Basic Diagnostic Procedure

1. Turn the ignition switch to ON.
2. Read the DTC of [Body Control] using the Subaru Select Monitor. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)

Are any DTCs displayed?

Yes  : Perform the diagnosis for the displayed DTCs. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST

No  : Go to  2.

Using the Subaru Select Monitor, display the following items in the [Data monitor] of [Body Control]. Ref. to COMMON (DIAGNOSTICS)>DATA MONITOR

• [Driver's door SW input]
• [P-door SW input]
• [Rear right door SW input]
• [Rear left door SW input]
• [R Gate SW input]
• [Hood Switch Close-side]

Does the display switch between [OFF] ←→ [ON] when each door or the front hood is opened/closed?

Yes  : Go to  3.

No  : Check the following parts.

• Door switches: Ref. to SECURITY AND LOCKS>DOOR LOCK CONTROL SYSTEM>INSPECTION>CHECK DOOR SWITCH 
• Trunk lid latch switch: Ref. to SECURITY AND LOCKS>TRUNK LID LATCH AND ACTUATOR ASSEMBLY>INSPECTION 
• Hood switch: Ref. to SECURITY AND LOCKS>FRONT HOOD LOCK ASSEMBLY>INSPECTION 

Using Subaru Select Monitor, display [Security Alarm Setup] in [Data monitor] of [Body Control]. Ref. to COMMON (DIAGNOSTICS)>DATA MONITOR

Is [Security Alarm Setup] set to [ON]?

Yes  : Go to  5.

No  : Go to  4.

Using Subaru Select Monitor, change the [Security Alarm Setup] to [ON]. Ref. to SECURITY AND LOCKS>SECURITY SYSTEM>INSPECTION>SECURITY SYSTEM ON/OFF SETTING 

Is setting change completed correctly?

Yes  : Go to  5.

No  : Replace the body integrated unit. Ref. to BODY CONTROL/COMMUNICATION SYSTEM>BODY INTEGRATED UNIT

Check the operation of the keyless entry system or keyless access system.

Does the keyless entry system or keyless access system operate normally?

Yes  : Go to  6.

No  : Check the keyless entry system or keyless access system.

• Keyless entry system: Ref. to SECURITY AND LOCKS>KEYLESS ENTRY SYSTEM>INSPECTION 
• Keyless access system: Ref. to SECURITY AND LOCKS>KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM>INSPECTION 

1. Turn the ignition switch to OFF and close all doors and front hood.
2. Check the status of security indicator light.
3. Press the LOCK button of the keyless transmitter or access key.
4. Check the security indicator light blinking patterns.

Is the security indicator light blinking patterns as follows?

• Before pressing the LOCK button: Blinks once every 3 seconds
• After pressing the LOCK button:
  • When monitoring lag is set to 0 seconds, blinks twice within 0.5 seconds at 2 second intervals.
  • When monitoring lag is set to 30 seconds, blinks once every 0.4 seconds for 30 seconds, then blinks twice within 0.5 seconds at 2 second intervals.

Yes  : Go to  7.

No  : Check the security indicator light. Ref. to SECURITY AND LOCKS>SECURITY SYSTEM>INSPECTION>CHECK SECURITY INDICATOR LIGHT CIRCUIT 

1. Check that the security indicator light blinks twice within 0.5 seconds at 2 second intervals.
2. Operate the driver's door lock switch to the UNLOCK side.
3. Open one of the doors.

Does the security alarm operate, the horn sound and the hazard light blink?

Yes  : Go to  8.

No  : Check the following parts.

• Horn: Ref. to SECURITY AND LOCKS>SECURITY SYSTEM>INSPECTION>CHECK HORN 
• Hazard light: Ref. to SECURITY AND LOCKS>SECURITY SYSTEM>INSPECTION>CHECK HAZARD LIGHT OPERATION 

Press any button of the transmitter or access key while the security alarm is operating.

Do the horn sound and the blinking of the hazard light stop?

Yes  : Go to  9.

No  : Replace the body integrated unit. Ref. to BODY CONTROL/COMMUNICATION SYSTEM>BODY INTEGRATED UNIT

1. Press the UNLOCK button of the keyless transmitter or access key.
2. Change the setting of security system. Ref. to SECURITY AND LOCKS>SECURITY SYSTEM>INSPECTION>SECURITY SYSTEM ON/OFF SETTING 

Is setting change completed correctly?

Yes  : Restore the security system settings to those before the diagnosis and finish the diagnosis.

No  : Check the door lock switch circuit. Ref. to SECURITY AND LOCKS>DOOR LOCK CONTROL SYSTEM>INSPECTION>CHECK DOOR LOCK SWITCH