Check Turn Signal Light System

CHECK TURN SIGNAL LIGHT OPERATION .
1. Turn the ignition switch to ON.
2. Turn the turn signal light switch LH and RH to ON.
Does the turn signal light blink?

Yes : The turn signal light system is normal.

No : Go to 2 .
CHECK CURRENT DATA .
Display the data of [Left turn signal input] and [Right turn signal input] using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display change as [OFF] ←→ [ON], when the turn signal switch is turned from OFF to ON?

Yes : Check the body integrated unit and replace it if defective.
- Inspections: Ref. to BODY CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .
- Replacement: Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
No : Go to 3 .
CHECK TURN SIGNAL SWITCH .
Check the turn signal switch. Ref. to LIGHTING SYSTEM>Combination Switch (Light)>INSPECTION .

Is the turn signal switch OK?

Yes : Go to 4 .

No : Replace the combination switch (light). Ref. to LIGHTING SYSTEM>COMBINATION SWITCH (LIGHT) .
CHECK HARNESS .
1. Disconnect the connectors of body integrated unit and combination switch (light).
2. Check the harness between body integrated unit and combination switch (light).
  Connector and terminal
  
  (i171) No. 33 - (i73) No. 13:
  
  (i171) No. 38 - (i73) No. 15:
Is harness normal?

Yes : Check the body integrated unit and replace it if defective.
- Inspections: Ref. to BODY CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .
- Replacement: Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
No : Repair or replace the harness.