Subaru Crosstrek Service Manual: Dtc b1406 scu_eeprom
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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.
| STEP | CHECK | YES | NO |
1.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. Clear Memory Mode">
3) Read the DTC of the body integrated unit. Read Diagnostic Trouble Code (DTC)">
Is DTC B1406 detected?
Replace the security control module. Security Control Module">
Finish the diagnosis.
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