Basic Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Subaru Outback and 2007 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

BASIC DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 INITIAL CHECK. Check keyless entry system.	Does the keyless entry system operate normally?	Go to step 2.	Check keyless entry system. < Ref. to INSPECTION , Keyless Entry System. >
2 CHECK SECURITY ON/OFF SETTING. Remove the key from ignition switch, and then close all doors. Press the UNLOCK button of the keyless transmitter. Check the security indicator light blinking patterns.	Is the security indicator light blinking patterns as follows? Model with immobilizer: Blinks in every 3 seconds Model without immobilizer: Always OFF	Go to step 3.	Check the security indicator light circuit. < Ref. to CHECK SECURITY INDICATOR LIGHT CIRCUIT , INSPECTION, Security System. >
3 CHECK SECURITY ON/OFF SETTING. Press the LOCK button of the transmitter. Check the security indicator light blinking patterns.	Is the security indicator light blinking patterns as follows? When monitoring lag is set to 0 seconds: Blinks twice within 0.5 seconds at 2 seconds intervals. When monitoring lag is set to 30 seconds: Blinks three times within 1 second in 0.4 seconds intervals.	Go to step 6.	Go to step 4.
4 CHANGE THE SETTING OF SECURITY SYSTEM. Change the setting of security system to ON. < Ref. to SECURITY SYSTEM ON/OFF SETTING , INSPECTION, Security System. >	Is setting change completed correctly?	Go to step 5.	Check the ignition switch circuit. < Ref. to CHECK IGNITION SWITCH CIRCUIT , INSPECTION, Security System. > Check the door lock switch circuit. < Ref. to CHECK DOOR LOCK SWITCH , INSPECTION, Keyless Entry System. >
5 CHECK THE SETTING CHANGE OF SECURITY SYSTEM. Remove the key from ignition switch, and then close all doors. Press the LOCK button of the transmitter. Check the security indicator light blinking patterns.	Is the security indicator light blinking patterns as follows? When monitoring lag is set to 0 seconds: Blinks twice within 0.5 seconds at 2 seconds intervals. When monitoring lag is set to 30 seconds: Blinks three times within 1 second in 0.4 seconds intervals.	Go to step 6.	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
6 CHECK SECURITY SYSTEM OPERATION. Press the LOCK button of keyless transmitter, and wait for 30 seconds.	Is the blinking pattern of security indicator light blink twice within 0.5 seconds in 2 second cycles?	Go to step 7.	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
7 CHECK SECURITY SYSTEM CANCEL OPERATION. Insert the key to the door key cylinder to unlock.	Is the security indicator light blinking patterns as follows? Model with immobilizer: Blinks in every 3 seconds Model without immobilizer: Always OFF	Press the LOCK button of keyless transmitter, and wait for 30 seconds. Go to step 8.	Check the door key cylinder circuit. < Ref. to CHECK DOOR KEY CYLINDER SWITCH AND CIRCUIT , INSPECTION, Security System. >
8 CHECK SECURITY ALARM OPERATION. Unlock all doors using the door lock switch on driver's door. Open any door, trunk or rear gate.	Does the security alarm operate when opening any door, trunk or rear gate?	Go to step 9.	Check the door switch. < Ref. to CHECK DOOR SWITCH , INSPECTION, Security System. > Check the trunk lid switch or rear gate latch switch. < Ref. to CHECK TRUNK LID SWITCH (SEDAN) OR REAR GATE LATCH SWITCH (WAGON) , INSPECTION, Security System. >
9 CHECK SECURITY ALARM OPERATION. Check the security alarm operation.	Does all security alarm operate? Horn sounds Hazard light blinks Security indicator light blinks	Go to step 10.	Check the horn. < Ref. to CHECK HORN , INSPECTION, Security System. > Check the hazard light. < Ref. to CHECK HAZARD LIGHT OPERATION , INSPECTION, Security System. >
10 CHECK SECURITY ALARM CANCEL OPERATION. Press any button of transmitter while operating security alarm. Or turn the ignition switch to OFF-ON three times.	Does all security alarm stop? Horn Hazard light	Go to step 11.	Check the ignition switch circuit. < Ref. to CHECK IGNITION SWITCH CIRCUIT , INSPECTION, Security System. >
11 CHECK SECURITY SYSTEM CONDITION MEMORY. Check that the system function properly when the battery is not connected temporally. < Ref. to CHECK SECURITY SYSTEM CONDITION MEMORY , INSPECTION, Security System. >	Does the system function properly when the battery is not connected temporally?	Go to step 12.	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
12 CHECK IMPACT SENSOR. Check the sensitivity of impact sensor. < Ref. to CHECK IMPACT SENSOR , ADJUSTMENT, Impact Sensor. >	Is the sensibility set properly?	Press the UNLOCK button of keyless transmitter, and finish the diagnosis.	Adjust the sensibility. < Ref. to IMPACT SENSITIVITY ADJUSTMENT , ADJUSTMENT, Impact Sensor. >

CAUTION:

Siren YES/NO setting
The {Siren YES/NO} setting of the item {Unit customization} of the Subaru Select Monitor always shall be set to "NO". If it is set to "YES", the horn of the security alarm will not sound.

NOTE: Check the function setting of body integrated unit if any of the following symptoms appear. < Ref. to BASIC DIAGNOSTIC PROCEDURE . >

The horn does not sound even when the security system operates.
The horn sounds when setting the security to ON using the keyless transmitter.