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) Power Steering Control Module (PSCM) | 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. |
| 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. 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. CLEAR the DTC. REPEAT the network test with the scan tool. |
| U0028:08 | Vehicle Communication Bus A: Bus Signal / Message Failures | Restraints Control Module (RCM) | 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. |
| U0028:88 | Vehicle Communication Bus A: Bus Off | RCM | 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 | ABS module | 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 | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEMS Article. |
| U0100 | Lost Communication With ECM/PCM 4X4 control module | ABS module | 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) C-CM IPC Occupant Classification System Module (OCSM) Power Steering Control Module (PSCM) RCM | 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 "A": Missing Message | Remote Function Actuator (RFA) module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST A . |
| 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: 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 | Head Up Display (HUD) module IPC ABS module RCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST I . |
| 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 | APIM C-CM IPC PSCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST B . |
| U0131 | Lost Communication With Power Steering Control Module (PSCM) | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST D . |
| U0131:00 | Lost Communication With Power Steering 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 . |
| U0140 | Lost Communication With Body Control Module (GEM) | Audio Control Module (ACM) Driver Door Module (DDM) Driver Seat Module (DSM) Front Controls Interface Module (FCIM) Front Display Interface Module (FDIM) Interior Lighting Control Module (ILCM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST U . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | ACM APIM Audio Digital Signal Processing (DSP) module FCIM Global Positioning System Module (GPSM) HVAC module IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST U . |
| U0140:87 | Lost Communication With Body Control Module): Missing Message | RFA module HVAC module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST U . |
| U0151 | Lost Communication With Restraints Control Module | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST E . |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | APIM IPC OCSM | 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: No Sub Type Information | IPC RCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST F . |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Module | 4X4 control module ABS module ACM DSM FDIM GPSM 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 | ACM APIM Audio DSP module C-CM HUD module HVAC module RCM | 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 (IPC) Control Module: Missing Message | RFA module HVAC module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST C . |
| U0158:00 | Lost Communication With Head Up Display: 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 G . |
| U0159 | Lost Communication With Parking Assist Control Module (PAM) | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST J . |
| U0159:00 | Lost Communication With Parking Assist Control Module "A": No Sub Type Information | ACM IPC PSCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST J . |
| U0161:00 | Lost Communication With Compass Module: No Sub Type Information | IPC | REFER to INFORMATION CENTER - INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES Article. |
| U0162:00 | Lost Communication With Navigation Display Module: No Sub Type Information | ACM | REFER to INFORMATION SYSTEM AND ENTERTAINMENT SYSTEM Article. |
| U0163:00 | Lost Communication With Navigation Control Module: No Sub Type Information | HVAC module IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST N . |
| U0164 | Lost Communication With HVAC Control Module (EATC) | FCIM FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST V . |
| U0164:00 | Lost Communication With HVAC 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 V . |
| U016A:00 | Lost Communication With Global Positioning System Module: No Sub Type Information | APIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST P . |
| U0184 | Lost Communication With Radio (ACM) | FCIM FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST M . |
| U0184:00 | Lost Communication With Radio: No Sub Type Information | APIM Audio DSP module FCIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST M . |
| U0197 | Lost Communication With Telephone Control Module | ACM FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST L . |
| U0197:00 | Lost Communication With Telephone Control Module: No Sub Type Information | ACM Audio DSP module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST L . |
| U0208:00 | Lost Communication With "Seat Control Module A": 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 . |
| 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 K . |
| U0232:00 | Lost Communication With Side Obstacle Detection Control Module - Left: No Sub Type Information | IPC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST R . |
| U0233:00 | Lost Communication With Side Obstacle Detection Control Module - Right: 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 . |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP) | FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST W . |
| U0238:00 | Lost Communication With Digital Audio Control Module "D": No Sub Type Information | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST W . |
| U0242:00 | Lost Communication With Headlamp Control Module "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 Y . |
| 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 L . |
| U0255 | Lost Communication With Front Controls Interface Module | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST N . |
| U0255:00 | Lost Communication With Front Display Interface Module: No Sub Type Information | ACM | APIM CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST O . |
| U0256 | Lost Communication With Front Display Interface Module | ACM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST O . |
| U0256:00 | Lost Communication With Front Controls Interface Module "A": No Sub Type Information | ACM APIM HVAC module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST N . |
| U0401 | Invalid Data Received from ECM/PCM A | 4X4 control module | RETRIEVE and FOLLOW the DTCs from the PCM. |
| U0401:00 | Invalid Data Received from ECM/PCM A: No Sub Type Information | OCSM PSCM RCM | RETRIEVE and FOLLOW the DTCs from the PCM. |
| U0401:68 | Invalid Data Received from ECM/PCM A: Event Information | C-CM IPC | RETRIEVE and FOLLOW the DTCs from the PCM. |
| U0405 | Invalid Data Received from Cruise Control Module | ABS module | RETRIEVE and FOLLOW the DTCs from the C-CM. |
| U0405:55 | Invalid Data Received from Cruise Control Module: Not Configured | IPC | RETRIEVE and FOLLOW the DTCs from the C-CM. |
| U0405:68 | Invalid Data Received from Cruise Control Module: Event Information | HUD module | RETRIEVE and FOLLOW the DTCs from the C-CM. |
| U0415 | Invalid Data Received From Anti-Lock Brake System (ABS) Control Module | 4X4 control module | RETRIEVE and FOLLOW the DTCs from the ABS module. |
| U0415:00 | Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | PSCM | RETRIEVE and FOLLOW the DTCs from the ABS module. |
| U0418:68 | Invalid Data Received from Brake System Control Module: Event Information | C-CM | RETRIEVE and FOLLOW the DTCs from the ABS module. |
| U0420 | Invalid Data Received From Power Steering Control Module | ABS module | RETRIEVE and FOLLOW the DTCs from the PSCM. |
| U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | APIM GPSM | RETRIEVE and FOLLOW the DTCs from the SJB. |
| U0422:55 | Invalid Data Received From Body Control Module: Not Configured | IPC | RETRIEVE and FOLLOW the DTCs from the SJB. |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | HVAC module | RETRIEVE and FOLLOW the DTCs from the SJB. |
| U0423:00 | Invalid Data Received From Instrument Panel Cluster Control Module: No Sub Type Information | APIM GPSM | RETRIEVE and FOLLOW the DTCs from the IPC. |
| U0423:68 | Invalid Data Received From Instrument Panel Cluster Control Module: Event Information | HUD module HVAC module RFA module | RETRIEVE and FOLLOW the DTCs from the IPC. |
| U0424:68 | Invalid Data Received From HVAC Control Module: Event Information | C-CM | RETRIEVE and FOLLOW the DTCs from the HVAC module. |
| U0430:68 | Invalid Data Received From Tire Pressure Monitor Module: Event Information | IPC | RETRIEVE and FOLLOW the DTCs from the SJB. |
| U0452 | Invalid Data Received from Restraints Control Module | ABS module | RETRIEVE and FOLLOW the DTCs from the RCM. |
| U0459:68 | Invalid Data Received from Head Up Display: Event Information | C-CM | RETRIEVE and FOLLOW the DTCs from the HUD module. |
| U045A:00 | Invalid Data Received From Parking Assist Control Module "A": No Sub Type Information | PSCM | RETRIEVE and FOLLOW the DTCs from the PAM. |
| U045A:55 | Invalid Data Received From Parking Assist Control Module "A": Not Configured | IPC | RETRIEVE and FOLLOW the DTCs from the PAM. |
| U045A:68 | Invalid Data Received From Parking Assist Control Module "A": Event Information | IPC | RETRIEVE and FOLLOW the DTCs from the PAM. |
| U0462:68 | Invalid Data Received From Compass Module: Event Information | IPC | REFER to INFORMATION CENTER - INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES Article. |
| U0464:68 | Invalid Data Received From Navigation Control Module: Event Information | HVAC module | RETRIEVE and FOLLOW the DTCs from the ACM. |
| U046B:00 | Invalid Data Received From Global Positioning System Module: No Sub Type Information | APIM | RETRIEVE and FOLLOW the DTCs from the GPSM. |
| U0485:00 | Invalid Data Received From Radio: No Sub Type Information | APIM | RETRIEVE and FOLLOW the DTCs from the ACM. |
| U049A:68 | Invalid Data Received from "Door Control Module A": Event Information | RFA module | RETRIEVE and FOLLOW the DTCs from the DDM. |
| U0515:56 | Invalid Data Received from RFA Module | IPC | RETRIEVE and FOLLOW the DTCs from the RFA module. |
| U0554:00 | Invalid Data Received from Accessory Protocol Interface Module: No Sub Type Information | RCM | RETRIEVE and FOLLOW the DTCs from the APIM. |
| U0557:68 | Invalid Data Received From Front Controls Interface Module "A": Event Information | HVAC module | RETRIEVE and FOLLOW the DTCs from the FCIM. |
| U2023 | Fault Received From External Node | ABS module | The module had an invalid network input/message from another module. RETRIEVE and FOLLOW the non-network DTCs from other modules. REFER to MULTIFUNCTION ELECTRONIC MODULE Article. |
| U2472 | Unexpected Ignition State | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULE Article. |
| U2473 | Unexpected Vehicle Speed (VSS) | SJB | REFER to MULTIFUNCTION ELECTRONIC MODULE Article. |
| 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. CLEAR the DTC. REPEAT the network test with the scan tool. |