2008 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Wiper Deicer System: Inspection

INSPECTION CHART

Symptom Repair order
Wiper deicer does not operate.
  1. Fuse (F/B No. 4, 9)
  2. Wiper deicer relay
  3. Wiper deicer switch
  4. Wiring harness
  5. Body integrated unit

Refer to "REAR WINDOW DEFOGGERΒ " for inspection.

< Ref. to INSPECTIONΒ , Rear Window Defogger. >

NOTE: Wiper deicer system can be customized on the Subaru Select Monitor.
INSPECTION CHART

System name Initial setting Customize setting
Wiper deicer timer OFF after 15 min. Continuous operation(1)
(1) When one of the following conditions occurs, continuous operation is suspended and turned off after 15 min.
  • Ambient temperature at 5Β°C (41Β°F) or more continues for 10 sec.
  • Malfunction occurs on ambient sensor.
  • Vehicle speed below 15 km/h (9 MPH) continues 15 min.
  • Malfunction occurs in CAN communication.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.