DTC P1577 IMM Control Module EEPROM: DTC Detecting Condition

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Body integrated unit malfunctioning
Failed to access the ROM inside the body integrated unit.

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 PERFORM IGNITION KEY REGISTRATION. Perform registration to all keys used for the vehicle. Refer to the PC application help for Subaru Select Monitor.	Is registration of all keys complete?	Using the all registered keys, make sure that the engine can start. This completes the work.	Go to step 2 .
2 PERFORM IGNITION KEY REGISTRATION. Perform registration to all keys used for the vehicle. Refer to the PC application help for Subaru Select Monitor.	Is registration of all keys complete?	Using the all registered keys, make sure that the engine can start. This completes the work.	Go to step 3 .
3 PERFORM IGNITION KEY REGISTRATION. Perform registration to all keys used for the vehicle. Refer to the PC application help for Subaru Select Monitor.	Is registration of all keys complete?	Using the all registered keys, make sure that the engine can start. This completes the work.	Replace the body integrated unit < Refer to BODY INTEGRATED UNIT . > Register all ignition keys (transponders). Refer to the PC application help for Subaru Select Monitor.