What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
U11C3ESM Lost Communication With TCM On D-Pt CAN may have been displayed insteU11C3ESM Lost Communication With TCM On D-Pt CAN may have been displayed instead ofManufacturer communications
3Original wording in English
CHRYSLER, DODGE, JEEP, RAM
Reported code forms U11C3
Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The following TCM calibration improvements are available for…
CHRYSLER, DODGE, JEEP, RAM
Reported code forms U11C3
Flash: 845RE Transmission Shift Enhancements, 2-1 Downshift This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The following TCM calibration improvements are…
RAM
Reported code forms U11C3
Flash: Transmission Shift Enhancements This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software. The customer may indicate that they may have experienced any of the…
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 1500 | 2014 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.