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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSWINDOW GLASS & MIRRORSWIPER DEICER SYSTEMINSPECTIONSYSTEM INSPECTION
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans

System Inspection

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION System Inspection
NOTE:
  • The wiper deicer does not operate when the ambient temperature becomes 5°C (41°F) or more. 
  • The wiper deicer operates with the rear window defogger at the same time. 
  • It is possible to perform a forced operation if you keep holding the rear window defogger switch for 3 seconds or more. 
Symptoms Inspection order
Wiper deicer does not operate.
  1. Check the fuse.
  2. Check the wiper deicer relay.
  3. Check the wiper deicer switch.
  4. Check the heat wire.
  5. Check the wiring harness.
  6. Check body integrated unit.
NOTE:
  • Wiper deicer system can be customized using the Subaru Select Monitor, when the customize setting [Auto A/C Setting] of the body integrated unit is set to With. 
  • Set the system using the Rr Defogger op. mode, and setting will be the same as rear defogger system setting. 
System name Initial setting Customize setting
Rr Defogger op. mode Normal Continuous(1)
(1) When one of the following conditions occurs, the continuous operation is suspended and turned to the normal operation.
  • Ambient temperature at 5°C (41°F) or more continues for 10 seconds.
  • Ambient temperature sensor malfunction continues for 10 seconds.
  • Vehicle speed 15 km/h (9 MPH) or less
  • CAN communication malfunction continues for 10 seconds
  • Battery voltage remains at 10 V or less for 30 seconds.
  • SI-DRIVE [I] mode driving continues for 10 seconds.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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