The control module detected a fault associated with the High Speed CAN2 Communication (EMS - DCT) circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
TuningBot DTC Database · v4.37.15
U1117 Diagnostic Trouble Code (3 interpretations)
3 manufacturer-specific interpretations across 3 manufacturers in the TuningBot DTC database.
Hyundai
1 interpretation
Mitsubishi
1 interpretationThe control module detected a fault associated with the Immobilizer control module, CAN data bus - time out circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mitsubishi.
Possible causes
- Wiring
- immobilizer control module
- ECM
PSA
1 interpretationThe control module detected that the expected Fault no communication with the intelligent hydraulic unit ECU was absent. Documented for the Bosch ESP 8.1 stability control ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Related and nearby codes
How to read U1117
Network: communication between control units.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about U1117
What does U1117 mean?
Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the High Speed CAN2 Communication (EMS - DCT) circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
Is U1117 generic or manufacturer-specific?
U1117 is a manufacturer-specific code. In this database it is documented for: Hyundai, Mitsubishi, PSA. The same number can mean something different on other brands.
Can TuningBot remove U1117 at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U1117 is removable in your case.
Other file services
Understand the system behind this code: Immobilizer Systems and ECU Pairing
