Module Communications Network DTCS
COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| U0001:88 | High Speed CAN Communication Bus: Bus Off | Cruise-Control Module (C-CM) | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0002:88 | High Speed CAN Communication Bus Performance: Bus Off | Instrument Panel Cluster (IPC) | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0010:88 | Medium Speed CAN Communication Bus: Bus Off | HVAC module | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0011:88 | Medium Speed CAN Communication Bus Performance: Bus Off | IPC | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0073 | Control Module Communication Bus A Off | ABS module | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0073:00 | Control Module Communication Bus A Off: No Sub Type Information | C-CM | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0074 | Control Module Communication Bus B Off | ABS module | REFER to VEHICLE DYNAMIC SYSTEMS . |
| U0100 | Lost Communication With ECM /PCM | 4X4 control module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100 | Lost Communication With ECM /PCM | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100 | Lost Communication With ECM /PCM | Occupant Classification System Module (OCSM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100 | Lost Communication With ECM /PCM | Restraints Control Module (RCM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100:00 | Lost Communication With ECM /PCM "A": No Sub Type Information | Accessory Protocol Interface Module (APIM) | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0100:00 | Lost Communication With ECM /PCM: No Sub Type Information | C-CM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100:00 | Lost Communication With ECM /PCM: No Sub Type Information | Headlamp Control Module (HCM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100:00 | Lost Communication With ECM /PCM: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST A . |
| U0100:87 | Lost Communication With ECM /PCM: Missing Message | Remote Function Actuator (RFA) module | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0102 | Lost Communication With Transfer Case Control Module (4x4CM) | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST H . |
| U0102:00 | Lost Communication With Transfer Case Control Module (4x4CM): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST H . |
| U0104:00 | Lost Communication With Cruise Control Module: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST G . |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module | 4X4 control module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST B . |
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | C-CM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST B . |
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | Headlamp Control Module (HCM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST B . |
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST B . |
| U0140 | Lost Communication With Body Control Module (GEM ) | Driver Door Module (DDM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140 | Lost Communication With Body Control Module (GEM ) | Driver Seat Module (DSM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140 | Lost Communication With Body Control Module (GEM ) | Front Display Interface Module (FDIM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140 | Lost Communication With Body Control Module (GEM ) | Parking Aid Module (PAM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0140:00 | Lost Communication With Body Control Module (GEM ): No Sub Type Information | Audio Control Module (ACM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:00 | Lost Communication With Body Control Module (GEM ): No Sub Type Information | Audio Digital Signal Processing (DSP) module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:00 | Lost Communication With Body Control Module (GEM ): No Sub Type Information | Front Controls Interface Module (FCIM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:00 | Lost Communication With Body Control Module (GEM ): No Sub Type Information | Headlamp Control Module 2 (HCM-2) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:00 | Lost Communication With Body Control Module (GEM ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST I . |
| U0140:87 | Lost Communication With Body Control Module (GEM ): Missing Message | RFA module | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0151 | Lost Communication With Restraints Control Module | OCSM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST D . |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST D . |
| U0154 | Lost Communication With Restraints Occupant Classification System Module (OCS ) | RCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST E . |
| U0154:00 | Lost Communication With Restraints Occupant Classification System Module (OCS ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST E . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | 4X4 control module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, 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. If the DTC returns, Go To PINPOINT TEST C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | DSM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | PAM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | Smart Junction Box (SJB) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC ) Control Module: No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IC ) Control Module: No Sub Type Information | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IC ) Control Module: No Sub Type Information | C-CM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IC ) Control Module: No Sub Type Information | Audio DSP module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IC ) Control Module: No Sub Type Information | HCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST C . |
| U0155:87 | Lost Communication With Instrument Panel Cluster (IC ) Control Module: Missing Message | RFA module | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0159:00 | Lost Communication With Parking Assist Control Module (PAM ): No Sub Type Information | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST Q . |
| U0159:00 | Lost Communication With Parking Assist Control Module (PAM ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST Q . |
| U0161:00 | Lost Communication With Compass Module: No Sub Type Information | IPC | REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . |
| U0162:00 | Lost Communication With Navigation Display Module: No Sub Type Information | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0163:00 | Lost Communication With Navigation Control Module: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST K . |
| U0164:00 | Lost Communication With HVAC Control Module (EATC ): No Sub Type Information | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0164 | Lost Communication With HVAC Control Module (EATC ) | FDIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0164:00 | Lost Communication With HVAC Control Module (EATC ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST J . |
| U0184 | Lost Communication With Radio (ACM ) | Accessory Protocol Interface Module (APIM) | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0184 | Lost Communication With Radio (ACM ) | FDIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0184:00 | Lost Communication With Radio: No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0184:00 | Lost Communication With Radio (ACM ): No Sub Type Information | Audio DSP module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0184:00 | Lost Communication With Radio (ACM ): No Sub Type Information | FCIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS ) | FDIM | DISREGARD this DTC. This vehicle is not equipped with a SDARS module. |
| U0193:00 | Lost Communication With Digital Audio Control Module (SDARS ): No Sub Type Information | ACM | DISREGARD this DTC. This vehicle is not equipped with a SDARS module. |
| U0197 | Lost Communication With Telephone Control Module | FDIM | This DTC refers to the APIM , not the telephone control module. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0197:00 | Lost Communication With Telephone Control Module: No Sub Type Information | ACM | This DTC refers to the APIM , not the telephone control module. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0197:00 | Lost Communication With Telephone Control Module: No Sub Type Information | Audio DSP module | This DTC refers to the APIM, not the telephone control module. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0208:00 | Lost Communication With Seat Control Module (DSM ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST O . |
| U0214:00 | Lost Communication With Remote Function Actuator: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST T . |
| U0230:00 | Lost Communication With Rear Gate Module (LTM ): No Sub Type Information | IPC | DISREGARD this DTC. This vehicle is not equipped with a LTM . |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP ) | FDIM | DISREGARD this DTC. The navigation ACM -equipped vehicle is not equipped with a audio DSP module. |
| U0238:00 | Lost Communication With Digital Audio Control Module "D" (DSP ): No Sub Type Information | ACM | DISREGARD this DTC. The navigation ACM -equipped vehicle is not equipped with a audio DSP module. |
| U0241:00 | Lost Communication With Headlamp Control Module (HCM ): No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST F . |
| U0242:00 | Lost Communication With Headlamp Control Module (HCM ) "B": No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST S . |
| U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | RCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, Go To PINPOINT TEST U . |
| U0255 | Lost Communication With Front Controls Interface Module | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0255:00 | Lost Communication With Front Controls Interface Module: No Sub Type Information | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0255:00 | Lost Communication With Front Display Interface Module: No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0256 | Lost Communication With Front Display Interface Module | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0256:00 | Lost Communication With Front Display Interface Module: No Sub Type Information | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0256:00 | Lost Communication With Front Controls Interface Module "A": No Sub Type Information | APIM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0401 | Invalid Data Received from ECM /PCM A | 4X4 control module | RETRIEVE and FOLLOW non-network DTCs from the PCM . |
| U0401:00 | Invalid Data Received from ECM /PCM A: No Sub Type Information | C-CM | RETRIEVE and FOLLOW non-network DTCs from the PCM . |
| U0401:00 | Invalid Data Received from ECM /PCM A: No Sub Type Information | HCM | RETRIEVE and FOLLOW non-network DTCs from the PCM . |
| U0401:67 | Invalid Data Received from ECM /PCM A: Signal Incorrect After Event | C-CM | RETRIEVE and FOLLOW non-network DTCs from the PCM . |
| U0401:81 | Invalid Data Received from ECM /PCM A: Invalid Serial Data Received | C-CM | RETRIEVE and FOLLOW non-network DTCs from the PCM . |
| U0405 | Invalid Data Received From Cruise Control Module | ABS module | RETRIEVE and FOLLOW non-network DTCs from the CCM . |
| U0415 | Invalid Data Received from Anti-Lock Brake System (ABS) Control Module | 4X4 control module | RETRIEVE and FOLLOW non-network DTCs from the ABS module. |
| U0415:00 | Invalid Data Received from Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | HCM | RETRIEVE and FOLLOW non-network DTCs from the ABS module. |
| U0415:81 | Invalid Data Received from Anti-Lock Brake System (ABS) Control Module: Invalid Serial Data Received | C-CM | RETRIEVE and FOLLOW non-network DTCs from the ABS module. |
| U0415:86 | Invalid Data Received from Anti-Lock Brake System (ABS) Control Module: Signal Invalid | C-CM | RETRIEVE and FOLLOW non-network DTCs from the ABS module. |
| U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | APIM | RETRIEVE and FOLLOW non-network DTCs from the SJB . |
| U0423:00 | Invalid Data Received From Instrument Panel Cluster (IPC ) Control Module: No Sub Type Information | APIM | RETRIEVE and FOLLOW non-network DTCs from the IPC . |
| U0423:68 | Invalid Data Received From Instrument Panel Control Module: Event Information | RFA | RETRIEVE and FOLLOW non-network DTCs from the IPC . |
| U0485:00 | Invalid Data Received From Radio: No Sub Type Information | APIM | RETRIEVE and FOLLOW non-network DTCs from the ACM . |
| U049A:68 | Invalid Data Received From "Door Control Module A": Event Information | RFA | RETRIEVE and FOLLOW non-network DTCs from the DDM . |
| U2005:12 | Vehicle Speed: Circuit Short To Battery | ACM | DISREGARD this DTC. The vehicle does not utilize a hard-wired Vehicle Speed Sensor (VSS) input. |
| U2023 | Fault Received From External Node | ABS module | DTC U2023 is set when the ABS module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES for a list of all DTCs. |
| U2023 | Fault Received From External Node | OCSM | DTC U2023 is set when the OCSM receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES for a list of all DTCs. |
| U2023 | Fault Received From External Node | RCM | DTC U2023 is set when the RCM receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES for a list of all DTCs. |
| U2472 | Unexpected Ignition State | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U2473 | Unexpected Vehicle Speed (VSS ) | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U2515 | Missing Message For Adaptive Cruise Control | ABS module | RETRIEVE and FOLLOW non-network DTCs from other modules. REFER to SPEED CONTROL . |
| U3000:88 | Control Module: Bus Off | APIM | The module could not communicate on the network at a point in time. The fault is currently not present since the module is currently communicating with the scan tool reporting this DTC. CLEAR the DTC. REPEAT the network test with the scan tool. |