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 |
| Control Module Communication Powertrain Expansion CAN Bus Off | |
| U0075 | Control Module Communication Object Detection CAN Bus Off |
| U0076 | Control Module Communication Powertrain Sensor 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) | |
| U010C | Lost Communication with Turbocharger Boost Control Module |
| U010E | Lost Communication with Reductant Sensor Module |
| U010F | Lost Communication with Air Conditioning Control Module |
| U0110 | Lost Communication with Drive Motor 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 |
| Lost Communication with Brake System 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 |
| U012B | Lost Communication with Chassis Control Module - Auxiliary |
| U0130 | Lost Communication With 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 2 |
| 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 |
| U0154 | Lost Communication with Passenger Presence 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 Automatic 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 Telematics Communication Interface 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 Passenger Door Switch Panel 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) | |
| U023B | Lost Communication with Active Safety Control Module 2 |
| 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 Rear Seat Entertainment Control Module |
| 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 |
| U0259 | Lost Communication with Special Purpose Vehicle Control Module |
| U025B | Lost Communication with Special Purpose Vehicle Control Module "C" |
| U025C | Lost Communication with Special Purpose Vehicle Control Module "D" |
| U0264 | Lost Communication With Camera Module - Rear |
| U0265 | Lost Communication with Left Front Short Range Radar Sensor Module |
| U0266 | Lost Communication with Night Vision Camera |
| 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 |
| U0284 | Lost Communication with Active Grille Air Shutter 1 Motor Module |
| U0285 | Lost Communication with Active Grille Air Shutter 2 Motor 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 |
| U02A9 | Lost Communication with Charge Air Cooler Coolant Pump |
| 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 |
| U0411 | Invalid Data Received From Drive Motor Control Module |
| U0412 | Invalid Data Received From Battery Energy 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 |
| U0435 | Invalid Data Received From Power Steering Control Module - Rear |
| U0436 | Invalid Data Received From Differential Control Module - Front |
| 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 |
| U0601 | Lost Communication with Particulate Filter Differential Pressure Sensor Circuit Bank 1 |
| U0602 | Lost Communication with Particulate Filter Differential Pressure Sensor Circuit Bank 2 |
| U0606 | Lost Communication With Throttle Position Sensor 1 |
| U0607 | Lost Communication With Throttle Position Sensor 2 |
| U0608 | Lost Communication With Throttle Position Sensor Bank 2 Sensor 1 |
| U060F | Lost Communication with Mass Air Flow (MAF) Sensor Bank 1 |
| U0611 | Lost Communication With Intake Air Temperature Sensor 1 - Bank 1 |
| U0612 | Lost Communication With Intake Air Temperature Sensor 1 - Bank 2 |
| U0615 | Lost Communication with Engine Coolant Bypass Valve |
| U0617 | Lost Communication With Engine Coolant Bypass Valve "C" |
| U0625 | Lost Communication With Fuel Rail Pressure Sensor Bank 1 |
| U062F | Loss Communication with Low Temperature Loop Coolant Pump |
| U0632 | Lost Communication with Engine Cooling Fan |
| U063E | Lost Communication with Exhaust Heat Exchanger Exhaust Bypass Valve |
| U063F | Lost Communication With Engine Coolant Flow Control Valve Position Sensor |
| U0643 | Lost Communication With Turbocharger Wastegate Actuator Temperature Sensor Bank 1 |
| U0644 | Lost Communication With Turbocharger Wastegate Position Sensor |
| U0646 | Lost Communication with Motor Electronics Coolant Pump "A" |
| U064F | Lost Communication With Intake Manifold Runner Control Valve Position Sensor |
| U0650 | Lost Communication With Exhaust Pressure Control Valve "A" Sensor/Switch |
| U0653 | Lost Communication with Exhaust Gas Recirculation 2 Position Sensor |
| U0656 | Lost Communication with Turbocharger Boost Control Position Sensor |
| U0657 | Lost Communication with Turbocharger/Supercharger Bypass Valve "A" Position Sensor |
| U0672 | Lost Communication with Engine Coolant Pump |
| U0674 | Lost Communication With Turbocharger Wastegate Position Sensor Bank 2 |
| U0680 | Lost Communication With Barometric Pressure Sensor Bank 2 Sensor 1 |
| U0688 | Lost Communication With Throttle Position Sensor Bank 2 Sensor 2 |
| U0689 | Lost Communication With Turbocharger Wastegate Actuator Temperature Sensor Bank 2 |
| U068A | Lost Communication With Barometric Pressure Sensor 2 |
| U101B | Lost Communication With Fuel Rail Pressure Sensor Bank 1 Sensor 2 |
| U1032 | Lost Communication with Vehicle Dynamic Sensor 1 |
| U1033 | Lost Communication with Vehicle Dynamic Sensor 2 |
| U1067 | Lost Communication with Digital Map Control Module |
| U1069 | Lost Communication with Driver Monitoring System Control Module |
| U106A | Lost Communication with Multifunction Energy Storage Capacitor Control Module |
| U106B | Lost Communication with Multifunction Battery Isolator Control Module |
| U1112 | Lost Communication with Left Headlamp Leveling Device |
| U1113 | Lost Communication with Right Headlamp Leveling Device |
| U1114 | Lost Communication with Left Headlamp Vertical Motor |
| U1115 | Lost Communication with Right Headlamp Vertical Motor |
| U111A | Lost Communication with Engine Block Coolant Valve |
| U111E | Lost Communication with EVAP Purge Pump |
| U1343 | Chassis Control Module LIN Bus 1 |
| U1345 | Engine Control Module LIN Bus 1 (or Bus 21) |
| U1346 | Engine Control Module LIN Bus 2 (or Bus 22) |
| U1347 | Engine Control Module LIN Bus 3 |
| U1348 | Engine Control Module LIN Bus 4 (or Bus 24) |
| U1349 | Engine Control Module LIN Bus 5 |
| 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 | |
| K124B Active Safety Control Module 2 Lost Communication with P51 Lane Centering Indicators - Steering Wheel on LIN Bus | |
| K160 Brake System Control Module Lost Communication with B80 Park Brake Switch 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 | |
| K183 UHF Short Range Low Energy Remote Control Access Transceiver Lost Communication with B342A UHF Low Energy Remote Control Access Sensor Transceiver 1 on LIN Bus | |
| U1512 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13R Headlamp - Right on LIN Bus |
| K124B Active Safety Control Module 2 Lost Communication with K187 Steering Column Friction Control Module on LIN Bus | |
| K183 UHF Short Range Low Energy Remote Control Access Transceiver Lost Communication with B342B UHF Low Energy Remote Control Access Sensor Transceiver 2 on LIN Bus | |
| U1513 | K26 Headlamp Control Module / K28 Headlamp Leveling Control Module Lost Communication with E13L Headlamp - Left on LIN Bus |
| K183 UHF Short Range Low Energy Remote Control Access Transceiver Lost Communication with B342C UHF Low Energy Remote Control Access Sensor Transceiver 3 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 | |
| K183 UHF Short Range Low Energy Remote Control Access Transceiver Lost Communication with B342D UHF Low Energy Remote Control Access Sensor Transceiver 4 on LIN Bus | |
| U1515 | K9 Body Control Module Lost Communication with M75 Windshield Wiper Motor / M75L Windshield Wiper Motor Module - Left on LIN Bus |
| K183 UHF Short Range Low Energy Remote Control Access Transceiver Lost Communication with B342E UHF Low Energy Remote Control Access Sensor Transceiver 5 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 / S146 Window/Outside Rearview Mirror Switch - Driver 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 |
| K38A Chassis Control Module - Auxiliary Lost Communication with S76 Trailer Brake Control Switch on LIN Bus | |
| U151F | A11 Radio Lost Communication with A20 Radio/HVAC Controls / A22 Radio Controls / P17 Info Display Module 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 | |
| K160 Brake System Control Module Lost Communication with K133 Trailer Brake Power 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 |
| U152B | K33 HVAC Control Module Lost Communication with K32 Steering Wheel Heating Control Module on LIN Bus |
| U152C | K9 Body Control Module Lost Communication with K18 Compass Module on LIN Bus |
| U152C | K9 Body Control Module Lost Communication with K18 Compass Module on LIN Bus |
| K160 Brake System Control Module Lost Communication with S76 Trailer Brake Control Switch on LIN Bus | |
| U152D | K9 Body Control Module Lost Communication with P2 Transmission Shift Lever Position Indicator on LIN Bus |
| K33 HVAC Control Module Lost Communication with V1 Air Ionizer 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 / K38A Chassis Control Module - Auxiliary 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 Machine Interface Control Module Lost Communication with P17 Info Display Module on LIN Bus |
| A11 Radio Lost Communication with A20 Radio/HVAC Controls / A22 Radio Controls / P17 Info Display Module on LIN Bus | |
| U15F1 | K74 Human Machine Interface Control Module Lost Communication with K188 Human Machine Interface Control Module Bypass Module on LIN Bus |
| U15F3 | K74 Human Machine Interface Control Module Lost Communication with K31 Navigation Control 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 Powertrain Expansion CAN Bus |
| U1816 | Lost Communication with Drive Motor Control Module 2 on Powertrain Expansion CAN Bus |
| 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 | 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 |
| U1862 | Battery Energy Control Module Lost Communication with Central Gateway 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 |
| U18B6 | Lost Communication with Active Safety Control Module 1 on Chassis Expansion CAN Bus |
| U18B7 | Lost Communication with Active Safety Control Module 2 on Chassis Expansion CAN Bus |
| U18B8 | Lost Communication with Body Control Module on High Speed CAN Bus |
| U18B9 | Primary High Speed CAN Bus Subnet Configuration List |
| U18BA | Lost Communication with Power Steering Control Module on High Speed CAN Bus |
| U18BB | Lost Communication with Power Steering Control Module on Chassis Expansion CAN Bus |
| U18BF | Secondary High Speed CAN Bus Subnet Configuration List |
| U18C0 | Lost Communication with Suspension Control Module on High Speed CAN Bus |
| U18C1 | Lost Communication with Suspension Control Module on Chassis Expansion CAN Bus |
| U18C2 | Lost Communication with Frontview Camera Module on Flexray Bus |
| U18C3 | Lost Communication with Video Processing Control Module on High Speed CAN Bus |
| U18C4 | Lost Communication with Video Processing Control Module on Low Speed CAN Bus |
| U18C5 | Lost Communication with Electronic Brake Control Module on High Speed CAN Bus |
| U18C6 | Transmission Range Selector Control Module Lost Communication with Engine Control Module on Powertrain Sensor CAN Bus |
| U18C7 | Transmission Range Selector Control Module Lost Communication with Engine Control Module on Powertrain Expansion CAN Bus |
| U18CA | Lost Communication with Active Safety Control Module 1 on Flexray Bus |
| U18CB | Lost Communication with Active Safety Control Module 2 on Flexray Bus |
| U18CC | Transmission Range Control Module Lost Communication with ECM on Powertrain Expansion Bus |
| U18CF | Lost Communication with Active Safety Control Module 1 on High Speed CAN Bus |
| U18D0 | Lost Communication with Active Safety Control Module 2 on High Speed CAN Bus |
| U18D1 | Lost Communication with Transmission Range Control Module on Powertrain Expansion CAN Bus |
| U18D2 | Lost Communication with Transmission Range Selector Control Module on Powertrain Sensor CAN Bus |
| U18D3 | Lost Communication with Transmission Range Selector Control Module on Powertrain Expansion CAN Bus |
| U18D4 | Lost Communication with Fuel Level Sensor Control Module |
| U18D5 | Central Gateway Module Lost Communication with Engine Control Module |
| U18D6 | Central Gateway Module Lost Communication with Hybrid/EV Powertrain Control Module 1 |
| U18D7 | Central Gateway Module Lost Communication with Transmission Control Module |
| U18D8 | Central Gateway Module Lost Communication with Fuel Pump Control Module |
| U18D9 | Central Gateway Module Lost Communication with Chassis Control Module |
| U18DA | Central Gateway Module Lost Communication with Fuel Injector Control Module |
| U18DB | Central Gateway Module Lost Communication with Hybrid/EV Powertrain Control Module 2 |
| U18DC | Central Gateway Module Lost Communication with Brake System Control Module 1 |
| U18DD | Central Gateway Module Lost Communication with Brake System Control Module 2 |
| U18DE | Central Gateway Module Lost Communication with Glow Plug Control Module |
| U18DF | Central Gateway Module Lost Communication with Auxiliary Heater Control Module |
| U18E0 | Central Gateway Module Lost Communication with Battery Energy Control Module |
| U18E1 | Glow Plug Control Module Lost Communication with Central Gateway Module |
| U18E9 | Lost Communication with Serial Data Gateway Module on Low Speed CAN Bus |
| U1900 | Lost Communication With Speech to Text Interface Module |
| U1901 | Lost Communication with Infotainment Multifunction Switch Module |
| U2010 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 1 |
| U2011 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 2 |
| U2012 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 3 |
| U2013 | Network Configuration List Not Programmed - Engine Control Module LIN Bus 4 |
| U2022 | Network Configuration List Not Programmed - Electronic Brake Control Module LIN Bus 1 |
| U2023 | Network Configuration List Not Programmed - Electronic Brake Control Module LIN Bus 2 |
| 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 |
| U240B | Radio Dedicated Bus Off |
| U240D | Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off |
| U240E | Transmission Range Selector Control Module Powertrain Sensor CAN Bus Off |
| U240F | Transmission Range Control Module Lost Communication with EBCM on High Speed CAN Bus |
| U2410 | Transmission Range Control Module Lost Communication with BCM on High Speed CAN Bus |
| U2411 | Transmission Range Control Module Powertrain Expansion CAN Bus Off |
| U2412 | Reductant Control Module Powertrain Sensor Bus Off |
| U2413 | Central Gateway Module High Speed CAN Bus Off |
| U2414 | Central Gateway Module High Speed Extension CAN Bus Off |
| U2415 | Central Gateway 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 |
| U250B | Invalid Data Received from Active Safety Control Module 1 on Chassis Expansion CAN Bus |
| U250C | Invalid Data Received from Active Safety Control Module 2 on Chassis Expansion CAN Bus |
| U250D | Invalid Data Received from Transmission Control Module on Chassis Control Module LIN Bus 2 |
| U250E | Invalid Data Received from Vehicle Dynamic Sensor 1 |
| U250F | Invalid Data Received from Vehicle Dynamic Sensor 2 |
| U2510 | Invalid Data Received from Multifunction Energy Storage Capacitor Control Module |
| U2511 | Invalid Data Received from Digital Map Control Module |
| U2512 | Invalid Data Received from Video Processing Control Module |
| U2513 | Invalid Data Received from Driver Monitoring System Control Module |
| U2520 | Invalid Data Received from Active Safety Control Module 1 on High Speed CAN Bus |
| 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 |
| U2626 | Reductant Control Module Lost Communication With Engine Control Module on Powertrain Sensor CAN Bus |
| U2627 | Reductant Control Module Lost Communication with Reductant Level Sensor |
| U2628 | Reductant Control Module Lost Communication with Reductant Concentration Sensor |
| U2629 | Reductant Control Module Lost Communication with Reductant Tank Temperature Sensor 1 |
| U2630 | Reductant Control Module Lost Communication with Reductant Tank Temperature Sensor 2 |
| U2631 | Reductant Control Module Lost Communication with Reductant Pressure Sensor |
| U3000 | Control Module |
| U3001 | Control Module Improper Shutdown Performance |
| U3012 | Control Module Improper Wake-up Performance |