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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.

STEPCHECKYESNO

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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