TuningBot DTC Database · v4.37.15
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
KiaKiaThe control module registered the fault condition described as "Immobilizer ECU Signal Error". This is the manufacturer-specific definition used by Kia.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Immobilizer ECU Signal Error. The control module registered the fault condition described as "Immobilizer ECU Signal Error". This is the manufacturer-specific definition used by Kia.
P1803 is a manufacturer-specific code. In this database it is documented for: Kia. The same number can mean something different on other brands.
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.
Understand the system behind this code: Immobilizer Systems and ECU Pairing
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