DTC B1575 Incorrect Immobilizer Key

DTC DETECTING CONDITION:

Incorrect immobilizer key (use of unregistered key in body integrated unit)

CAUTION: When the body integrated unit 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 IGNITION KEY REGISTRATION. Using the Subaru Select Monitor, check the number of registered ignition keys. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.	Is one or more ignition key(s) registered?	Go to step 2 .	Register the immobilizer.
2 CHECK IGNITION KEY. Prepare all the pre-registered ignition keys. Insert the ignition key in the ignition switch. Turn the ignition switch to ON. Read the DTC of the body integrated unit. <Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .> Perform the steps 2 to 4 on all the registered ignition keys.	Is DTC B1402 displayed for all ignition keys?	Refer to "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume, and perform the actions for the case that all keys are faulty/lost.	Ignition key unit was defective, or ignition key was not registered.