DTC B1406: SCU_EEPROM

DTC detecting condition:

Defective security control module
ROM of security control module cannot be accessed

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

PERFORM SECURITY CONTROL MODULE REGISTRATION.
1. Perform security control module registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.
2. Perform the Clear Memory Mode. Ref. to IMMOBILIZER (DIAGNOSTICS)>CLEAR MEMORY MODE .
3. Read the DTC of the body integrated unit. Ref. to IMMOBILIZER (DIAGNOSTICS)>READ DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC B1406 displayed?

Yes: Replace the security control module. Ref. to SECURITY AND LOCKS>SECURITY CONTROL MODULE .

No: Finish the diagnosis.