DTC Charts
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Network DTCs (U-codes) are often a result of intermittent concerns such as faulty wiring or low battery voltage occurrences. Additionally, vehicle service procedures such as module reprogramming will often set network DTCs. Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery, refer to BATTERY, MOUNTING AND CABLES
article.
NOTE:
DTC U1900 will set in a module that is reporting a communication fault from another module on the data bus. The module that reports the fault is not the problem module.
COMMUNICATION NETWORK DTC CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U0001 | High Speed CAN Communication Bus | ABS module (Escape and Mariner only) | 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. |
| U0100 | Lost Communication with ECM/PCM | ABS module (Escape and Mariner only) | 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 | 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 | Instrument cluster (IC) | 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 | Power steering control module (PSCM) | 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 | Traction battery control module (TBCM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test A . |
| U0101 | Lost Communication with TCM | IC (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test H . |
| U0101 | Lost Communication with TCM | PCM (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test H . |
| U0101 | Lost Communication With TCM | PCM (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test H . |
| U0111 | Lost Communication with Battery Energy Control Module | IC (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test I . |
| U0111 | Lost Communication With Battery Energy Control Module | PCM (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test I . |
| U0114 | Lost Communication With Four-Wheel Drive Clutch Control Module | ABS module (Escape and Mariner only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test C . |
| U0114 | Lost Communication with Four-Wheel Drive Clutch Control Module | IC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test C . |
| U0121 | Lost Communication with Anti-Lock Brake System (ABS) Control Module | IC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test B . |
| 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 . |
| U0129 | Lost Communication with Brake System Control Module | IC (Hybrid only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test B . |
| U0129 | Lost Communication With Brake System Control Module | PCM | 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) | IC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test G . |
| U0140 | Lost Communication with Body Control Module (GEM) | Front controls interface module (FCIM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test J . |
| U0140 | Lost Communication with Body Control Module (GEM) | Audio control module (ACM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test J . |
| U0140 | Lost Communication with Body Control Module (GEM) | Heating ventilation air conditioning (HVAC) module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test J . |
| 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 J . |
| U0140 | Lost Communication with Body Control Module (GEM) | IC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test J . |
| U0151 | Lost Communication with Restraints Control Module | IC | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test E . |
| U0151 | Lost Communication with Restraints Control Module | Occupant Classification System Module (OCSM) | 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 | ABS module (Escape and Mariner only) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test D . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | Audio control module (ACM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test D . |
| 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 D . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | PCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test D . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | PSCM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test D . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | SJB | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test D . |
| 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 D |
| U0159 | Lost Communication with Parking Assist Control Module (PAM) | ACM | DISREGARD the DTC. The parking aid module does not communicate on the MS-CAN. |
| U0164 | Lost Communication With HVAC Control Module (EATC) | FDIM | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, go to Pinpoint Test L |
| U0164 | Lost Communication with HVAC Control module (EATC) | IC | Go to Pinpoint Test L . |
| U0184 | Lost Communication with Radio (ACM) | FCIM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0184 | Lost Communication with Radio (ACM) | FDIM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0184 | Lost Communication with Radio (ACM) | Satellite digital audio receiver system (SDARS) module | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0193 | Lost Communication with Digital Audio Control Module (SDARS) | ACM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0193 | Lost Communication with Digital Audio Control Module (SDARS) | FDIM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0196 | Lost Communication With Entertainment Control Module - Rear (AUX) | ACM | DISREGARD the DTC. A DVD player is not available on this vehicle. |
| U0196 | Lost Communication With Entertainment Control Module - Rear (AUX) | FDIM | DISREGARD the DTC. A DVD player is not available on this vehicle. |
| U0196 | Lost Communication with Entertainment Control Module - Rear (AUX) | SDARS module | DISREGARD the DTC. A DVD player is not available on this vehicle. |
| U0197 | Lost Communication with Telephone Control Module | ACM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0197 | Lost Communication with Telephone Control Module | FDIM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0197 | Lost Communication with Telephone Control Module | SDARS module | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP) | ACM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP) | FDIM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | ACM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | FDIM | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU) | SDARS module | DISREGARD the DTC. The vehicle is not equipped with this feature. |
| U0255 | Lost Communication with Front Controls Interface Module | ACM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0255 | Lost Communication with Front Controls Interface Module | SDARS module | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0256 | Lost Communication with Front Display Interface Module | ACM | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0256 | Lost Communication with Front Display Interface Module | SDARS | Go to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U0401 | Invalid Data Received From Transmission Control Module | ABS module (Escape and Mariner only) | RETRIEVE and FOLLOW DTCs from the transmission control module (TCM). REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U0401 | Invalid Data Received from ECM/PCM A | 4X4 control module | RETRIEVE and FOLLOW DTCs from the PCM. REFER to the Introduction - Gasoline Engines article. |
| U0402 | Invalid Data Received From TCM | ABS module (Escape and Mariner only) | RETRIEVE and FOLLOW DTCs from the 4X4 control module. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U0414 | Invalid Data Received From Four-Wheel Drive Clutch Control Module | ABS module (Escape and Mariner only) | RETRIEVE and FOLLOW DTCs from the 4X4 control module. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U0415 | Invalid Data Received from Anti-Lock Brake System (ABS) Control Module | 4X4 control module | RETRIEVE and FOLLOW DTCs from the ABS module. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U1900 | CAN Communication Bus Fault - Receive Error | ABS module (Hybrid only) | FOLLOW the pinpoint test for the module which failed the network test. Go to Symptom Chart . |
| U1900 | CAN Communication Bus Fault - Receive Error | Restraints control module (RCM) | FOLLOW the pinpoint test for the module which failed the network test. Go to Symptom Chart . |
| U1901 | CAN Network #2 Communication Bus Fault - Receive Error | ABS module (Hybrid only) | Go to VEHICLE DYNAMIC SYSTEMS article. |
| U2013 | Compass Module is Not Responding | IC | Go to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article. |
| U2023 | Fault Received From External Node | ABS module (Hybrid only) | U2023 is set when a 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 article for a list of all DTCs. |
| U2023 | Fault Received From External Node | IC | U2023 is set when a 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 article for a list of all DTCs. |
| U2023 | Fault Received From External Node | PSCM | U2023 is set when a 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 article for a list of all DTCs. |
| U2472 | Unexpected Ignition State | IC | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2472 | Unexpected Ignition State | Smart junction box (SJB) | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2473 | Unexpected Vehicle Speed | ACM | REFER to INFORMATION AND ENTERTAINMENT SYSTEMS article. |
| U2473 | Unexpected Vehicle Speed | SJB | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2510 | CAN - Invalid Data for Vehicle Security | IC | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2511 | CAN - Data Mis-Match (Receive Data Does Not Match Expected) | IC | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2516 | CAN Bus Off - Transmit Error | ABS module (Hybrid only) | RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES article for a list of all DTCs. |
| U2527 | CAN Network #2 Bus Off - Transmit Error | ABS module (Hybrid only) | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| U261A | CAN Data / Configuration Setup Mismatch | IC | REFER to EXTERIOR LIGHTING article. |