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Basic Diagnostic Procedure: Procedure

Step Check Yes No
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? Go to step 2.  Check the security indicator light circuit. Refer to , CHECK SECURITY INDICATOR LIGHT CIRCUIT , INSPECTION, Diagnostics Chart for Security Indicator Light.
2 CHECK KEY SWITCH. 
Remove the key from ignition switch.
Does the security indicator light begin to blink within 1 second after the key is removed? Go to step 3.  Check the key switch circuit. Refer to , CHECK KEY SWITCH CIRCUIT , INSPECTION, Diagnostics Chart for Security Indicator Light.
3 CHECK SECURITY INDICATOR LIGHT. 
Turn the ignition switch to ON.
Does the security indicator light go off? Go to step 5.  Go to step 4. 
4 CHECK ENGINE START. 
Turn the ignition switch to START.
Does the starter operate? Check the LAN communication system. Refer to BASIC DIAGNOSTIC PROCEDURE . Go to step 7. 
5 CHECK ENGINE START. 
Turn the ignition switch to START.
Does the starter operate? Go to step 6.  Check the LAN communication system. Refer to BASIC DIAGNOSTIC PROCEDURE .
6 CHECK ENGINE START. 
Turn the ignition switch to START.
Does the engine start? Immobilizer system is normal. Go to step 8. 
7 CHECK DTC. 
Read the DTC of body integrated unit using Subaru Select Monitor. Refer to , SUBARU SELECT MONITOR .
Is the DTC displayed on screen? Go to step 10.  Replace the body integrated unit. Refer to BODY INTEGRATED UNIT . Register all ignition keys (transponders). Refer to the appropriate "PC application help for Subaru Select Monitor".
8 CHECK DTC. 
Read the DTC relating the ECM using the Subaru Select Monitor. Refer to , SUBARU SELECT MONITOR .
Is the DTC displayed on screen? Go to step 9.  Perform the diagnosis for engine system. Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE for Engine Starting Failure. Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE for Engine Starting Failure. Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE for Engine Starting Failure.
9 CHECK FREEZE FRAME DATA. 
Using the Subaru Select Monitor, check the Freeze Frame Data.
Was the Freeze Frame Data recorded? Record the data. Go to step 10.  Go to step 10. 
10 PERFORM DIAGNOSIS. 
  1. Inspect using the "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Refer to , 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)". Refer to , DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) . Finish the diagnosis.