TuningBot DTC Database · v4.37.15
3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
HyundaiThe control module detected a fault associated with the MOST Critical Unlock Detected 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.
PSAThe control module detected the fault condition "Registering of a fault on the slave node of the Alternator LINnetwork" for the Alternator LIN network. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
The control module detected the fault condition "Recording the a fault on a slave node of the LIN network" for the Alternator LIN network. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Network: communication between control units.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the MOST Critical Unlock Detected 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.
U1401 is a manufacturer-specific code. In this database it is documented for: Hyundai, PSA. The same number can mean something different on other brands.
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 U1401 is removable in your case.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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