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 .
Control Module U Code List
| DTC | DTC Descriptor |
|---|---|
| U0001 | High Speed CAN Bus Malfunction |
| U0002 | High Speed CAN Bus |
| U0009 | High Speed CAN Bus [-] Shorted to Bus [+] |
| U0020 | Low Speed CAN Bus |
| U0028 | MOST Bus |
| U0029 | MOST Bus Performance |
| U0073 | Control Module Communication Bus A Off |
| Control Module Communication High Speed CAN Bus Off | |
| U0074 | Control Module Communication Bus B Off |
| U0075 | Control Module Communication Object Detection CAN Bus Off |
| U0077 | Control Module Communication Chassis Expansion CAN Bus Off |
| U0078 | Control Module Communication Low Speed CAN Bus Off |
| U007A | Control Module Communication High Voltage Energy Management CAN Bus Off |
| U007B | Control Module Communication High Speed Extension CAN Bus Off |
| U007C | Control Module Communication High Speed Extension CAN Bus 2 Off |
| U007D | Control Module Communication Low Speed Extension CAN Bus Off |
| U007E | Control Module Communication FlexRay 1A Bus Off |
| U007F | Control Module Communication FlexRay 1B Bus Off |
| U0100 | Lost Communication With Engine Control Module |
| U0101 | Lost Communication With Transmission Control Module |
| U0102 | Lost Communication with Transfer Case Control Module |
| U0103 | Lost Communication with Shift Lever Module |
| U0104 | Lost Communication With Cruise Control Module |
| U0105 | Lost Communication with Fuel Injector Control Module |
| U0106 | Lost Communication with Glow Plug Control Module |
| U0109 | Lost Communication with Fuel Pump Control Module (2013 and prior) |
| Lost Communication with Chassis Control Module (2014 and beyond) | |
| U010E | Lost Communication with Reductant Sensor Module |
| U010F | Lost Communication with Air Conditioning Control Module |
| U0111 | Lost Communication with Battery Energy Control Module |
| U0112 | Lost Communication with Battery Energy Control Module |
| U0114 | Lost Communication with Four Wheel Drive Clutch Control Module |
| U0115 | Lost Communication with Engine Control Module B |
| U0117 | Lost Communication With Power Take-Off Control Module |
| U0121 | Lost Communication With Electronic Brake Control Module |
| U0122 | Lost Communication With Vehicle Stability Control Module |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0125 | Lost Communication With Multi-axis Acceleration Sensor Module |
| U0126 | Lost Communication With Steering Wheel Angle Sensor Module |
| U0128 | Lost Communication With Park Brake Control Module |
| U0129 | Lost Communication with Brake System Control Module |
| U012A | Lost Communication With Chassis Control Module |
| U0130 | Lost Communication With Electric Power Steering Control Module |
| U0131 | Lost Communication With Power Steering Control Module |
| U0132 | Lost Communication With Suspension Control Module |
| U0133 | Lost Communication With Air Suspension Control Module |
| U0134 | Lost Communication with Power Steering Control Module - Rear |
| U0136 | Lost Communication With Differential Control Module - Rear |
| U0137 | Lost Communication with Trailer Brake Control Module |
| U0139 | Lost Communication With Suspension Control Module |
| U0140 | Lost Communication With Body Control Module |
| U0146 | Lost Communication with Serial Data Gateway Module |
| U0151 | Lost Communication With Inflatable Restraint Sensing and Diagnostic Module |
| U0155 | Lost Communication With Instrument Cluster |
| U0158 | Lost Communication With Head-Up Display |
| U0159 | Lost Communication With Parking Assist Control Module |
| U0160 | Lost Communication With Chime Alarm Control Module |
| U0164 | Lost Communication with HVAC Control Module |
| U0166 | Lost Communication with Auxiliary Heater Control Module |
| U0167 | Lost Communication with Immobilizer Control Module |
| U0168 | Lost Communication With Keyless Entry Control Module |
| U016B | Lost Communication with Electric A/C Compressor Control Module |
| U0170 | Lost Communication with Passenger Presence Detection Sensor Module |
| U017E | Lost Communication with Seat Belt Retractor Motor Module |
| U0181 | Lost Communication With Headlamp Leveling Control Module |
| U0182 | Lost Communication With Lighting Control Module - Front |
| U0184 | Lost Communication With Radio |
| U0186 | Lost Communication With Speaker Amplifier Module |
| U0196 | Lost Communication With Rear Audio Control Module |
| U0191 | Lost Communication With Television |
| U0193 | Lost Communication With Digital Radio Receiver Control Module |
| U0197 | Lost Communication With Telephone Control Module |
| U0198 | Lost Communication With Telematic Control Module |
| U019E | Lost Communication With Transmission Range Control Module |
| U01A0 | Lost Communication with Hybrid/EV Battery Interface Control Module 1 |
| U01A1 | Lost Communication with Hybrid/EV Battery Interface Control Module 2 |
| U01A2 | Lost Communication with Hybrid/EV Battery Interface Control Module 3 |
| U01A3 | Lost Communication with Hybrid/EV Battery Interface Control Module 4 |
| U01A4 | Lost Communication with Hybrid/EV Battery Interface Control Module 5 |
| U01A5 | Lost Communication with Hybrid/EV Battery Interface Control Module 6 |
| U01A6 | Lost Communication with Hybrid/EV Battery Interface Control Module 7 |
| U01A7 | Lost Communication with Hybrid/EV Battery Interface Control Module 8 |
| U01B0 | Lost Communication with Battery Monitor Module |
| U01B4 | Lost Communication with Brake System Control Module 2 |
| U0201 | Lost Communication With Transfer Case Control Module |
| U0203 | Lost Communication With Left Rear Door Switch Panel Control Module |
| U0204 | Lost Communication With Right Rear Door Switch Panel Control Module |
| U0207 | Lost Communication With Moveable Roof Control Module |
| U0208 | Lost Communication with Seat Memory Control Module |
| U0209 | Lost Communication With Front Seat Heating Control Module |
| U0210 | Lost Communication With Rear Seat Heating Control Module |
| U0230 | Lost Communication With Liftgate Control Module |
| U0231 | Lost Communication with Rain Sensor Module |
| U0232 | Lost Communication with Side Object Detection Control Module - Left |
| U0233 | Lost Communication with Side Object Detection Control Module - Right |
| U0236 | Lost Communication With Steering Column Lock Module |
| U0237 | Lost Communication With Multimedia Player Interface Module |
| U023A | Lost Communication With Vehicle Direction Camera Control Module (without UGN) |
| Lost Communication With Active Safety Control Module 1 (with UGN) | |
| U023C | Lost Communication with Night Vision Camera Control Module |
| U0241 | Lost Communication With Left Headlamp High Beam Control Module |
| U0242 | Lost Communication With Right Headlamp High Beam Control Module |
| U0248 | Lost Communication with Remote Accessory Module |
| U0249 | Lost Communication with Entertainment Control Module - Rear |
| U0250 | Lost Communication with Impact Classification System Module |
| U0252 | Lost Communication With Trailer Interface Control Module |
| U0253 | Lost Communication with Accessory Protocol Interface Module |
| U0254 | Lost Communication With Remote Start Module |
| U0255 | Lost Communication With Info Display Module |
| U0256 | Lost Communication With Infotainment Faceplate Control Module |
| U0257 | Lost Communication With Info Display Module/Infotainment Faceplate Control Module |
| U025B | Lost Communication with Special Purpose Vehicle Control Module "C" |
| U0264 | Lost Communication With Camera Module - Rear |
| U0265 | Lost Communication with Left Front Short Range Radar Sensor Module |
| U0268 | Lost Communication with Right Front Short Range Radar Sensor Module |
| U0269 | Lost Communication with Front Long Range Object Sensor |
| U026A | Lost Communication with Frontview Camera Module |
| U026B | Lost Communication with Rear Short Range Object Sensor |
| Lost Communication with Left Rear Short Range Radar Sensor Module | |
| U026C | Lost Communication with Right Rear Short Range Radar Sensor Module |
| U026D | Lost Communication with Rear Middle Short Range Radar Sensor Module |
| U0293 | Lost Communication with Hybrid/EV Powertrain Control Module |
| U0298 | Lost Communication with DC/DC Converter Control Module |
| U029D | Lost Communication with NOx Sensor 1 Module |
| U029E | Lost Communication with NOx Sensor 2 Module |
| U02A3 | Lost Communication With Particulate Matter Sensor Module |
| U0301 | Software Incompatibility with Engine Control Module |
| U0302 | Software Incompatibility with Transmission Control Module |
| U0305 | Software Incompatibility With Cruise Control Module |
| U0315 | Software Incompatibility with Electronic Brake Control Module |
| U031C | Software Incompatibility With Brake System Control Module 2 |
| U0401 | Invalid Data Received From Engine Control Module |
| U0402 | Invalid Data Received From Transmission Control Module |
| U0403 | Invalid Data Received From Transfer Case Control Module |
| U0405 | Invalid Data Received From Cruise Control Module |
| U0414 | Invalid Data Received From Four Wheel Drive Clutch Control Module |
| U0415 | Invalid Data Received From Electronic Brake Control Module |
| U0416 | Invalid Data Received From Vehicle Dynamics Control Module |
| U0417 | Invalid Data Received From Park Brake Control Module |
| U0418 | Invalid Data Received From Brake System Control Module |
| U0420 | Invalid Data Received From Power Steering Control Module |
| U0421 | Invalid Data Received From Suspension Control Module |
| U0422 | Invalid Data Received From Body Control Module |
| U0423 | Invalid Data Received From Instrument Cluster |
| U0424 | Invalid Data Received From HVAC Control Module |
| U0428 | Invalid Data Received From Steering Wheel Angle Sensor Module |
| U042B | Invalid Data Received From Chassis Control Module |
| U0431 | Invalid Data Received From Body Control Module "A" |
| U0432 | Invalid Data Received From Multi-axis Acceleration Sensor Module |
| U0437 | Invalid Data Received From Differential Control Module - Rear |
| U0438 | Invalid Data Received From Trailer Brake Control Module |
| U0447 | Invalid Data Received from Central Gateway Module |
| U0452 | Invalid Data Received From Inflatable Restraint Sensing and Diagnostic Module |
| U045A | Invalid Data Received From Parking Assist Control Module "A" |
| U0465 | Invalid Data Received From Power Take-Off Control Module |
| U0499 | Invalid Data Received From Telematics Communication Interface Control Module |
| U0513 | Invalid Data Received From Yaw Rate Sensor Module |
| U053B | Invalid Data Received From Active Safety Control Module 1 |
| U053C | Invalid Data Received From Active Safety Control Module 2 |
| U056B | Invalid Data Received From Frontview Camera Module |
| U0594 | Invalid Data Received From Hybrid/EV Powertrain Control Module |
| U063E | Lost Communication with Exhaust Heat Exchanger Bypass Valve "A" Actuator |
| U1343 | Chassis Control Module LIN Bus 1 |
| U1345 | Engine Control Module LIN Bus 1 |
| U1347 | Engine Control Module LIN Bus 3 |
| U1359 | Lost Communication with Transmission Range Indicator |
| U135A | Lost Communication with Shift to Park Range Actuator |
| U135B | Lost Communication with Sunload Sensor |
| U135C | Lost Communication with Start-Stop Capacitor Control Module |
| U135D | Lost Communication with Transmission Control Module on Chassis Control Module LIN Bus 2 |
| U135E | Lost Communication with Transmission Control Module on Engine Control Module LIN Bus 1 |
| U1501 | LIN Bus |
| U1502 | LIN Bus |
| U1505 | LIN Bus |
| U1509 | LIN Bus |
| A26 HVAC Controls / P17 Info Display Module Lost Communication with K33 HVAC Control Module on LIN Bus | |
| U150E | LIN Bus |
| A22 Radio Controls / P17 Info Display Module Lost Communication with A11 Radio on LIN Bus | |
| U150F | LIN Bus |
| A22 Radio Controls / P17 Info Display Module Lost Communication with K74 Human Machine Interface Control Module on LIN Bus | |
| K161 Vehicle Performance Data Recorder Lost Communication with K74 Human Machine Interface Control Module on LIN Bus | |
| U1510 | A11 Radio Lost Communication with A20 Radio/HVAC Control / P17 Info Display Module on LIN Bus |
| K9 Body Control Module Lost Communication with B67 Ultrasonic Intrusion Sensor / B165 Content Theft Deterrent Sensor Module on LIN Bus | |
| K20 Engine Control Module Lost Communication with M96 Active Grille Air Shutter Actuator / M60A Active Grille Air Shutter 1 Motor Module on LIN Bus | |
| K33 HVAC Control Module Lost Communication with A26 HVAC Controls / A20 Radio/HVAC Controls / P17 Info Display Module on LIN Bus | |
| K33 HVAC Control Module Lost Communication with A34 HVAC Controls - Auxiliary on LIN Bus | |
| K39 Liftgate Control Module Lost Communication with K171 Hands-Free Liftgate Sensor Control Module / S45A Liftgate Control Switch - Exterior on LIN Bus | |
| P16 Instrument Cluster Lost Communication with S70D Steering Wheel Controls Switch - Right Upper / S70R Steering Wheel Controls Switch - Right on LIN Bus | |
| U1511 | K20 Engine Control Module Lost Communication with M60B Active Grille Air Shutter 2 Motor Module on LIN Bus |
| K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13L Headlamp - Left on LIN Bus | |
| K40 Seat Memory Control Module Lost Communication with K99 Steering Column Position Control Module on LIN Bus | |
| U1512 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13R Headlamp - Right on LIN Bus |
| U1513 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13L Headlamp - Left on LIN Bus |
| U1514 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13R Headlamp - Right on LIN Bus |
| K33 HVAC Control Module Lost Communication with A34 HVAC Controls - Auxiliary on LIN Bus | |
| U1515 | K9 Body Control Module Lost Communication with M75 Windshield Wiper Motor / M75L Windshield Wiper Motor Module - Left on LIN Bus |
| U1516 | K9 Body Control Module Lost Communication with B110 Battery Sensor Module on LIN Bus |
| U1517 | K9 Body Control Module Lost Communication with K62 Sunroof Sunshade Motor Module on LIN Bus |
| U1518 | P16 Instrument Cluster Lost Communication with K78 Head-Up Display Module / P29 Head-Up Display on LIN Bus |
| U1519 | K40 Seat Memory Control Module Lost Communication with S52 Outside Rearview Mirror Switch on LIN Bus |
| K40 Seat Memory Control Module Lost Communication with K96 Mirror Control Module / K96D Mirror Control Module - Driver / K96L Mirror Control Module - Left on LIN Bus | |
| U151A | K9 Body Control Module Lost Communication with B117 Rain Sensor / B177 Rain/Ambient Light Sensor Module / B200 Rain Sensor Module on LIN Bus |
| U151B | K9 Body Control Module Lost Communication with K61 Sunroof Control Module on LIN Bus |
| K40 Seat Memory Control Module Lost Communication with S79P Window Switch - Passenger on LIN Bus | |
| U151C | K33 HVAC Control Module Lost Communication with A34 HVAC Controls - Auxiliary / K33A HVAC Control Module - Auxiliary on LIN Bus |
| U1520 | K9 Body Control Module Lost Communication with P4 Security Siren / P25 Power Sounder Content Theft Deterrent Alarm Module on LIN Bus |
| K33 HVAC Control Module Lost Communication with M6CR Air Temperature Door Actuator - Center Console Right Auxiliary on LIN Bus | |
| K40D Seat Memory Control Module - Driver Lost Communication with K134D Seat Bolster Memory Control Module - Driver on LIN Bus | |
| K40P Seat Memory Control Module - Passenger Lost Communication with K134P Seat Bolster Memory Control Module - Passenger on LIN Bus | |
| U1521 | K9 Body Control Module Lost Communication with S48E Multifunction Switch - Center Console on LIN Bus |
| K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13L Headlamp - Left on LIN Bus | |
| U1522 | K9 Body Control Module Lost Communication with K65 Tire Pressure Indicator Module / B178 Tire Pressure Sensor Locator Module on LIN Bus |
| K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13R Headlamp - Right on LIN Bus | |
| K33 HVAC Control Module Lost Communication with M6UR Air Temperature Door Actuator - Right Upper Auxiliary on LIN Bus | |
| U1523 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13L Headlamp - Left on LIN Bus |
| U1524 | K9 Body Control Module Lost Communication with K29 Seat Heating Control Module / K29F Seat Heating Control Module - Front on LIN Bus |
| K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13R Headlamp - Right on LIN Bus | |
| K33 HVAC Control Module Lost Communication with K10 Coolant Heater Control Module on LIN Bus | |
| U1525 | K33 HVAC Control Module Lost Communication with K10 Coolant Heater Control Module on LIN Bus |
| U1526 | K9 Body Control Module Lost Communication with K29R Seat Heating Control Module - Rear on LIN Bus |
| U1528 | K33 HVAC Control Module Lost Communication with M37B Mode Door Actuator - Auxiliary on LIN Bus |
| K40D Seat Memory Control Module - Driver Lost Communication with S64D Seat Adjuster Switch - Driver on LIN Bus | |
| K40P Seat Memory Control Module - Passenger Lost Communication with S64P Seat Adjuster Switch - Passenger on LIN Bus | |
| U152A | K33 HVAC Control Module Lost Communication with M6UL Air Temperature Door Actuator - Left Upper Auxiliary on LIN Bus |
| U152C | K9 Body Control Module Lost Communication with K18 Compass Module on LIN Bus |
| K33 HVAC Control Module Lost Communication with V1 Air Ionizer on LIN Bus | |
| U152D | K9 Body Control Module Lost Communication with P2 Transmission Shift Lever Position Indicator on LIN Bus |
| U1530 | K9 Body Control Module Lost Communication with M35P Window Motor Module - Passenger / M74P Window Motor - Passenger on LIN Bus |
| U1531 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13LA Headlamp Assembly - Left on LIN Bus |
| U1532 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13RA Headlamp Assembly - Right on LIN Bus |
| U1534 | K9 Body Control Module Lost Communication with M74D Window Motor - Driver on LIN Bus |
| U1538 | K9 Body Control Module Lost Communication with S79D Window Switch - Driver / S146 Window/Outside Rearview Mirror Switch - Driver on LIN Bus |
| U153A | K9 Body Control Module Lost Communication with S79P Window Switch - Passenger on LIN Bus |
| U1540 | K9 Body Control Module Lost Communication with M74RR Window Motor - Right Rear on LIN Bus |
| U1544 | K9 Body Control Module Lost Communication with M74LR Window Motor - Left Rear on LIN Bus |
| U1548 | K9 Body Control Module Lost Communication with S79LR Window Switch - Left Rear on LIN Bus |
| U1549 | K9 Body Control Module Lost Communication with M45 Rear Wiper Motor on LIN Bus |
| U154A | K9 Body Control Module Lost Communication with S79RR Window Switch - Right Rear on LIN Bus |
| U154B | K9 Body Control Module Lost Communication with K49 Rear Seat Control Module on LIN Bus |
| U1550 | K9 Body Control Module Lost Communication with S31D Seat Heating and Cooling Switch - Driver on LIN Bus |
| U1551 | K9 Body Control Module Lost Communication with K33 HVAC Control Module on LIN Bus |
| U1555 | K9 Body Control Module Lost Communication with S100LR Seat Heating/Venting/Cooling Switch - Left Rear on LIN Bus |
| U1556 | K38 Chassis Control Module Lost Communication with K133 Trailer Brake Power Control Module on LIN Bus |
| U1558 | K9 Body Control Module Lost Communication with S31P Seat Heating and Cooling Switch - Passenger on LIN Bus |
| U1559 | K9 Body Control Module Lost Communication with K183 Short Range Remote Control Transceiver on LIN Bus |
| U155D | K9 Body Control Module Lost Communication with S100RR Seat Heating/Venting/Cooling Switch - Right Rear on LIN Bus |
| U156D | K38 Chassis Control Module Lost Communication with S3 Transmission Shift Lever on LIN Bus |
| U15E1 | A11 Radio Lost Communication with A26 HVAC Controls / P17 Info Display Module on LIN Bus |
| U15F0 | K74 Human Interface Control Module Lost Communication with P17 Info Display Module on LIN Bus |
| U15F1 | K74 Human Interface Control Module Lost Communication with K188 Human Machine Interface Control Module Bypass Module on LIN Bus |
| U1653 | Chassis Systems High Speed Communication Enable Circuit |
| U1725 | Left Headlamp High Beam Control Module Lost Communication with Left Headlamp Low Beam Control Module |
| U1726 | Right Headlamp High Beam Control Module Lost Communication with Right Headlamp Low Beam Control Module |
| U1727 | Right Headlamp High Beam Control Module Lost Communication with Right Headlamp Leveling Actuator |
| U1728 | Left Headlamp High Beam Control Module Lost Communication with Left Headlamp Leveling Actuator |
| U1729 | Right High Beam Control Module Lost Communication with Right Headlamp Horizontal Motor |
| U172A | Left High Beam Control Module Lost Communication with Left Headlamp Horizontal Motor |
| U1793 | 14V Power Module Lost Communication with Hybrid/EV Powertrain Control Module on Powertrain Expansion Communication Bus |
| U1795 | 14V Power Module Powertrain Expansion Communication Bus Off |
| U179A | Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U179C | Lost Communication with One or More Hybrid/EV Battery Interface Control Modules |
| U179D | Lost Communication with Brake System Control Module 2 on Chassis Expansion Bus |
| U1803 | Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U1804 | Lost Communication with Inside Rearview Mirror Control Module |
| U1806 | Battery Energy Control Module High Voltage Energy Management CAN Bus Off |
| U1807 | Battery Charger Control Module High Voltage Energy Management CAN Bus Off |
| U180A | Electric A/C Compressor Control Module High Speed CAN Bus Off |
| U180B | Battery Energy Control Module High Speed CAN Bus Off |
| U180C | Battery Charger Control Module High Speed CAN Bus Off |
| U180D | Electronic Brake Control Module Chassis Expansion CAN Bus Off |
| U1811 | Battery Energy Control Module Powertrain Expansion CAN Bus Off |
| U1814 | Powertrain Wake-Up Communication Circuit |
| U1815 | Lost Communication with Drive Motor Control Module 1 on Bus B |
| U1816 | Lost Communication with Drive Motor Control Module B on Bus B |
| U1817 | Lost Communication with Hybrid/EV Powertrain Control Module on Powertrain Expansion CAN Bus |
| U1818 | Lost Communication with Engine Control Module on Powertrain Expansion Communication Bus |
| U1821 | Lost Communication with 14V Power Module on Powertrain Expansion Communication Bus |
| U1826 | Lost Communication with Multi-Axis Acceleration Sensor Module on Powertrain Expansion CAN Bus |
| U1827 | Lost Communication with Steering Angle Sensor Module on Powertrain Expansion CAN Bus |
| U182A | Hybrid/EV Powertrain Control Module Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus |
| U182D | Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| U182E | Drive Motor Control Module 1 Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| U182F | Drive Motor Control Module 2 Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| U1831 | Drive Motor Control Module 1 Lost Communication with Hybrid/EV Powertrain Control Module on Powertrain Expansion CAN Bus |
| U1833 | Lost Communication with Electronic Brake Control Module on Chassis Expansion CAN Bus |
| U1838 | Lost Communication with Battery Charger Control Module on High Voltage Energy Management CAN Bus |
| U1839 | Auxiliary Transmission Fluid Pump Control Module Lost Communication with Engine Control Module |
| U183A | Lost Communication with Telematics Communication Interface Control Module on High Speed CAN Bus |
| U183B | Auxiliary Transmission Fluid Pump Control Module Lost Communication with Transmission Control Module |
| U183C | Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 on Powertrain Expansion Communication Bus |
| U183E | Lost Communication with Telematics Communication Interface Control Module on Low Speed CAN Bus |
| U1844 | Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module on Bus B |
| U1845 | Drive Motor Control Module 1 Lost Communication with Hybrid/EV Powertrain Control Module |
| U1846 | Drive Motor Control Module 2 Lost Communication with Hybrid/EV Powertrain Control Module |
| U1847 | Drive Motor Control Module 1 Lost Communication with Battery Energy Control Module on Powertrain Expansion CAN Bus |
| U1849 | Drive Motor Control Module 1 Lost Communication with Transmission Control Module |
| U184A | Lost Communication with Body Control Module on Low Speed CAN Bus |
| U184B | Lost Communication with Remote Heater and Air Conditioning Control Module on Low Speed CAN Bus |
| U184C | Lost Communication with Instrument Cluster on Low Speed CAN Bus |
| U184D | Lost Communication with Radio on Low Speed CAN Bus |
| U184E | Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus |
| U184F | Electric A/C Compressor Control Module Lost Communication with Engine Control Module |
| U1850 | Drive Motor Control Module 2 Lost Communication with Transmission Control Module |
| U1858 | Electronic Brake Control Module Lost Communication with Hybrid/EV Powertrain Control Module on Chassis Expansion CAN Bus |
| U185A | Lost Communication with Battery Energy Control Module on High Voltage Energy Management CAN Bus |
| U185B | Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 on High Voltage Energy Management CAN Bus |
| U185C | Battery Charger Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 on High Voltage Energy Management CAN Bus |
| U185D | Fuel Injector Control Module Lost Communication with Engine Control Module |
| U185E | Fuel Injector Control Module Lost Communication with Body Control Module |
| U1860 | Electric A/C Compressor Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U1861 | Battery Charger Control Module Lost Communication with Engine Control Module |
| U186A | Electronic Brake Control Module Lost Communication with Engine Control Module |
| U186B | Electronic Brake Control Module Lost Communication with Transmission Control Module |
| U1875 | Drive Motor Control Module 1 Lost Communication with Battery Energy Control Module |
| U1876 | Drive Motor Control Module 1 Lost Communication with Engine Control Module |
| U1879 | Drive Motor Control Module 2 Lost Communication with Engine Control Module |
| U1885 | Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module |
| U1886 | Battery Energy Control Module Lost Communication with Engine Control Module |
| U1888 | Hybrid/EV Powertrain Control Module Lost Communication with Battery Energy Control Module |
| U18A1 | Lost Communication with Coolant Temperature Control Module on High Voltage Energy Management CAN Bus |
| U18A2 | Lost Communication with Fuel Pump Driver Control Module |
| U18A3 | Lost Communication with Human Machine Interface Control Module |
| U18A4 | Lost Communication with Hybrid/EV Battery DC Charging Communications Gateway Module on High Voltage Energy Management CAN Bus |
| U18A5 | Lost Communication with Fuel Injector Control Module on Powertrain Expansion CAN Bus |
| U18A6 | Lost Communication with Right Object Detection Control Module on Dedicated Bus 1 |
| U18A7 | Lost Communication with Power Supply Transformer on Powertrain Expansion CAN Bus |
| U18A9 | Lost Communication With Transmission Range Control Module on Chassis Expansion CAN Bus |
| U18AA | Transmission Range Control Module Lost Communication with Engine Control Module |
| U18AB | Transmission Range Control Module Lost Communication with Chassis Control Module on High Speed CAN Bus |
| U18AC | Transmission Range Control Module Lost Communication with Chassis Control Module on Chassis Expansion CAN Bus |
| U18AD | Transmission Range Control Module Lost Communication with Electronic Brake Control Module on Chassis Expansion CAN Bus |
| U18AE | Lost Communication with Infotainment Control Touchpad on Dedicated Bus 1 |
| U18AF | Lost Communications With Telematics Communications Interface Control Module on Ethernet Bus |
| U18B0 | Lost Communications With Instrument Cluster on Ethernet Bus |
| U18B1 | Lost Communications With Audio Amplifier on Ethernet Bus |
| U18B2 | Lost Communication with Rear Audio Control Module on Ethernet Bus |
| U18B3 | Lost Communications With Navigation Control Module on Ethernet Bus |
| U18B4 | Lost Communication with Radio on Ethernet Bus |
| U18B5 | Lost Communication With Hybrid Powertrain Control Module on Chassis Expansion CAN Bus |
| U18B9 | Primary High Speed CAN Bus Subnet Configuration List |
| U18BF | Secondary High Speed CAN Bus Subnet Configuration List |
| U18CA | Lost Communication with Active Safety Control Module 1 on Flexray Bus |
| U18CB | Lost Communication with Active Safety Control Module 2 on Flexray Bus |
| U1900 | Lost Communication With Speech to Text Interface Module |
| U1901 | Lost Communication with Infotainment Multifunction Switch Module |
| U2098 | MOST Communication Enable Circuit |
| U2099 | High Speed Communication Enable Circuit |
| U209E | Object Detection Control Module High Speed Communication Enable Circuit 1 |
| U209F | Object Detection Control Module High Speed Communication Enable Circuit 2 |
| U2100 | CAN Bus Communication |
| U2101 | CAN Bus Maximum List of Control Modules |
| U2103 | Fewer Controllers On Bus Than Programmed |
| U2105 | Lost Communication with Engine Control Module |
| U2106 | Lost Communication with Transmission Control Module |
| U2107 | Lost Communication with Body Control Module |
| U2108 | Lost Communication with Electronic Brake Control Module |
| U2125 | Lost Communication with Telematic Unit |
| U2127 | Lost Communication with Front HVAC Control Module |
| U2139 | Lost Communication with Column Integration Module |
| U2144 | Lost Communication with Distance Sensing Cruise Control Module |
| U216A | Lost Communication with Front Object Detection Control Module |
| U216B | Lost Communication with Rear Object Detection Control Module |
| U2176 | Lost Communication with Power Take-Off Control Module |
| U2178 | Lost Communication With Trailer Interface Control Module |
| U2400 | Fuel Injector Control Module High Speed CAN Bus Off |
| U2401 | Battery Energy Control Module Dedicated Bus 1 Off |
| U2409 | Transmission Range Control Module High Speed CAN Bus Off |
| U240A | Transmission Range Control Module Chassis Expansion CAN Bus Off |
| U2501 | Invalid Data Received From Hybrid/EV Powertrain Control Module 2 |
| U2502 | Invalid Data Received From Electronic Brake Control Module on Chassis Expansion CAN Bus |
| U2503 | Invalid Data Received From Object Detection Control Module |
| U2504 | Invalid Data Received From Trailer Brake Driver Control Module |
| U2505 | Invalid Data Received from Human Machine Interface Control Module on MOST Bus |
| U2506 | Invalid Data Received From Dual Battery Control Module |
| U2507 | Invalid Data Received from Instrument Cluster on MOST Bus |
| U2508 | Invalid Data Received from Audio Amplifier on MOST Bus |
| U250D | Invalid Data Received from Transmission Control Module on Chassis Control Module LIN Bus 2 |
| U2602 | Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U2603 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 1 |
| U2604 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 2 |
| U2605 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 3 |
| U2606 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 4 |
| U2608 | Electric A/C Compressor Control Module Lost Communication with Hybrid/EV Powertrain Control Module |
| U2609 | Battery Charger Control Module Lost Communication with Hybrid/EV Powertrain Control Module |
| U2611 | Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid/EV Powertrain Control Module |
| U2612 | Battery Charger Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U2613 | Drive Motor 1 Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U2614 | Drive Motor 2 Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U2615 | Auxiliary Transmission Fluid Pump Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U2616 | Fuel Pump Driver Control Module Lost Communication with ECM |
| U2617 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 5 |
| U2618 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 6 |
| U2619 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 7 |
| U2620 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 8 |
| U2621 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 9 |
| U2622 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 10 |
| U2623 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 11 |
| U2624 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 12 |
| U2625 | Battery Energy Control Module Lost Communication with Hybrid/EV Battery Interface Control Module 13 |
| U3000 | Control Module |
| U3001 | Control Module Improper Shutdown Performance |
| U3012 | Control Module Improper Wake-up Perfomance |