLost Communication With Pedestrian Alert Control Module
• U0140Lost Communication With Body Control Module
• U0141Lost Communication With Body Control Module A
• U0142Lost Communication With Body Control Module B
• U0143Lost Communication With Body Control Module C
• U0144Lost Communication With Body Control Module D
• U0145Lost Communication With Body Control Module E
• U0146Lost Communication With Serial Data Gateway Module A
• U0147Lost Communication With Serial Data Gateway Module B
• U0148Lost Communication With Serial Data Gateway Module C
• U0149Lost Communication With Serial Data Gateway Module D
• U014ALost Communication With Battery Energy Control Module C
• U014BLost Communication With Hybrid/EV Battery Inductive Charging Module
• U014CLost Communication With Battery Energy Control Module D
• U014DLost Communication with Mirror Control Module B
• U014ELost Communication With Multi-axis Acceleration Sensor Module B
• U0150Lost Communication With Serial Data Gateway Module E
• U0151Lost Communication With Restraints Control Module
• U0152Lost Communication With Side Restraints Control Module - Left
• U0153Lost Communication With Side Restraints Control Module - Right
• U0154Lost Communication With Restraints Occupant Classification System Module
• U0155Lost Communication With Instrument Panel Cluster (IPC) Control Module
• U0156Lost Communication With Information Center A
• U0157Lost Communication With Information Center B
• U0158Lost Communication With Head Up Display
• U0159Lost Communication With Parking Assist Control Module A
• U015ALost Communication With Anti-Lock Brake System (ABS) Control Module B
• U015BLost Communication With Power Steering Control Module “B”
• U015CLost Communication With Automated Driving System Control Module A
• U015DLost Communication With Automated Driving System Control Module B
• U015ELost Communication With Automated Driving System Interface Module “A”
• U015FLost Communication With Automated Driving System Interface Module “B
• U0160Lost Communication With Audible Alert Control Module
• U0161Lost Communication With Compass Module
• U0162Lost Communication With Navigation Display Module
• U0163Lost Communication With Navigation Control Module
• U0164Lost Communication With HVAC Control Module
• U0165Lost Communication With HVAC Control Module - Rear
• U0166Lost Communication With Auxiliary Heater Control Module
• U0167Lost Communication With Vehicle Immobilizer Control Module
• U0168Lost Communication With Vehicle Security Control Module
• U0169Lost Communication With Sunroof Control Module
• U016ALost Communication With Global Positioning System Module
• U016BLost Communication With A/C Compressor Control Module
• U016CLost Communication With Fuel Pump Control Module 'B'
• U016DLost Communication With Exhaust Gas Sensor Module B
• U0170Lost Communication With Restraints System Sensor A
• U0171Lost Communication With Restraints System Sensor B
• U0172Lost Communication With Restraints System Sensor C
• U0173Lost Communication With Restraints System Sensor D
• U0174Lost Communication With Restraints System Sensor E
• U0175Lost Communication With Restraints System Sensor F
• U0176Lost Communication With Restraints System Sensor G
• U0177Lost Communication With Restraints System Sensor H
• U0178Lost Communication With Restraints System Sensor I
• U0179Lost Communication With Restraints System Sensor J
• U017ALost Communication With Restraints System Sensor K
• U017BLost Communication With Restraints System Sensor L
• U017CLost Communication With Restraints System Sensor M
• U017DLost Communication With Restraints System Sensor N
• U017ELost Communication With Seatbelt Pretensioner Module 'A'
• U017FLost Communication With Seat Belt Pretensioner Module B
• U0180Lost Communication With Automatic Lighting Control Module
• U0181Lost Communication With Headlamp Leveling Control Module A
• U0182Lost Communication With Lighting Control Module - Front
• U0183Lost Communication With Lighting Control Module - Rear A
• U0184Lost Communication With Radio
• U0185Lost Communication With Antenna Control Module
• U0186Lost Communication With Audio Amplifier A
• U0187Lost Communication With Digital Disc Player/Changer Module A
• U0188Lost Communication With Digital Disc Player/Changer Module B
• U0189Lost Communication With Digital Disc Player/Changer Module C
• U018ALost Communication With Headlamp Leveling Control Module B
• U0190Lost Communication With Digital Disc Player/Changer Module D
• U0191Lost Communication With Television
• U0192Lost Communication With Personal Computer
• U0193Lost Communication With Digital Audio Control Module A
• U0194Lost Communication With Digital Audio Control Module B
• U0195Lost Communication With Subscription Entertainment Receiver Module
• U0196Lost Communication With Entertainment Control Module - Rear A
• U0197Lost Communication With Telephone Control Module
• U0198Lost Communication With Telematic Control Module
• U0199Lost Communication With Door Control Module A
• U019ALost Communication With Tachograph Module
• U019BLost Communication With Battery Charger Control Module A
• U019CLost Communication With Glow Plug Control Module 2
• U019DLost Communication With Direct Ozone Reduction Catalyst Temperature Sensor
• U019ELost Communication With Transmission Range Control Module
• U019FLost Communication With Engine Coolant Pump Control Module
• U01A0Lost Communication With Hybrid/EV Battery Interface Control Module A
• U01A1Lost Communication With Hybrid/EV Battery Interface Control Module B
• U01A2No communication with the hybrid drive / electric vehicle battery pack interface control module C
• U01A3Lost Communication With Hybrid/EV Battery Interface Control Module D
• U01A4Lost Communication with Hybrid/EV Battery Interface Control Module "E"
• U01A5Lost Communication With Hybrid/EV Battery Interface Control Module F
• U01A6Lost Communication With Hybrid/EV Battery Interface Control Module G
• U01A7Lost Communication With Hybrid/EV Battery Interface Control Module H
• U01A8Lost Communication With Hybrid/EV Battery Interface Control Module I
• U01A9Lost Communication With Hybrid/EV Battery Interface Control Module J
• U01AALost Communication With Hybrid/EV Battery Interface Control Module K
• U01ABLost Communication With Hybrid/EV Battery Interface Control Module L
• U01ACLost Communication With Hybrid/EV Battery Interface Control Module M
• U01ADLost Communication With Hybrid/EV Battery Interface Control Module N
• U01AELost Communication With Hybrid/EV Battery Interface Control Module O
• U01AFLost Communication With Hybrid/EV Battery Interface Control Module P
• U01B0Lost Communication With Battery Monitor Module
• U01B1Lost Communication With Particulate Matter Sensor B
• U01B2Lost Communication With Planetary Gear Set Control Module
• U01B3Lost Communication With Brake Blending Actuator
• U01B4Lost Communication With Brake System Control Module B
• U01B5Lost Communication With Catalyst Heater Control Module
• U01B6Lost Communication With Fuel Heater Control Module
• U01B7Lost Communication With Switch Input Module “A”
• U01B8Lost Communication With Switch Input Module “B”
• U01B9Lost Communication With Switch Input Module “C”
• U01BALost Communication With Park Lock/Pawl Control Module
• U01BBLost Communication With Battery Charger Control Module B
• U01BCLost Communication With Charge Air Cooler Coolant Pump B
• U01BDLost Communication With DC/DC Converter Control Module C
• U01BELost Communication with Drive Motor A Clutch Actuator
• U01BFLost Communication with Battery Management Control Module

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