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.
2011 Ford Transit Connect Van CargoFACTORY OEM SERVICE PROCEDURE
Communications Network
COMMUNICATION NETWORK DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| U0001:88 | High Speed CAN Communication Bus: 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 | 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 | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST A . |
| U0100:88 | Lost Communication With ECM /PCM "A": Bus Off | Speech Recognition Module (SRM) | 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. |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module | Instrument Cluster (IC) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST B . |
| U0125:00 | Lost Communication With Multi-Axis Acceleration Sensor Module: No Sub Type Information | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0125:88 | Lost Communication With Multi-Axis Acceleration Sensor Module: Bus Off | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0126:00 | Lost Communication With Steering Angle Sensor Module: No Sub Type Information | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0126 | Lost Communication With Steering Angle Sensor Module | IC | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0127 | Lost Communication With Tire Pressure Monitor Module | IC | 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 ) | Audio Control Module (ACM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST J . |
| U0146 | Lost Communication With Gateway | Generic Electronic Module (GEM) | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST C . |
| U0151 | Lost Communication With Restraints Control Module | GEM IC Occupant Classification System Module (OCSM) |
CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST H . |
| 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 G . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Module | ACM GEM RCM Tire Pressure Monitoring System (TPMS) 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 ) Module: No Sub Type Information | ABS module | CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST C . |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP ) | ACM IC |
CLEAR the DTC. REPEAT the network test with the scan tool. If the DTC returns, GO to PINPOINT TEST F . |
| U0401:00 | Invalid Data Received from ECM /PCM A: No Sub Type Information | ABS module | RETRIEVE and FOLLOW the DTCs from the PCM. |
| U0402:00 | Invalid Data Received from TCM : No Sub Type Information | ABS module | RETRIEVE and FOLLOW the DTCs from the PCM. |
| U0428:00 | Invalid Data Received from Steering Angle Sensor Module: No Sub Type Information | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0428:41 | Invalid Data Received from Steering Angle Sensor Module: General Checksum Failure | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0428:61 | Invalid Data Received from Steering Angle Sensor Module: Signal Calculation Failure | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0428:62 | Invalid Data Received from Steering Angle Sensor Module: Signal Compare Failure | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U0428:64 | Invalid Data Received from Steering Angle Sensor Module: Signal Plausibility Failure | ABS module | REFER to ANTI-LOCK BRAKE SYSTEM - VEHICLE DYNAMIC SYSTEM article. |
| U1900 | CAN Communication Bus Fault-Receive Error | ABS module | GO to SYMPTOM CHART for module that failed network test. |
| U2012 | Communication Bus Error (Non SCP ) | 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. |
| U2023 | Fault Received From External Node | IC TPMS 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. |
| U2196 | Invalid 'Engine RPM' Data | IC | 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. |
| U2197 | Invalid 'Vehicle Speed' Data | IC | 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. |
| U2198 | Invalid 'Fuel Pulse' Data | IC | 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. |
| U2199 | Invalid 'Engine Coolant Temperature' Data | IC | 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. |
| U2200 | Invalid 'ODO Count' Data | IC | 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. |
| U2510 | CAN Invalid 'Vehicle Security' Data | IC | REFER to ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| U2511 | CAN Data Mis-Match (Receive Data Does Not Match Expected) | IC | REFER to ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
Factory Service Tools
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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.
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