DTC B1577 IMM Control Module EEPROM: Trouble Symptom
WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
- Engine will not start.
- The security indicator illuminates.
CAUTION:
When the body integrated unit (except for C0 and C5 models) or the immobilizer control module (C0 and C5 models) is replaced, registration of the immobilizer system is required. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".
DIAGNOSTICS PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 PERFORM ECM REGISTRATION. Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER". |
Is registration complete? | Finish the diagnosis. | Go to step 2. |
2 PERFORM ECM REGISTRATION.
|
Is registration complete? | Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
|
Replace the body integrated unit (except for C0 and C5 models) <Ref. to BODY INTEGRATED UNIT .> or immobilizer control module (C0 and C5 models) <Ref. to IMMOBILIZER CONTROL MODULE .>. |