DTC B1576: EGI Control Module EEPROM

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis start condition:

Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.

DTC detecting condition:

ECM malfunctioning
Failed to access ROM in ECM during key registration.

Trouble symptom:

Engine will not start.
The security indicator illuminates.

CAUTION:

When the ECM is replaced, registration of the immobilizer system is required. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

PERFORM ECM REGISTRATION .
Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Is registration complete?

Yes : Finish the diagnosis.

No : Go to 2.
PERFORM ECM REGISTRATION .
Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Is registration complete?

Yes : Finish the diagnosis.

No : Go to 3.
PERFORM ECM REGISTRATION .
Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Is registration complete?

Yes : Finish the diagnosis.

No : Refer to "Correspondence table when registration is not possible" in the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. If the registration still does not work properly, replace the ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>ENGINE CONTROL MODULE (ECM)