Basic Diagnostic Procedure

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

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. Press the LOCK button of the keyless 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: flashes twice within 0.5 seconds, in 2 second intervals / When monitoring lag is set to 30 seconds: flashes 3 times within 1 second, in 0.4 second intervals.	Go to step 5.	Go to step 3 .
3 CHANGE 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 4.	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 . >
4 CHECK SETTING CHANGE OF SECURITY SYSTEM. Remove the key from ignition switch, and then close all doors. Press the LOCK button of the keyless 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: flashes twice within 0.5 seconds, in 2 second intervals / When monitoring lag is set to 30 seconds: flashes 3 times within 1 second, in 0.4 second intervals.	Go to step 5.	Check the security indicator light circuit. < Ref. to CHECK SECURITY INDICATOR LIGHT CIRCUIT , INSPECTION, Security System . >
5 CHECK SECURITY SYSTEM OPERATION. Press the LOCK button of keyless transmitter, and wait for 30 seconds.	Does the security indicator light blink twice within 0.5 seconds in 2 second intervals?	Go to step 6.	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
6 CHECK SECURITY ALARM OPERATION. Unlock all doors using the door lock switch on driver's door. Open any door or rear gate.	Does the security alarm operate when opening any door or rear gate?	Go to step 7.	Check the door switch or rear gate latch switch. < Ref. to CHECK DOOR SWITCH , INSPECTION, Security System . >
7 CHECK SECURITY ALARM OPERATION. Check the security alarm operation.	Do all security alarms operate? / Horn sound / Hazard lights flash / Security indicator light illuminates	Go to step 8.	Check the horn. < Ref. to CHECK HORN , INSPECTION, Security System . > Check the hazard light. < Ref. to CHECK HAZARD LIGHT OPERATION , INSPECTION, Security System . >
8 CHECK SECURITY ALARM CANCEL OPERATION. Press any button of transmitter while the security alarm is operating. Or turn the ignition switch to ON.	Do all security alarms stop? / Horn / Hazard lights	Go to step 9.	Check the ignition switch circuit. < Ref. to CHECK IGNITION SWITCH CIRCUIT , INSPECTION, Security System . >
9 CHECK SECURITY SYSTEM CONDITION MEMORY. Check that the system functions properly even when the battery is not connected temporarily. < Ref. to CHECK SECURITY SYSTEM CONDITION MEMORY , INSPECTION, Security System . >	Does the system function properly when the battery is not connected temporarily?	Go to step 10.	Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . >
10 CHECK IMPACT SENSOR (DEALER OPTION). Check the sensibility 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 sensitivity. < Ref. to IMPACT SENSITIVITY ADJUSTMENT , ADJUSTMENT, Impact Sensor . >

NOTE: If the horn sounds when the security is turned on (monitor condition) using the keyless transmitter, check the function setting of the body integrated unit. As a cause, it is possible that the impact sensor present (ON) / not present (OFF) setting is set to ON in the customization function though there is no impact sensor. Refer to USER CUSTOMIZING