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TuningBot DTC Database · v4.37.15

P1623 Suzuki - Ignition key not programmed

Manufacturer-specific interpretation for Suzuki. All interpretations of P1623

P · PowertrainImmobilizerDriveability: No_startOBD2

What P1623 means

P1623
Ignition key not programmed Suzuki · immobilizer Data confidence 62%

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.

Possible causes

  • Ignition key not programmed
  • incorrect ignition key
  • immobilizer control module
  • ECM

Related and nearby codes

How to read P1623

P

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.

Other file services

ECU tuningStage 1 dyno results for Suzuki engines See the results →

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