Without Keyless Access With Push Button Start System

CAUTION: When the body integrated unit (except for C5 model) or the immobilizer CONTROL MODULE (C5 model) is replaced, registration of the immobilizer system is required. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. For more details contact an autherized Subaru dealership.

PERFORM CUSTOMER INTERVIEW .
Ask the customer when and how the trouble occurred using the interview check list. Ref. to IMMOBILIZER (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW

Did you interview the customer?

Yes: Go to 2.

No: Perform the interview, and Go to 2.
CONFIRM NUMBER OF REGISTERED IMMOBILIZER KEY .
Confirm the number of registered immobilizer key. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. For more details contact an autherized Subaru dealership.

Is the number of registration 0?

Yes: Register the immobilizer system.

No: Go to 3.
CHECK SECURITY INDICATOR LIGHT .
1. Remove the ignition key from ignition switch.
2. Wait at least 60 seconds.
Does the security indicator light blink?

Yes: Go to 4.

No: Check the security indicator light circuit. Ref. to IMMOBILIZER (DIAGNOSTICS)>WARNING LIGHT ILLUMINATION PATTERN .
CHECK KEY SWITCH .
Insert the ignition key in the ignition switch. (OFF or ACC

Does the security indicator light remain blinking?

Yes: Check the key switch circuit. Ref. to IMMOBILIZER (DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION>CHECK KEY SWITCH CIRCUIT .

No: Go to 5.
CHECK SECURITY INDICATOR LIGHT .
Check the security indicator light status in the condition of step 4

Does the security indicator light go off?

Yes: Go to 8.

No: Go to 6.
CHECK SECURITY INDICATOR LIGHT .
Turn the ignition switch to ON

Does the security indicator light go off?

Yes: Go to 8.

No: Go to 7.
CHECK ENGINE START .
Turn the ignition switch to START

Does the starter operate?

Yes: Check the LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

No: Go to 9.
CHECK ENGINE START .
Turn the ignition switch to START

Does the engine start?

Yes: Immobilizer system is normal.

No: Go to 10.
CHECK DTC .
Read the following DTCs using Subaru Select Monitor. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
- [Body Control] (except for C5 model)
  DTC Check
- [Immobilizer] (for C5 model)
  DTC Check
NOTE: Check the Subaru Select Monitor communication if the communication is disabled. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION .

Are any DTCs displayed?

Yes: Record the DTC, time stamp and freeze frame data, and Go to 11.

No: Replace the body integrated unit (except for C5 model) or the immobilizer CONTROL MODULE (C5 model). Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
CHECK DTC .
Read the DTC of [Engine Control System] using the Subaru Select Monitor. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)

DTC Check

NOTE: Check the Subaru Select Monitor communication if the communication is disabled. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION .

Are any DTCs displayed? (Current malfunction)

Yes: Record the DTC, time stamp and freeze frame data, and Go to 11.

No: Perform the diagnosis for engine system. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Basic Diagnostic Procedure>PROCEDURE .
CHECK FREEZE FRAME DATA .
Check the freeze frame data. Ref. to IMMOBILIZER (DIAGNOSTICS)>FREEZE FRAME DATA

Are the data recorded?

Yes: Record the data. Go to 12.

No: Go to 12.
CHECK DTC .
Check the displayed DTC

Are DTCs irrelevant to the immobilizer displayed? (Current malfunction)

Yes: Perform the diagnosis according to DTCs irrelevant to the immobilizer first.

No: Go to 13.
PERFORM DIAGNOSIS .
1. Perform the diagnosis for the displayed DTCs. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .
2. Repair or replace the cause of trouble.
3. Using the Subaru Select Monitor, perform the clear memory. Ref. to COMMON (diag)>CLEAR MEMORY .
  - [Body Control] (except for C5 model)
    Clear memory
  - [Immobilizer] (for C5 model)
    Clear memory
4. Execute the inspection mode. Ref. to IMMOBILIZER (DIAGNOSTICS)>INSPECTION MODE .
5. Read the DTC using Subaru Select Monitor. Ref. to IMMOBILIZER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  - [Body Control] (except for C5 model)
    DTC Check
  - [Immobilizer] (for C5 model)
    DTC Check
Are any DTCs displayed? (Current malfunction)

Yes: Repeat step 13 until DTC is not shown.

No: Finish the diagnosis.