The control module detected a fault associated with the Exhaust Gas Temperature not Plausible between Calculated and Simulated 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
P1406 Hyundai - Exhaust Gas Temperature not Plausible between Calculated and Simulated
Manufacturer-specific interpretation for Hyundai. All interpretations of P1406
What P1406 means
Related and nearby codes
How to read P1406
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1406
What does P1406 mean?
Exhaust Gas Temperature not Plausible between Calculated and Simulated. The control module detected a fault associated with the Exhaust Gas Temperature not Plausible between Calculated and Simulated 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 P1406 generic or manufacturer-specific?
P1406 is a manufacturer-specific code. In this database it is documented for: Hyundai. The same number can mean something different on other brands.
Can TuningBot remove P1406 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
