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Check Ignition Switch Illumination

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTICS PROCEDURE

Step Check Yes No
1 CHECK IGNITION CIRCUIT. 
Check the ignition circuit. <Ref. to CHECK IGNITION SWITCH CIRCUIT , INSPECTION, Security System.>
Is the switch circuit normal? Go to step . Repair or replace.
2 CHECK DOOR SWITCH CIRCUIT. 
Inspect door switch circuit. <Ref. to CHECK DOOR SWITCH , INSPECTION, Keyless Entry System.>
Is the switch circuit normal? Go to step . Repair or replace.
3 CHECK FUSE. 
Remove and visually check fuse No. 14 (in the main fuse box).
Is the fuse blown out? Replace the fuse with a new part. Go to step .
4 CHECK HARNESS. 
  1. Disconnect the ignition switch illumination connector.
    NOTE: The ignition switch illumination is integrated into the immobilizer antenna.
  2. Measure the voltage between ignition switch illumination connector and chassis ground.

    Connector & terminal 

    (i60) No. 2 (+) - Chassis ground (-): 

Is the voltage 10 V or more? Go to step . Check the harness for open or short circuits between the ignition switch illumination and fuse.
5 CHECK IGNITION SWITCH ILLUMINATION CIRCUIT. 
  1. Disconnect the connector of body integrated unit.
  2. Check the harness between body integrated unit and ignition switch illumination.

    Connector & terminal 

    (i171) No. 9 - (i60) No. 6: 

Is harness normal? Go to step . Check the harness for open circuits and shorts between the body integrated unit and ignition switch illumination.
6 CHECK IGNITION SWITCH ILLUMINATION BULB. 
Apply battery voltage between terminals of the bulb.
Terminals 
No. 2 (+) - No. 6 (-): 
Does the bulb illuminate? Replace the body integrated unit. <Ref. to BODY INTEGRATED UNIT .> Replace the immobilizer antenna. <Ref. to REMOVAL , Immobilizer Antenna.>