Ignition Switch Illumination: Inspection

CHECK IGNITION SWITCH ILLUMINATION .
1. Turn the ignition switch to ON.
2. Check the lighting condition of the ignition switch illumination.
  Does the ignition switch illumination blink?
  
  Yes : Check the function setting of body integrated unit. Ref. to BODY CONTROL (DIAGNOSTICS)>REGISTRATION BODY INTEGRATED UNIT .
  
  No : Go to 2 .
CHECK IGNITION SWITCH ILLUMINATION OPERATION .
1. Turn the ignition switch to OFF.
2. Open and close the driver's side door.
  When door is opened/closed, does the ignition switch illumination switch between ON ←→ OFF?
  
  Yes : Ignition switch illumination is normal.
  
  No : Go to 3 .
CHECK CURRENT DATA .
Display the [Driver's door SW input] data using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display change to [ON] → [OFF], when the door is opened/closed?

Yes : Go to 4 .

No : Check the door switch circuit. Ref. to SECURITY AND LOCKS>DOOR LOCK CONTROL SYSTEM>INSPECTION>CHECK DOOR SWITCH .
CHECK CURRENT DATA .
Display the [key illumination lamp o/p] data using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display change to [ON] → [OFF], when the door is opened/closed?

Yes : Check the ignition switch illumination circuit, and repair or replace the harness.

No : Check the body integrated unit and replace it if defective. Ref. to BODY CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .