Check Daytime Running Light System (Model With SRH)

1. Turn the ignition switch to OFF.
2. Check the fuse on the upstream of the daytime running light relay.

Is the fuse OK?

Yes:  Go to  2.

No:  Replace the fuse.

Check the daytime running light relay. Refer to LIGHTING SYSTEM>RELAY AND FUSE>INSPECTION .

Is the relay OK?

Yes:  Go to  3.

No:  Replace the relay.

Read the DTC of body integrated unit using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Is DTC displayed?

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

No:  Go to  4.

Display the following items using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

• [EPB operating status]
• [Shift Position]
• [Lighting II Switch Input]

Is the input signal normal?

Yes:  Go to  5.

No:  Check the defective part.

1. Start the engine.
2. Release the parking brake and place the shift position to other than "P" range.
3. Display the [Daytime Running Light (Alternate System) Output] data using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display of [Daytime Running Light (Alternate System) Output] switch between [OFF] ←→ [ON] when the lighting switch is switched from the OFF position to the II (HEAD) position?

Yes:  Go to  6.

No:  Replace the body integrated unit. Refer to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

1. Disconnect the headlight connector.
2. Apply battery voltage to the DRL terminal input of the headlight unit.

   Terminals 

   NO. 9 (+) - NO. 3 (-):

Does the daytime running light illuminate?

Yes:  Go to  7.

No:  Replace the headlight. Refer to LIGHTING SYSTEM>HEADLIGHT ASSEMBLY .

1. Disconnect the connectors of body integrated unit, daytime running light relay and headlight.
2. Check each harness.

   Connector & terminal 

   (B287) No. 5 - (B225) No. 57:

   (B487) No. 9 - (B225) No. 60:

   (B477) No. 9 - (B225) No. 60:

Is harness normal?

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

No:  Repair or replace the harness.