Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
Power Window Control Switch: Inspection: Sub-Switch
SWITCH POWER WINDOW SUB FRONT
- Measure the resistance between terminals of the switch power window sub front.
Preparation tool:
Circuit tester
- Base grade
Terminal No. Inspection conditions Standard 1 - 2
5 - 4OFF Less than 1 Ω 2 - 3
3 - 4
1 - 3
3 - 51 MΩ or more 3 - 2
5 - 4Manual UP Less than 1 Ω 1 - 2 1 MΩ or more 1 - 2
3 - 4Manual DOWN Less than 1 Ω 4 - 5 1 MΩ or more - Other than base grade
Terminal No. Inspection conditions Standard 6 - 5 OFF Less than 1 Ω 2 - 1
2 - 5
2 - 61 MΩ or more 2 - 6 Manual UP Less than 1 Ω 5 - 6
2 - 5
1 - 21 MΩ or more 2 - 6
1 - 2Auto UP Less than 1 Ω 5 - 6
2 - 51 MΩ or more 2 - 5 Manual DOWN Less than 1 Ω 5 - 6
2 - 6
1 - 21 MΩ or more 2 - 5
1 - 2Auto DOWN Less than 1 Ω 5 - 6
2 - 61 MΩ or more - Apply battery voltage between the switch power window sub front terminals to check lighting condition of illumination inside the switch.CAUTION: When applying battery voltage, do not mix up the positive (+) side and the negative (-) side.
Factory Service Tools
Use the Manual With the Right Hardware
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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.