DTC B1577 IMM Control Module EEPROM: DTC Detecting Condition

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 PERFORM IGNITION KEY REGISTRATION. Perform registration to all keys used for the vehicle. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".	Is registration of all keys complete?	Make sure it is possible to start the engine with all keys that have been taught. 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 "REGISTRATION MANUAL FOR IMMOBILIZER".	Is registration of all keys complete?	Make sure it is possible to start the engine with all keys that have been taught. 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 "REGISTRATION MANUAL FOR IMMOBILIZER".	Is registration of all keys complete?	Make sure it is possible to start the engine with all keys that have been taught. This completes the work.	Replace the body integrated unit. Refer to BODY INTEGRATED UNIT . Register all ignition keys (transponders). Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".