IMMOBILIZER (DIAGNOSTICS) > Basic Diagnostic Procedure

PROCEDURE

1. MODEL WITHOUT KEYLESS ACCESS

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1.CHECK SECURITY INDICATOR LIGHT.

1) Turn the ignition switch to “OFF” or “ACC”.

2) Wait at least 60 seconds.

Does the security indicator light blink?

Check the security indicator light circuit.

2.CHECK KEY SWITCH.

Remove the key from ignition switch.

Does the security indicator light blink within 1 second after removing the key?

Check the key switch circuit.

3.CHECK SECURITY INDICATOR LIGHT.

Turn the ignition switch to ON.

Does the security indicator light go off?

4.CHECK ENGINE START.

Turn the ignition switch to START.

Does the starter operate?

Check the LAN communication circuit.

5.CHECK ENGINE START.

Turn the ignition switch to START.

Does the starter operate?

Check the LAN communication circuit.

6.CHECK ENGINE START.

Turn the ignition switch to START.

Does the engine start?

Immobilizer system is normal.

7.CHECK FOR ANY OTHER DTC ON DISPLAY.

1) Turn the ignition switch to OFF.

2) Connect the Subaru Select Monitor to the data link connector.

3) Turn the ignition switch and Subaru Select Monitor switch to ON.

4) Read DTC’s on the display.

Is the DTC displayed on screen?

Repair the related parts.

8.PERFORM DIAGNOSIS.

1) Inspect using the “Diagnostic Procedure with Diagnostic Trouble Code (DTC)”.

2) Repair the trouble cause.

3) Perform the Clear Memory Mode.

4) Read DTC’s again.

Is the DTC displayed on screen?

Inspect using the “Diagnostic Procedure with Diagnostic Trouble Code (DTC)”.

Finish the diagnosis.

2. MODEL WITH KEYLESS ACCESS

NOTE:

For immobilizer diagnosis of model with keyless access, refer to “Keyless access with push button start system”.