Control Module U Code List
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all devices. Not all DTCs listed will be applicable to all vehicles.
For symptom byte information, refer to Symptom Byte List .
For appropriate diagnostic procedure, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Control Module U Code List
| DTC | DTC Descriptor | Component Name |
|---|---|---|
| U0073 | Control Module Communication CAN Bus 2 Off | N/A |
| U0074 | Control Module Communication CAN Bus 3 Off | N/A |
| U0075 | Control Module Communication CAN Bus 1 Off | N/A |
| U0076 | Control Module Communication Powertrain Sensor CAN Bus Off | N/A |
| U0079 | Control Module Communication CAN Bus 4 Off | N/A |
| U007B | Control Module Communication CAN Bus 5 Off | N/A |
| U007E | Control Module Communication CAN Bus 8 Off | N/A |
| U0100 | Lost Communication with Engine Control Module | K20 Engine Control Module |
| U0101 | Lost Communication with Transmission Control Module | K71 Transmission Control Module |
| U0102 | Lost Communication with Transfer Case Control Module | K69 Transfer Case Control Module |
| U0103 | Lost Communication with Gear Shift Control Module | K212 Gear Shift Control Module |
| U010E | Lost Communication with Reductant Control Module | K115 Reductant Control Module |
| U0110 | Lost Communication with Drive Motor Control Module | K107 Drive Motor Control Module |
| U0111 | Lost Communication with Battery Energy Control Module | K16 Battery Energy Control Module |
| U0114 | Lost Communication with Rear Drive Control Module | K47 Rear Drive Control Module |
| U0121 | Lost Communication with Electronic Brake Control Module Lost Communication with Brake System Control Module 1 |
K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U0125 | Lost Communication with Vehicle Dynamic Sensor | B284 Vehicle Dynamic Sensor |
| U0126 | Lost Communication with Steering Angle Sensor Module | B99 Steering Angle Sensor Module |
| U0129 | Lost Communication with Brake System Control Module 1 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U012A | Lost Communication with Chassis Control Module | K38 Chassis Control Module |
| U0131 | Lost Communication with Power Steering Module | K43 Power Steering Control Module |
| U0132 | Lost Communication with Automatic Level Control Module | K5 Automatic Level Control Module |
| U0134 | Lost Communication with Active Rear Steering Motor Control Module | K92 Active Rear Steering Motor Control Module |
| U0136 | Lost Communication with Differential Control Module | K164 Differential Control Module |
| U0139 | Lost Communication with Electronic Suspension Control Module | K19 Suspension Control Module |
| U0140 | Lost Communication with Body Control Module | K9 Body Control Module |
| U0142 | Lost Communication with Lighting Control Module | K219 Lighting Control Module |
| U0146 | Lost Communication with Serial Data Gateway Module | K56 Serial Data Gateway Module |
| U0151 | Lost Communication with Restraints Control Module | K36 Restraints Control Module |
| U0154 | Lost Communication with Restraints Occupant Classification System Module - Passenger | K85P Restraints Occupant Classification System Module - Passenger |
| U0155 | Lost Communication with Instrument Panel Cluster Control Module | P16 Instrument Panel Cluster Control Module |
| U0158 | Lost Communication with Head-Up Display | P29 Head-Up Display |
| U0159 | Lost Communication with Parking Assist Control Module | K182 Parking Assist Control Module |
| U0163 | Lost Communication with Automated Driving Mapping Module | K179 Automated Driving Mapping Module |
| U0164 | Lost Communication with Heater and Air Conditioning User Interface Control - Front | A26 Heater and Air Conditioning User Interface Control - Front |
| U0165 | Lost Communication with Heater and Air Conditioning Auxiliary Control | A34 Heater and Air Conditioning Auxiliary Control |
| U0168 | Lost Communication with Content Theft Deterrent Sensor | B165 Content Theft Deterrent Sensor |
| U0169 | Lost Communication with Sunroof Window Motor | K61 Sunroof Control Module |
| U017E | Lost Communication with Front Seat Belt Retractor Motor Pretensioner - Left | M101L Front Seat Belt Retractor Motor - Left |
| U017F | Lost Communication with Front Seat Belt Retractor Motor Pretensioner - Right | M101R Front Seat Belt Retractor Motor - Right |
| U0180 | Lost Communication with Headlamp Control Module | K26 Headlamp Control Module |
| U0181 | Lost Communication with Left Headlamp Leveling Actuator | M29L Headlamp Leveling Actuator - Left |
| U0183 | Lost Communication with Trailer Lamp Control Module | K68 Trailer Lamp Control Module |
| U0184 | Lost Communication with Radio | A11 Radio |
| U0186 | Lost Communication with Audio Amplifier | T3 Audio Amplifier |
| U018A | Lost Communication with Right Headlamp Leveling Actuator | M29R Headlamp Leveling Actuator - Right |
| U0196 | Lost Communication with Rear Seat Entertainment Display | P22F Video Display - Right Front Seat Back |
| U0198 | Lost Communication with Telematic Control Module | K73 Telematic Control Module |
| U01B0 | Lost Communication with Battery Monitor Module | B110 Battery Monitor Module |
| U0208 | Lost Communication with Front Seat Heater Control Module | K29F Front Seat Heater Control Module / K29FV Front Seat Heater Vent Control Module |
| U0209 | Lost Communication with Front Seat Bladder Control Module - Driver | K104D Front Seat Bladder Control Module - Driver |
| U020C | Lost Communication with Wireless Accessory Charging Module | T22 Wireless Accessory Charging Module |
| U0210 | Lost Communication with Front Seat Bladder Control Module - Passenger | K104P Front Seat Bladder Control Module - Passenger |
| U0211 | Lost Communication with Driver Seat Adjuster Memory Module | K40D Driver Seat Adjuster Memory Module |
| U0212 | Lost Communication with Steering Column Tilt Wheel and Telescope Control Module | K99 Steering Column Control Module |
| U0214 | Lost Communication with Remote Function Actuator Module | K77 Remote Function Actuator Module |
| U0215 | Lost Communication with Front Side Door Window Switch - Driver | S79D Front Side Door Window Control Switch - Driver |
| U0216 | Lost Communication with Front Side Door Window Switch - Passenger | S79P Front Side Door Window Switch - Passenger |
| U0217 | Lost Communication with Rear Side Door Window Switch - Left | S79LR Rear Side Door Window Switch - Left |
| U0218 | Lost Communication with Rear Side Door Window Switch - Right | S79RR Rear Side Door Window Switch - Right |
| U0222 | Lost Communication with Front Side Door Window Regulator Motor - Driver | M74D Front Side Door Window Regulator Motor - Driver |
| U0223 | Lost Communication with Front Side Door Window Regulator Motor - Passenger | M74P Front Side Door Window Regulator Motor - Passenger |
| U0224 | Lost Communication with Rear Side Door Window Regulator Motor - Left | M74LR Rear Side Door Window Regulator Motor - Left |
| U0225 | Lost Communication with Rear Side Door Window Regulator Motor - Right | M74RR Rear Side Door Window Regulator Motor - Right |
| U0229 | Lost Communication with Steering Wheel Heat Control Module | K32 Heated Steering Wheel Module |
| U0230 | Lost Communication with Rear Gate Module | K194 Rear Gate Module |
| U0231 | Lost Communication with Windshield Rain Sensor | B117A Windshield Outside Moisture/Ambient Light and Humidity Sensor |
| U0232 | Lost Communication with Side Obstacle Detection Control Module - Left | B218L Side Obstacle Detection Control Module - Left |
| U0233 | Lost Communication with Side Obstacle Detection Control Module - Right | B218R Side Obstacle Detection Control Module - Right |
| U0235 | Lost Communication with Forward Range Radar Sensor - Long Range | B233B Forward Range Radar Sensor - Long Range |
| U0236 | Lost Communication with Column Lock Module | K60 Column Lock Module |
| U023A | Lost Communication with Image Processing Module 1 - Processor 1 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U023B | Lost Communication with Image Processing Module 1 - Processor 2 | K124AB Image Processing Module 1 - Processor 2 |
| U023C | Lost Communication with Video Processing Module | K157 Video Processing Module |
| U023D | Lost Communication with Short Range Radar Sensor - Left Front | B233LF Short Range Radar Sensor - Left Front |
| U023E | Lost Communication with Short Range Radar Sensor - Right Front | B233RF Short Range Radar Sensor - Right Front |
| U0241 | Lost Communication with Front Headlamp - Left | E13LA Front Headlamp - Left |
| U0242 | Lost Communication with Front Headlamp - Right | E13RA Front Headlamp - Right |
| U0244 | Lost Communication with Running Board Control Module | K4 Running Board Control Module |
| U0246 | Lost Communication with Passenger Seat Adjuster Memory Module | K40P Passenger Seat Adjuster Memory Module |
| U0247 | Lost Communication with Rear Seat Heater Control Module | K29R Rear Seat Heater Control Module |
| U024B | Lost Communication with Rear Seat Adjuster Memory Module - Left | K40LR Rear Seat Adjuster Memory Module - Left |
| U024C | Lost Communication with Rear Seat Adjuster Memory Module - Right | K40RR Rear Seat Adjuster Memory Module - Right |
| U0256 | Lost Communication with Infotainment Control Switch | S165 Infotainment Control Switch |
| U0257 | Lost Communication with Radio Control | P17 Radio Control |
| U0259 | Lost Communication with Low Volume Module | ??? |
| U0260 | Lost Communication with Front Seat Adjuster Switch - Driver | S64D Front Seat Adjuster Switch - Driver |
| U0261 | Lost Communication with Front Seat Adjuster Switch - Passenger | S64P Front Seat Adjuster Switch - Passenger |
| U0265 | Lost Communication with Front View Camera - Windshield | B174W Front View Camera - Windshield |
| U0271 | Lost Communication with Front Seat Heater Switch - Left | S32LF Front Seat Heater Switch - Left |
| U0272 | Lost Communication with Front Seat Heater Switch - Right | S32RF Front Seat Heater Switch - Right |
| U0284 | Lost Communication with Active Grille Air Shutter Actuator 1 | M96 Active Grille Air Shutter Actuator / M96A Active Grille Air Shutter Actuator 1 |
| U0285 | Lost Communication with Active Grille Air Shutter Actuator 2 | M96B Active Grille Air Shutter Actuator 2 |
| U0288 | Lost Communication with Accessory AC and DC Power Control Module | T1 DC/AC Converter Control Module |
| U029D | Lost Communication with Nitrogen Oxides Sensor 1 | B195A Nitrogen Oxides Sensor 1 |
| U029E | Lost Communication with Nitrogen Oxides Sensor 2 | B195B Nitrogen Oxides Sensor 2 |
| U02A1 | Lost Communication with Nitrogen Oxides Sensor 3 | B195C Nitrogen Oxides Sensor 3 |
| U02A3 | Lost Communication with Particulate Matter Sensor | B136 Exhaust Particulate Matter Sensor |
| U02A9 | Lost Communication with Charge Air Cooler Coolant Pump | M10 Charge Air Cooler Coolant Pump |
| U0401 | Invalid Data Received from Engine Control Module | K20 Engine Control Module |
| U0402 | Invalid Data Received from Transmission Control Module | K71 Transmission Control Module |
| U0403 | Invalid Data Received from Transfer Case Control Module | K69 Transfer Case Control Module |
| U0404 | Invalid Data Received from Gear Shift Control Module | K212 Gear Shift Control Module |
| U040F | Invalid Data Received from Reductant Control Module | K115 Reductant Control Module |
| U0411 | Invalid Data Received from Drive Motor Control Module | K107 Drive Motor Control Module |
| U0412 | Invalid Data Received from Battery Energy Control Module | K16 Battery Energy Control Module |
| U0414 | Invalid Data Received from Rear Drive Control Module | K47 Rear Drive Control Module |
| U0418 | Invalid Data Received from Brake System Control Module 1 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U0420 | Invalid Data Received from Power Steering Module | K43 Power Steering Control Module |
| U0421 | Invalid Data Received from Automatic Level Control Module | K5 Automatic Level Control Module |
| U0422 | Invalid Data Received from Body Control Module | K9 Body Control Module |
| U0423 | Invalid Data Received from Instrument Panel Cluster Control Module | P16 Instrument Panel Cluster Control Module |
| U0432 | Invalid Data Received from Vehicle Dynamic Sensor | B284 Vehicle Dynamic Sensor |
| U0433 | Invalid Data Received from Forward Range Radar Sensor - Long Range | B233B Forward Range Radar Sensor - Long Range |
| U0437 | Invalid Data Received from Differential Control Module | K164 Differential Control Module |
| U043A | Invalid Data Received from Electronic Suspension Control Module | K19 Suspension Control Module |
| U0443 | Invalid Data Received from Lighting Control Module | K219 Lighting Control Module |
| U0447 | Invalid Data Received from Serial Data Gateway Module | K56 Serial Data Gateway Module |
| U0452 | Invalid Data Received from Restraints Control Module | K36 Restraints Control Module |
| U0455 | Invalid Data Received from Restraints Occupant Classification System Module - Passenger | K85P Restraints Occupant Classification System Module - Passenger |
| U045A | Invalid Data Received from Parking Assist Control Module | K182 Parking Assist Control Module |
| U0485 | Invalid Data Received from Radio | A11 Radio |
| U0487 | Invalid Data Received from Audio Amplifier | T3 Audio Amplifier |
| U0499 | Invalid Data Received from Telematic Control Module | K73 Telematic Control Module |
| U04A4 | Invalid Data Received from Particulate Matter Sensor | B136 Exhaust Particulate Matter Sensor |
| U0512 | Invalid Data Received from Driver Seat Adjuster Memory Module | K40D Driver Seat Adjuster Memory Module |
| U052A | Invalid Data Received from Steering Wheel Heat Control Module | K32 Heated Steering Wheel Module |
| U0532 | Invalid Data Received from Windshield Rain Sensor | B117A Windshield Outside Moisture/Ambient Light and Humidity Sensor |
| U0537 | Invalid Data Received from Column Lock Module | K60 Column Lock Module |
| U053B | Invalid Data Received from Image Processing Module 1 - Processor 1 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U053C | Invalid Data Received from Image Processing Module 1 - Processor 2 | K124AB Image Processing Module 1 - Processor 2 |
| U053D | Invalid Data Received from Video Processing Module | K157 Video Processing Module |
| U0547 | Invalid Data Received from Passenger Seat Adjuster Memory Module | K40P Passenger Seat Adjuster Memory Module |
| U054C | Invalid Data Received from Rear Seat Adjuster Memory Module - Left | K40LR Rear Seat Adjuster Memory Module - Left |
| U054D | Invalid Data Received from Rear Seat Adjuster Memory Module - Right | K40RR Rear Seat Adjuster Memory Module - Right |
| U0557 | Invalid Data Received from Infotainment Control Switch | S165 Infotainment Control Switch |
| U0561 | Invalid Data Received from Front Seat Adjuster Switch - Driver | S64D Front Seat Adjuster Switch - Driver |
| U0562 | Invalid Data Received from Front Seat Adjuster Switch - Passenger | S64P Front Seat Adjuster Switch - Passenger |
| U0566 | Invalid Data Received from Front View Camera | B174 Front View Camera / B174W Front View Camera - Windshield |
| U0585 | Invalid Data Received from Active Grille Air Shutter Actuator 1 | M96 Active Grille Air Shutter Actuator / M96A Active Grille Air Shutter Actuator 1 |
| U0586 | Invalid Data Received from Active Grille Air Shutter Actuator 2 | M96B Active Grille Air Shutter Actuator 2 |
| U0599 | Invalid Data Received from Multifunction Power Supply Converter | T19 Multifunction Power Supply Converter |
| U059E | Invalid Data Received from Nitrogen Oxides Sensor 1 | B195A Nitrogen Oxides Sensor 1 |
| U059F | Invalid Data Received from Nitrogen Oxides Sensor 2 | B195B Nitrogen Oxides Sensor 2 |
| U05A8 | Invalid Data Received from Nitrogen Oxides Sensor 3 | B195C Nitrogen Oxides Sensor 3 |
| U05BD | Invalid Data Received from Automated Driving Mapping Module | K179 Automated Driving Mapping Module |
| U0601 | Lost Communication with Exhaust Pressure Differential Sensor - Bank 1 | B345 Exhaust Pressure Differential Sensor / B345A Exhaust Pressure Differential Sensor - Bank 1 |
| U0602 | Lost Communication with Exhaust Pressure Differential Sensor - Bank 2 | B345B Exhaust Pressure Differential Sensor - Bank 2 |
| U0606 | Lost Communication with Throttle Position Sensor 1 | Q38 Throttle Body |
| U0607 | Lost Communication with Throttle Position Sensor 2 | Q38 Throttle Body |
| U060F | Lost Communication with Mass Airflow Sensor 1 | B75 Mass Airflow Sensor / B75D Mass Airflow Sensor - Bank 1 |
| U0610 | Lost Communication with Mass Airflow Sensor 2 | B75E Mass Airflow Sensor - Bank 2 |
| U0617 | Lost Communication with Engine Coolant Control Valve | Q74 Engine Coolant Bypass Valve |
| U0623 | Lost Communication with Heater Coolant Pump | G17 Heater Coolant Pump |
| U0625 | Lost Communication with Fuel Rail Pressure Sensor | B310 Fuel Pressure and Temperature Sensor |
| U0632 | Lost Communication with Engine Cooling Fan | G10 Cooling Fan Motor / G10L Cooling Fan Motor - Left |
| U0633 | Lost Communication with Engine Cooling Fan 2 | G10R Cooling Fan Motor - Right |
| U0644 | Lost Communication with Turbocharger Wastegate Position Sensor Bank 1 | M128A Turbocharger Wastegate Actuator - Bank 1 |
| U0645 | Lost Communication with Air Deflector Control Module | ??? |
| U064D | Lost Communication with Trailer Brake Control Switch | S76 Trailer Brake Control Switch |
| U0658 | Lost Communication with Windshield Temperature Sensor | B160 Inside Air Moisture and Windshield Temperature Sensor |
| U0659 | Lost Communication with Temperature Valve Actuator - Left | M6 Temperature Valve Actuator / M6P Programmable Temperature Valve Actuator / M6L Temperature Valve Actuator - Left / M6PL Programmable Temperature Valve Actuator - Left |
| U065A | Lost Communication with Temperature Valve Actuator - Right | M6R Temperature Valve Actuator - Right / M6PR Programmable Temperature Valve Actuator - Right |
| U065B | Lost Communication with Mode Valve Actuator | M37 Mode Valve Actuator / M37P Programmable Mode Valve Actuator |
| U065C | Lost Communication with HVAC Mode Motor - Front 2 | ??? |
| U065D | Lost Communication with Air Inlet Valve Actuator | M4 Air Inlet Valve Actuator / M4P Programmable Air Inlet Valve Actuator |
| U065F | Lost Communication with Rear Temperature Valve Actuator - Left | M6B Rear Temperature Valve Actuator / M6BP Rear Programmable Temperature Valve Actuator / M6BL Rear Temperature Valve Actuator - Left |
| U0663 | Lost Communication with Rear Mode Valve Actuator - Left | M37B Rear Mode Valve Actuator / M37BP Rear Programmable Mode Valve Actuator / M37BL Rear Mode Valve Actuator - Left |
| U0670 | Lost Communication with Fuel Temperature Sensor 1 | B310 Fuel Pressure and Temperature Sensor |
| U0671 | Lost Communication with Fuel Temperature Sensor 2 | B310 Fuel Pressure and Temperature Sensor |
| U0672 | Lost Communication with Engine Coolant Pump | G59 Engine Coolant Pump |
| U067C | Lost Communication with Engine Cooling Fan 3 | G10LW Cooling Fan Motor - Lower |
| U1001 | Infotainment Communication CAN Bus Off | N/A |
| U1002 | Serial Data Gateway Module Communication CAN Bus 1 Off | K56 Serial Data Gateway Module |
| U1003 | Serial Data Gateway Module Communication CAN Bus 2 Off | K56 Serial Data Gateway Module |
| U1004 | Serial Data Gateway Module Communication CAN Bus 3 Off | K56 Serial Data Gateway Module |
| U1005 | Serial Data Gateway Module Communication CAN Bus 4 Off | K56 Serial Data Gateway Module |
| U1006 | Serial Data Gateway Module Communication CAN Bus 5 Off | K56 Serial Data Gateway Module |
| U1007 | Serial Data Gateway Module Communication CAN Bus 8 Off | K56 Serial Data Gateway Module |
| U1008 | Loss of Ethernet Link | N/A |
| U1009 | Reductant Control Module CAN Bus 3 Off | K115 Reductant Control Module |
| U100B | Gear Shift Control Module Powertrain Sensor Bus Enable | K212 Gear Shift Control Module |
| U101A | Software Incompatibility with Fuel Pump Power Control Module | K111 Fuel Pump Power Control Module |
| U101B | Lost Communication with Fuel Rail Pressure Sensor 2 | B310 Fuel Pressure and Temperature Sensor |
| U1100 | Lost Communication with Ambient Air Quality Sensor - Exterior | B108E Ambient Air Quality Sensor - Exterior |
| U1102 | Lost Communication with Windshield Wiper Motor - Left | M75L Windshield Wiper Motor - Left |
| U1103 | Lost Communication with Rear Closure Hands Free Module | K171 Rear Closure Hands Free Module |
| U1104 | Lost Communication with Sun Load and Ambient Light and Security Indicator Sensor | B10D Sun Load and Ambient Light and Security Indicator Sensor |
| U1105 | Lost Communication with Folding Top Control Module - Left | K23L Folding Top Control Module - Left |
| U1109 | Lost Communication with Windshield Humidity Sensor | B117 Windshield Outside Moisture Sensor |
| U110A | Lost Communication with Humidity Sensor - Air Temperature Sensor | B160 Inside Air Moisture and Windshield Temperature Sensor |
| U110B | Lost Communication with Theft Deterrent Module | P25 Content Theft Deterrent Alarm |
| U110C | Lost Communication with Passenger Compartment Air Filter Module | V1 Passenger Compartment Air Filter Module |
| U110D | Lost Communication with Ambient Color Lamp 1 | E8VA Front Floor Courtesy Lamp - Left |
| U110E | Lost Communication with Ambient Color Lamp 2 | E55RF Front Side Door Map Pocket Illumination Lamp - Right |
| U110F | Lost Communication with Ambient Color Lamp 3 | E55LF Front Side Door Map Pocket Illumination Lamp - Left |
| U1110 | Lost Communication with Ambient Color Lamp 4 | E8VB Rear Floor Courtesy Lamp - Left |
| U111A | Lost Communication with Engine Block Coolant Control Valve | Q97B Engine Coolant Flow Control Valve - Block |
| U111B | Lost Communication with Air Heater | E40 Air Heater |
| U111F | Lost Communication with Card Reader Receptacle | X20 Card Reader Receptacle |
| U1121 | Lost Communication with Roof Console | A103 Roof Console |
| U1122 | Lost Communication with Parking Brake Control Switch | S91 Parking Brake Control Switch |
| U1123 | Lost Communication with Driver Monitoring System Module | K180 Driver Monitoring System Module |
| U1125 | Lost Communication with Night Vision Module | K172 Night Vision Control Module |
| U1126 | Lost Communication with Short Range Radar Sensor - Left/Center Rear | B233LR Short Range Radar Rear Sensor - Left |
| U1127 | Lost Communication with Short Range Radar Sensor - Right Rear | B233RR Short Range Radar Rear Sensor - Right |
| U1128 | Lost Communication with Multifunction Energy Storage Capacitor Control Module | K186 Electrical System Voltage Stabilizer Control Module |
| U112A | Lost Communication with Auxiliary Engine Coolant Fan 1 | G57L Auxiliary Cooling Fan Motor 1 |
| U112B | Lost Communication with Auxiliary Engine Coolant Fan 2 | G57R Auxiliary Cooling Fan Motor 2 |
| U112C | Lost Communication with Fuel Operated Heater | ??? |
| U112D | Lost Communication with Trailer Tire Pressure Indicator Module | K214 Trailer Tire Pressure Indicator Module |
| U112F | Lost Communication with UHF Short Range Low Energy Remote Control Access Transceiver | K183 Near Field Communication Module |
| U1130 | Lost Communication with Ambient Air Quality Sensor - Interior | B108I Ambient Air Quality Sensor - Interior |
| U1131 | Lost Communication with Inside Ambient Air Quality Particulate Sensor Module | B357 Inside Ambient Air Quality Particulate Sensor Module |
| U1132 | Lost Communication with Folding 3rd Row Seat Module | K169 Folding 3rd Row Seat Module |
| U1133 | Lost Communication with Vehicle Performance Data Recorder | K161 Vehicle Performance Data Recorder |
| U1134 | Lost Communication with Rear Window Wiper Motor | M45 Rear Window Wiper Motor |
| U1135 | Lost Communication with UHF Low Energy Remote Control Access Sensor Transceiver 1 | B342A UHF Low Energy Remote Control Access Sensor Transceiver 1 |
| U1136 | Lost Communication with UHF Low Energy Remote Control Access Sensor Transceiver 2 | B342B UHF Low Energy Remote Control Access Sensor Transceiver 2 |
| U1137 | Lost Communication with UHF Low Energy Remote Control Access Sensor Transceiver 3 | B342C UHF Low Energy Remote Control Access Sensor Transceiver 3 |
| U1138 | Lost Communication with UHF Low Energy Remote Control Access Sensor Transceiver 4 | B342D UHF Low Energy Remote Control Access Sensor Transceiver 4 |
| U113B | Lost Communication with Radio Control Switch | S70R Radio Control Switch - Steering Wheel |
| U113C | Lost Communication with Windshield Light Sensor | B10 Headlamp Automatic Control Ambient Light Sensor |
| U113D | Lost Communication with Front Seat Belt Retractor Motor Pretensioner - Left | M101L Front Seat Belt Retractor Motor - Left |
| U113E | Lost Communication with Front Seat Belt Retractor Motor Pretensioner - Right | M101R Front Seat Belt Retractor Motor - Right |
| U1144 | Lost Communication with Front Floor Console Compartment Cooler | K175 Front Floor Console Compartment Cooler |
| U1145 | Lost Communication with Rear Seat Heater Switch - Left | S32LR Rear Seat Heater Switch - Left |
| U1146 | Lost Communication with Rear Seat Heater Switch - Right | S32RR Rear Seat Heater Switch - Right |
| U1147 | Lost Communication with Front Floor Console Control Module | K230 Front Floor Console Control Module |
| U1149 | Lost Communication with Headlamp Controller 1 - Left | E13LA Front Headlamp - Left |
| U114A | Lost Communication with Headlamp Controller 1 - Right | E13RA Front Headlamp - Right |
| U1150 | Lost Communication with Short Range Radar Sensor - Left Rear Side | B233SL Short Range Radar Rear Side Sensor - Left |
| U1151 | Lost Communication with Short Range Radar Sensor - Right Rear Side | B233SR Short Range Radar Rear Side Sensor - Right |
| U130E | Invalid Data Received from Driver Monitoring System Control Module | K180 Driver Monitoring System Module |
| U130F | Invalid Data Received from Short Range Radar Sensor - Left Front | B233LF Short Range Radar Sensor - Left Front |
| U1310 | Invalid Data Received from Short Range Radar Sensor - Right Front | B233RF Short Range Radar Sensor - Right Front |
| U1311 | Invalid Data Received from Short Range Radar Sensor - Left/Center Rear | B233LR Short Range Radar Rear Sensor - Left |
| U1312 | Invalid Data Received from Short Range Radar Sensor - Right Rear | B233RR Short Range Radar Rear Sensor - Right |
| U1313 | Invalid Data Received from Multifunction Energy Storage Capacitor Control Module | K186 Electrical System Voltage Stabilizer Control Module |
| U1314 | Invalid Data Received from Engine Cooling Fan | G10 Cooling Fan Motor / G10L Cooling Fan Motor - Left |
| U1315 | Invalid Data Received from Engine Cooling Fan 2 | G10R Cooling Fan Motor - Right |
| U1316 | Invalid Data Received from Engine Cooling Fan 3 | G10LW Cooling Fan Motor - Lower |
| U1319 | Invalid Data Received from Mass Airflow Sensor 1 | B75 Mass Airflow Sensor / B75D Mass Airflow Sensor - Bank 1 |
| U131B | Invalid Data Received from Main Water Pump Motor | ??? |
| U131D | Invalid Data Received from Fuel Pump Power Control Module | K111 Fuel Pump Power Control Module |
| U131F | Invalid Data Received from Trailer Brake Control Switch | S76 Trailer Brake Control Switch |
| U1320 | Invalid Data Received from Folding 3rd Row Seat Module | K169 Folding 3rd Row Seat Module |
| U1326 | Invalid Data Received from Windshield Light Sensor | B10 Headlamp Automatic Control Ambient Light Sensor |
| U1327 | Invalid Data Received from Air Heater | E40 Air Heater |
| U133D | Invalid Data Received from Folding Top Control Module - Left | K23L Folding Top Control Module - Left |
| U1345 | Engine Control Module LIN Bus 1 | K20 Engine Control Module |
| U1346 | Engine Control Module LIN Bus 2 | K20 Engine Control Module |
| U1347 | Engine Control Module LIN Bus 3 | K20 Engine Control Module |
| U1348 | Engine Control Module LIN Bus 4 | K20 Engine Control Module |
| U1349 | Engine Control Module LIN Bus 5 | K20 Engine Control Module |
| U134A | Invalid Data Received from Headlamp Controller 1 - Left | E13LA Front Headlamp - Left |
| U134B | Invalid Data Received from Headlamp Controller 1 - Right | E13RA Front Headlamp - Right |
| U135E | Lost Communication with Transmission Control Module on Engine Control Module LIN Bus 1 | K71 Transmission Control Module |
| U1360 | Headlamp Controller 1 - Left Received Invalid Data from Headlamp Control Module | E13LA Front Headlamp - Left & K26 Headlamp Control Module |
| U1361 | Headlamp Controller 1 - Right Received Invalid Data from Headlamp Control Module | E13RA Front Headlamp - Right & K26 Headlamp Control Module |
| U1366 | Invalid Data Received from Short Range Radar Sensor - Left Rear Side | B233SL Short Range Radar Rear Side Sensor - Left |
| U1367 | Invalid Data Received from Short Range Radar Sensor - Right Rear Side | B233SR Short Range Radar Rear Side Sensor - Right |
| U1369 | Reductant Control Module Received Invalid Data from Body Control Module | K115 Reductant Control Module & K9 Body Control Module |
| U1379 | Invalid Data Received from Engine Block Coolant Control Valve | Q97B Engine Coolant Flow Control Valve - Block |
| U137A | Invalid Data Received from Evaporative Emission Canister Purge Pump | G58 Evaporative Emission Canister Purge Pump |
| U137B | Gear Shift Control Module Received Invalid Data from Body Control Module | K212 Gear Shift Control Module & K9 Body Control Module |
| U137C | Gear Shift Control Module Received Invalid Data from Serial Data Gateway Module | K212 Gear Shift Control Module & K56 Serial Data Gateway Module |
| U137D | Gear Shift Control Module Received Invalid Data from Engine Control Module | K212 Gear Shift Control Module & K20 Engine Control Module |
| U137E | Invalid Data Received from Heater Coolant Pump | G17 Heater Coolant Pump |
| U137F | Serial Data Gateway Module Received Invalid Data from Body Control Module | K56 Serial Data Gateway Module & K9 Body Control Module |
| U1384 | Invalid Data Received from Auxiliary Engine Coolant Fan 1 | G57L Auxiliary Cooling Fan Motor 1 |
| U1385 | Invalid Data Received from Auxiliary Engine Coolant Fan 2 | G57R Auxiliary Cooling Fan Motor 2 |
| U1500 | Body Control Module LIN Bus 1 | K9 Body Control Module |
| U1502 | Body Control Module LIN Bus 3 | K9 Body Control Module |
| U1503 | Body Control Module LIN Bus 4 | K9 Body Control Module |
| U1507 | Driver Seat Adjuster Memory Module LIN Bus 1 | K40D Driver Seat Adjuster Memory Module |
| U150B | Instrument Panel Cluster Control Module LIN Bus 1 | P16 Instrument Panel Cluster Control Module |
| U150C | Driver Seat Adjuster Memory Module LIN Bus 2 | K40D Driver Seat Adjuster Memory Module |
| U150E | Body Control Module LIN Bus 5 | K9 Body Control Module |
| U151A | Image Processing Module LIN Bus 1 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U151E | Brake System Control Module LIN Bus 1 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U1520 | Brake System Control Module LIN Bus 2 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U1527 | Body Control Module LIN Bus 2 | K9 Body Control Module |
| U152A | Body Control Module LIN Bus 6 | K9 Body Control Module |
| U152B | Body Control Module LIN Bus 7 | K9 Body Control Module |
| U152C | Body Control Module LIN Bus 8 | K9 Body Control Module |
| U152D | Body Control Module LIN Bus 9 | K9 Body Control Module |
| U152E | Body Control Module LIN Bus 10 | K9 Body Control Module |
| U152F | Body Control Module LIN Bus 11 | K9 Body Control Module |
| U1530 | Body Control Module LIN Bus 12 | K9 Body Control Module |
| U1531 | Body Control Module LIN Bus 13 | K9 Body Control Module |
| U1532 | Body Control Module LIN Bus 14 | K9 Body Control Module |
| U1533 | Body Control Module LIN Bus 15 | K9 Body Control Module |
| U1534 | Body Control Module LIN Bus 16 | K9 Body Control Module |
| U1536 | Passenger Seat Adjuster Memory Module LIN Bus 1 | K40P Passenger Seat Adjuster Memory Module |
| U153A | Virtual Key Module Local Interconnect Network 1 | K183 Near Field Communication Module |
| U1600 | Lost Communication with Transmission Control Module on Engine Control Module LIN Bus 1 | K71 Transmission Control Module |
| U1602 | Lost Communication with Side Obstacle Detection Control Module - Left on CAN Bus 4 | B218L Side Obstacle Detection Control Module - Left |
| U1603 | Lost Communication with Side Obstacle Detection Control Module - Right on CAN Bus 4 | B218R Side Obstacle Detection Control Module - Right |
| U1604 | Lost Communication with Side Obstacle Detection Control Module - Left on Private CAN Bus | B218L Side Obstacle Detection Control Module - Left |
| U1605 | Lost Communication with Side Obstacle Detection Control Module - Right on Private CAN Bus | B218R Side Obstacle Detection Control Module - Right |
| U1607 | Lost Communication with Serial Data Gateway Module on CAN Bus 1 | K56 Serial Data Gateway Module |
| U1608 | Lost Communication with Serial Data Gateway Module on CAN Bus 2 | K56 Serial Data Gateway Module |
| U1609 | Lost Communication with Serial Data Gateway Module on CAN Bus 3 | K56 Serial Data Gateway Module |
| U160A | Lost Communication with Serial Data Gateway Module on CAN Bus 8 | K56 Serial Data Gateway Module |
| U160B | Lost Communication with Parking Assist Control Module on CAN Bus 1 | K182 Parking Assist Control Module |
| U160C | Lost Communication with Parking Assist Control Module on CAN Bus 2 | K182 Parking Assist Control Module |
| U160F | Lost Communication with Brake System Control Module 1 on CAN Bus 1 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U1610 | Lost Communication with Brake System Control Module 1 on CAN Bus 2 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U1611 | Lost Communication with Engine Control Module on CAN Bus 2 | K20 Engine Control Module |
| U1612 | Lost Communication with Hybrid/EV Powertrain Control Module 1 on CAN Bus 2 | K114A Hybrid/EV Powertrain Control Module 1 |
| U1614 | Lost Communication with Image Processing Module 1 - Processor 1 on CAN Bus 1 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U1615 | Lost Communication with Image Processing Module 1 - Processor 1 on CAN Bus 2 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U1616 | Lost Communication with Image Processing Module 1 - Processor 1 on CAN Bus 8 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U1619 | Lost Communication with Engine Control Module on Engine Control Module LIN Bus 1 | K20 Engine Control Module |
| U1623 | Lost Communication with Image Processing Module 1 - Processor 2 on Ethernet Bus | K124AB Image Processing Module 1 - Processor 2 |
| U1624 | Lost Communication with Telematic Control Module on Ethernet Bus | K73 Telematic Control Module |
| U1625 | Lost Communication with Image Processing Module 1 - Processor 1 on Ethernet Bus | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U1626 | Lost Communication with Automated Driving Mapping Module on Ethernet Bus | K179 Automated Driving Mapping Module |
| U1818 | Lost Communication with Engine Control Module on CAN Bus 3 | K20 Engine Control Module |
| U18A2 | Lost Communication with Fuel Pump Power Control Module | K111 Fuel Pump Power Control Module |
| U18A7 | Lost Communication with Power Supply Transformer on Powertrain Expansion CAN Bus | T19 Multifunction Power Supply Converter |
| U18C6 | Gear Shift Control Module Lost Communication with Engine Control Module on Powertrain Sensor CAN Bus | K212 Gear Shift Control Module & K20 Engine Control Module |
| U18C7 | Gear Shift Control Module Lost Communication with Engine Control Module on CAN Bus 3 | K212 Gear Shift Control Module & K20 Engine Control Module |
| U18D2 | Lost Communication with Gear Shift Control Module on Powertrain Sensor CAN Bus | K212 Gear Shift Control Module |
| U18D3 | Lost Communication with Gear Shift Control Module on CAN Bus 3 | K212 Gear Shift Control Module |
| U18E0 | Serial Data Gateway Module Lost Communication with Battery Energy Control Module | K16 Battery Energy Control Module |
| U18E2 | Lost Communication with Multifunction Power Supply Converter on Powertrain Sensor Bus | T19 Multifunction Power Supply Converter |
| U1960 | Message Authentication Keys Missing or Incomplete | N/A |
| U1961 | Control Module Security Hardware Internal Malfunction | N/A |
| U1962 | Unable to Authenticate Serial Data Message | N/A |
| U1970 | Gear Shift Control Module Message Authentication Keys Missing or Incomplete | K212 Gear Shift Control Module |
| U1971 | Gear Shift Control Module Security Hardware Internal Malfunction | K212 Gear Shift Control Module |
| U1972 | Gear Shift Control Module Unable to Authenticate Serial Data Message | K212 Gear Shift Control Module |
| U1977 | ECU Identification Self Learn Not Completed | N/A |
| U1978 | Vehicle Identification Number of First Vehicle Not Programmed | N/A |
| U1979 | Ethernet Time Synchronization Mismatch | N/A |
| U197A | Ethernet Time Synchronization Signal Invalid | N/A |
| U197B | Serial Data Gateway Module Self-Learn Did Not Execute | K56 Serial Data Gateway Module |
| U197C | Serial Data Gateway Module ECU Identification List Memory Fault | K56 Serial Data Gateway Module |
| U197D | Serial Data Gateway Module Self-Learn Invalid Due To VIN Mismatch | K56 Serial Data Gateway Module |
| U197E | Odometer Vehicle Identification Number | N/A |
| U197F | Odometer Value Mismatch | N/A |
| U1982 | Serial Data Gateway Module Message Authentication Keys Missing or Incomplete | K56 Serial Data Gateway Module |
| U1983 | Serial Data Gateway Module Security Hardware Internal Malfunction | K56 Serial Data Gateway Module |
| U1984 | Serial Data Gateway Module Unable To Authenticate Serial Data Message | K56 Serial Data Gateway Module |
| U2000 | Network Configuration List Not Programmed - Body Control Module LIN Bus 1 | K9 Body Control Module |
| U2001 | Network Configuration List Not Programmed - Body Control Module LIN Bus 2 | K9 Body Control Module |
| U2002 | Network Configuration List Not Programmed - Body Control Module LIN Bus 3 | K9 Body Control Module |
| U2003 | Network Configuration List Not Programmed - Body Control Module LIN Bus 4 | K9 Body Control Module |
| U2004 | Network Configuration List Not Programmed - Body Control Module LIN Bus 5 | K9 Body Control Module |
| U2005 | Network Configuration List Not Programmed - Body Control Module LIN Bus 6 | K9 Body Control Module |
| U2006 | Network Configuration List Not Programmed - Body Control Module LIN Bus 7 | K9 Body Control Module |
| U2007 | Network Configuration List Not Programmed - Body Control Module LIN Bus 8 | K9 Body Control Module |
| U2008 | Network Configuration List Not Programmed - Body Control Module LIN Bus 9 | K9 Body Control Module |
| U2009 | Network Configuration List Not Programmed - Body Control Module LIN Bus 10 | K9 Body Control Module |
| U200A | Network Configuration List Not Programmed - Body Control Module LIN Bus 11 | K9 Body Control Module |
| U200B | Network Configuration List Not Programmed - Body Control Module LIN Bus 12 | K9 Body Control Module |
| U200C | Network Configuration List Not Programmed - Body Control Module LIN Bus 13 | K9 Body Control Module |
| U200D | Network Configuration List Not Programmed - Body Control Module LIN Bus 14 | K9 Body Control Module |
| U200E | Network Configuration List Not Programmed - Body Control Module LIN Bus 15 | K9 Body Control Module |
| U200F | Network Configuration List Not Programmed - Body Control Module LIN Bus 16 | K9 Body Control Module |
| U2010 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 1 | K20 Engine Control Module |
| U2011 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 2 | K20 Engine Control Module |
| U2014 | Network Configuration List Not Programmed - Driver Seat Adjuster Memory Module LIN Bus 1 | K40D Driver Seat Adjuster Memory Module |
| U2015 | Network Configuration List Not Programmed - Driver Seat Adjuster Memory Module LIN Bus 2 | K40D Driver Seat Adjuster Memory Module |
| U2016 | Network Configuration List Not Programmed - Passenger Seat Adjuster Memory Module LIN Bus 1 | K40P Passenger Seat Adjuster Memory Module |
| U2017 | Network Configuration List Not Programmed - Passenger Seat Adjuster Memory Module LIN Bus 2 | K40P Passenger Seat Adjuster Memory Module |
| U201E | Network Configuration List Not Programmed - Image Processing Module 1 - Processor 1 - LIN Bus 1 | K124 Image Processing Module / K124AA Image Processing Module 1 - Processor 1 |
| U2021 | Network Configuration List Not Programmed - Instrument Panel Cluster Control Module LIN Bus 1 | P16 Instrument Panel Cluster Control Module |
| U2022 | Network Configuration List Not Programmed - Brake System Control Module 1 LIN Bus 1 | K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U2110 | Network Configuration List Not Programmed - CAN Bus 1 | N/A |
| U216A | Lost Communication with Front Object Detection Control Module | B174W Front View Camera - Windshield |
| U2201 | Gear Shift Control Module Lost Communication with Serial Data Gateway Module | K212 Gear Shift Control Module & K56 Serial Data Gateway Module |
| U2203 | Serial Data Gateway Module Lost Communication with Body Control Module | K56 Serial Data Gateway Module & K9 Body Control Module |
| U2204 | Serial Data Gateway Module Lost Communication with Reductant Control Module | K56 Serial Data Gateway Module & K115 Reductant Control Module |
| U2205 | Serial Data Gateway Module Lost Communication with Power Steering Control Module | K56 Serial Data Gateway Module & K43 Power Steering Control Module |
| U2209 | Serial Data Gateway Module Lost Communication with Heater and Air Conditioning User Interface Control - Front | K56 Serial Data Gateway Module & A26 Heater and Air Conditioning User Interface Control - Front |
| U220A | Serial Data Gateway Module Lost Communication with Heater and Air Conditioning Auxiliary Control | K56 Serial Data Gateway Module & A34 Heater and Air Conditioning Auxiliary Control |
| U220C | Serial Data Gateway Module Lost Communication with Restraints Control Module | K56 Serial Data Gateway Module & K36 Restraints Control Module |
| U220D | Serial Data Gateway Module Lost Communication with Gear Shift Control Module | K56 Serial Data Gateway Module & K212 Gear Shift Control Module |
| U220E | Serial Data Gateway Module Lost Communication with Transfer Case Control Module | K56 Serial Data Gateway Module & K69 Transfer Case Control Module |
| U220F | Serial Data Gateway Module Lost Communication with Transmission Control Module | K56 Serial Data Gateway Module & K71 Transmission Control Module |
| U2211 | Reductant Control Module Lost Communication with Body Control Module | K115 Reductant Control Module & K9 Body Control Module |
| U2212 | Reductant Control Module Lost Communication with Engine Control Module | K115 Reductant Control Module & K20 Engine Control Module |
| U2213 | Reductant Control Module Lost Communication with Serial Data Gateway Module | K115 Reductant Control Module & K56 Serial Data Gateway Module |
| U2215 | Gear Shift Control Module Lost Communication with Body Control Module | K212 Gear Shift Control Module & K9 Body Control Module |
| U221A | Vehicle Dynamic Sensor Lost Communication with Image Processing Module 1 - Processor 2 | B284 Vehicle Dynamic Sensor & K124AB Image Processing Module 1 - Processor 2 |
| U2405 | Gear Shift Control Module Lost Communication with Engine Control Module on CAN Bus 2 | K212 Gear Shift Control Module & K20 Engine Control Module |
| U2413 | Serial Data Gateway Module Communication CAN Bus 2 Off | K56 Serial Data Gateway Module |
| U2418 | Serial Data Gateway Module Lost Communication with Brake System Control Module 1 on CAN Bus 1 | K56 Serial Data Gateway Module & K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U2419 | Serial Data Gateway Module Lost Communication with Brake System Control Module 1 on CAN Bus 2 | K56 Serial Data Gateway Module & K160 Brake System Control Module / K160A Brake System Control Module 1 |
| U241C | Serial Data Gateway Module Lost Communication with Engine Control Module on CAN Bus 2 | K56 Serial Data Gateway Module & K20 Engine Control Module |
| U241D | Serial Data Gateway Module Lost Communication with Engine Control Module on CAN Bus 3 | K56 Serial Data Gateway Module & K20 Engine Control Module |
| U250D | Invalid Data Received from Transmission Control Module on Chassis Control Module LIN Bus 2 | K71 Transmission Control Module |
| U2A90 | Odometer Vehicle Identification Number Not Programmed | N/A |
| U2A91 | Odometer Vehicle Identification Number Invalid Configuration | N/A |
| U3000 | Control Module | N/A |
| U3002 | Vehicle Identification Number | N/A |
| U3034 | Message Authentication Keys Missing or Incomplete | N/A |
| U3035 | Unable to Authenticate Serial Data Message | N/A |