Module Communications Network
COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| U0073 | Control Module Communication Bus Off | Anti-lock brake system (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 Off | Instrument cluster | 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 Off | Smart junction box (SJB) | 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. |
| U0140 | Lost Communication With Body Control Module (GEM) | Audio control module | CLEAR the DTC. If the SJB failed the network test, go to Pinpoint Test D . Otherwise, DISREGARD the DTC. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | Audio control module | If the instrument cluster failed the network test, go to Pinpoint Test C . Otherwise, REFER to INSTRUMENT CLUSTER . |
| U0159 | Lost Communication With Parking Assist Control Module (PAM) | Audio control module | DISREGARD this DTC. |
| U0184 | Lost Communication With Radio | Satellite digital audio receiver system (SDARS) | If the audio unit fails the network test, go to Pinpoint Test E . Otherwise, REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS) | Audio control module | If the SDARS fails the network test, go to Pinpoint Test F . |
| U0196 | Lost Communication With Entertainment Control Module - Rear (AUX) | Audio control module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0196 | Lost Communication With Entertainment Control Module - Rear (AUX) | SDARS | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0197 | Lost Communication With Telephone Control Module | Audio control module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0197 | Lost Communication With Telephone Control Module | SDARS | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0238 | Lost Communication With Digital Audio Control Module "D" | Audio control module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" | Audio control module | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" | SDARS | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . |
| U1900 | CAN Communication Bus Fault-Receive Error | ABS module | Go to Symptom Chart for module that failed network test. |
| U1900 | CAN Communication Bus Fault-Receive Error | Audio unit | Go to Symptom Chart for module that failed network test. |
| U1900 | CAN Communication Bus Fault-Receive Error | Instrument cluster | Go to Symptom Chart for module that failed network test. |
| U1900 | CAN Communication Bus Fault-Receive Error | SJB | Go to Symptom Chart for module that failed network test. |
| U2011 | Module Transmitted Invalid Data (Non SCP) | ABS module | RETRIEVE AND FOLLOW non-network DTCs from module with non-network fault code present. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U2023 | Fault Received From External Node | Instrument cluster | RETRIEVE AND FOLLOW non-network DTCs from module with non-network fault code present. REFER to MULTIFUNCTION ELECTRONIC MODULES . |