Module Communications Network DTCS
COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| U0073 | Control Module Communication Bus A Off | ABS module | DTC U0073 indicates the module could not communicate on the network at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0073 | Control Module Communication Bus A Off | Heating ventilation air conditioning (HVAC) module | DTC U0073 indicates the module could not communicate on the network at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0073 | Control Module Communication Bus A Off | Instrument cluster (IC) | DTC U0073 indicates the module could not communicate on the high speed controller area network (HS-CAN) at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0073 | Control Module Communication Bus A Off | Steering effort control module (SECM) | DTC U0073 indicates the module could not communicate on the network at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0074 | Control Module Communication Bus B Off | ABS module | DTC U0074 indicates the module could not communicate on the medium speed controller area network (MS-CAN) at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0074 | Control Module Communication Bus B Off | IC | DTC U0074 indicates the module could not communicate on the MS-CAN at a point in time. The fault is currently not present. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0100 | Lost Communication With ECM/PCM | ABS module | The fault is not currently present if the PCM communicates with the scan tool. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0100 | Lost Communication With ECM/PCM | IC | The fault is not currently present if the PCM communicates with the scan tool. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0100 | Lost Communication With ECM/PCM | Restraints control module (RCM) | The fault is not currently present if the PCM communicates with the scan tool. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0100 | Lost Communication With ECM/PCM | SECM | The fault is not currently present if the PCM communicates with the scan tool. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0100 | Lost Communication With ECM/PCM | 4X4 control module | The fault is not currently present if the PCM communicates with the scan tool. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0102 | Lost Communication With Transfer Case Control Module (4X4CM) | ABS module | Go to Pinpoint Test D . |
| U0114 | Lost Communication With Four-Wheel Drive Clutch Control Module | ABS module | Go to Pinpoint Test D . |
| U0114 | Lost Communication With Four-Wheel Drive Clutch Control Module | IC | Go to Pinpoint Test C . |
| U0121 | Lost Communication With ABS Control Module | 4X4 control module | CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test. |
| U0121 | Lost Communication With ABS Control Module | IC | CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test. |
| U0121 | Lost Communication With ABS Control Module | SECM | CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test. |
| U0126 | Lost Communication With Steering Angle Sensor Module | SECM | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| U0140 | Lost Communication With Body Control Module (GEM) | Audio control module (ACM) | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0140 | Lost Communication With Body Control Module (GEM) | Rear entertainment module (RETM) | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0140 | Lost Communication With Body Control Module (GEM) | Driver seat module (DSM) | Go to Pinpoint Test H . |
| U0140 | Lost Communication With Body Control Module (GEM) | HVAC module | Go to Pinpoint Test H . |
| U0140 | Lost Communication With Body Control Module (GEM) | IC | Go to Pinpoint Test H . |
| U0140 | Lost Communication With Body Control Module (GEM) | Liftgate/trunk module (LTM) | Go to Pinpoint Test H . |
| U0151 | Lost Communication With Restraints Control Module | IC | Go to Pinpoint Test E . |
| U0151 | Lost Communication With Restraints Control Module | Occupant classification system module (OCSM) | Go to Pinpoint Test E . |
| U0154 | Lost Communication With Restraints Occupant Classification System Module (OCS) | RCM | Go to Pinpoint Test F . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | 4X4 control module | Go to Pinpoint Test C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | DSM | Go to Pinpoint Test C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | LTM | Go to Pinpoint Test C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | SJB | Go to Pinpoint Test C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | SECM | CLEAR the DTC. REPEAT the network test with the scan tool. FOLLOW the appropriate pinpoint test for the module which fails the network test. |
| U0159 | Lost Communication With Parking Assist Control Module (PAM) | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0164 | Lost Communication With HVAC Control Module (EATC) | IC | Go to Pinpoint Test N . |
| U0184 | Lost Communication With Radio (ACM) | Accessory protocol interface module (APIM) | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0184 | Lost Communication With Radio (ACM) | RETM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0184 | Lost Communication With Radio (ACM) | Satellite digital audio receiver system (SDARS) module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS) | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS) | RETM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0196 | Lost Communication With Entertainment Control Module A | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0196 | Lost Communication With Entertainment Control Module A | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0196 | Lost Communication With Entertainment Control Module A | SDARS module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0197 | Lost Communication With Telephone Control Module | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0197 | Lost Communication With Telephone Control Module | SDARS module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0208 | Lost Communication With Seat Control Module (DSM) | IC | Go to Pinpoint Test J . |
| U0212 | Lost Communication With Steering Column Control Module | SECM | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| U0230 | Lost Communication With Rear Gate Module (LTM) | IC | Go to Pinpoint Test L . |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP) | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | SDARS module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0255 | Lost Communication With Front Controls Interface Module | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0255 | Lost Communication With Front Controls Interface Module | SDARS module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0256 | Lost Communication With Front Display Interface Module | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0256 | Lost Communication With Front Display Interface Module | SDARS module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0401 | Invalid Data Received from ECM/PCM A | 4X4 control module | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U0401 | Invalid Data Received from ECM/PCM A | SECM | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U0415 | Invalid Data Received from ABS Control Module | 4X4 control module | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U0415 | Invalid Data Received from ABS Control Module | SECM | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2013 | Compass Module is Not Responding | IC | REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article. |
| U2023 | Fault Received From External Node | ABS module | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2023 | Fault Received From External Node | IC | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2023 | Fault Received From External Node | RCM | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2023 | Fault Received From External Node | SECM | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2196 | Invalid 'Engine RPM' Data | IC | RETRIEVE and FOLLOW non-network DTCs from the PCM. |
| U2199 | Invalid 'Engine Coolant Temperature' Data | IC | RETRIEVE and FOLLOW non-network DTCs from the PCM. |
| U2471 | Unexpected PRNDL State | LTM | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article. |
| U2472 | Unexpected Ignition State | IC | REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article. |
| U2472 | Unexpected Ignition State | LTM | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article. |
| U2472 | Unexpected Ignition State | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2473 | Unexpected Vehicle Speed (VSS) | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U2473 | Unexpected Vehicle Speed (VSS) | LTM | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article. |
| U2473 | Unexpected Vehicle Speed (VSS) | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| U2510 | CAN - Invalid Data for Vehicle Security | IC | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| U2511 | CAN - Data Mis-Match (Receive Data Does Not Match Expected) | IC | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| U261A | CAN Data / Configuration Setup Mismatch | IC | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |