P · PowertrainImmobilizerDriveability: No_startOBD2
What P1623 means
P1623
Ignition key not programmed
Suzuki · immobilizer
Data confidence62%
The control module detected a fault associated with the Ignition key not programmed circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
623
Specific fault index within the subsystem.
Frequently asked questions about P1623
What does P1623 mean?
Ignition key not programmed. The control module detected a fault associated with the Ignition key not programmed circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.
Is P1623 generic or manufacturer-specific?
P1623 is a manufacturer-specific code. In this database it is documented for: Suzuki. The same number can mean something different on other brands.
Can TuningBot remove P1623 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.