DTC B1406 SCU_EEPROM_NG: DTC Detecting Condition
- Defective security control module
- ROM of security control module cannot be accessed
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 security control module. Refer to SECURITY CONTROL MODULE . Register all ignition keys (transponders). Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER". |
NOTE:
When the security control module and body integrated unit are replaced at a time, the immobilizer can not be registered. In this case, it is necessary to rewrite the ID into the body integrated unit.