Check Daytime Running Light System (Halogen Headlight Model)

CHECK HEADLIGHT ILLUMINATION.
1. Turn the ignition switch to ON.
2. Turn the lighting switch to the switch II (HEAD) position.
3. Turn the dimmer & passing switch to the switch UP position.
Does the headlight (high beam) illuminate?

Yes : Go to 2.

No : Check the combination switch (light) and headlight bulb.
CHECK BODY INTEGRATED UNIT.
Read the DTC of body integrated unit using Subaru Select Monitor.

NOTE: For detailed operation procedures, refer to "Help" of application.

Is DTC displayed?

Yes : Perform the diagnosis according to DTC. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION .

No : Go to 3.
CHECK CURRENT DATA.
Display the following items using Subaru Select Monitor.
- [Parking Brake Switch Input]
- [Shift Position]
- [Lighting II Switch Input]
Is the input signal normal?

Yes : Go to 4.

No : Check the defective part.
CHECK DAYTIME RUNNING LIGHT RELAY.
1. Turn the ignition switch to OFF.
2. Check the daytime running light relay.
Is the daytime running light relay normal?

Yes : Go to 5.

No : Replace the daytime running light relay.
CHECK HARNESS.
1. Disconnect the connectors of body integrated unit, daytime running light relay and headlight.
2. Check each harness.
  Connector and terminal.
  
  (B287) No. 5 - (B225) No. 14:
  
  (B583) No. 3 - (B225) No. 18:
  
  (B487) No. 4 - (B225) No. 17:
  
  (B477) No. 4 - (B225) No. 21:
Is harness normal?

Yes : Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

No : Repair or replace the harness.