Subaru Crosstrek Service Manual: Dtc b1405 scu collation
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1405 SCU COLLATION
DTC DETECTING CONDITION:
Reference code incompatibility between security control module and body integrated unit
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.CHECK DTC.
Read the DTC of the body integrated unit. Read Diagnostic Trouble Code (DTC)">
Is any of DTC B1406 or B1409 detected?
Perform the diagnosis according to DTC.
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1405 SCU COLLATION">Go to Step 2.
2.PERFORM SECURITY CONTROL MODULE REGISTRATION.
Perform security control module registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Currently, it is normal. (Security control module registration is not complete.)
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1405 SCU COLLATION">Go to Step 3.
3.CHECK DTC.
1) Perform the Clear Memory Mode. Clear Memory Mode">
2) Read the DTC of the body integrated unit. Read Diagnostic Trouble Code (DTC)">
Is any of DTC B1406 or B1409 detected?
Perform the diagnosis according to DTC.
Replace the security control module. Security Control Module">
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