Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2010MUSTANG BASE, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1114 (MODULE COMMUNICATIONS NETWORK)DIAGNOSTIC TESTSCOMMUNICATIONS NETWORKDTC CHARTS
2010 Ford Mustang Base, 2D Coupe, Automatic
DTC Charts
2010 Ford Mustang Base, 2D Coupe, AutomaticSECTION DTC Charts
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. 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.
COMMUNICATION NETWORK DTC CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U0002 | High Speed CAN Communication Bus Performance | Instrument cluster (IC) | 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 | Medium Speed CAN Communication Bus Performance | IC | 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 | Vehicle Communication Bus A | ABS module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| U0073 | Control Module Communication Bus 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. |
| U0100 | Lost Communication With ECM/PCM | IC | Go to Pinpoint Test A . |
| U0100 | Lost Communication With ECM/PCM | Restraints control module (RCM) | Go to Pinpoint Test A . |
| U0115 | Lost Communication With ECM/PCM - Secondary (SPCM) | ABS module | Go to Pinpoint Test A . |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module | IC | Go to Pinpoint Test B . |
| U0151 | Lost Communication With Restraints Control Module (RCM) | IC | Go to Pinpoint Test E . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | Vehicle security module (VSM) | If the IC failed the network test, go to Pinpoint Test C . Otherwise, REFER to INSTRUMENT CLUSTER (IC) AND WARNING CHIMES article. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | ABS module | If the IC failed the network test, go to Pinpoint Test C . Otherwise, REFER to INSTRUMENT CLUSTER (IC) AND WARNING CHIMES article. |
| U0168 | Lost Communication With Vehicle Security Control Module | IC | Go to Pinpoint Test D . |
| U2023 | Fault Received From External Node | Instrument cluster | 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 | RCM | 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 | VSM | 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. |
| 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 | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.