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.
2015 Subaru Outback 3.6R LimitedFACTORY OEM SERVICE PROCEDURE
Main Relay: Inspection
- Check that the main relay has no deformation, cracks or other damages.
- Measure the resistance between main relay terminals.
Terminal No. Standard 1 and 3 1 MΩ or more 2 and 4 80.55 - 98.45 Ω (when 20°C (68°F)) - Connect battery positive terminal to terminal No. 2 and battery ground terminal to terminal No. 4, and measure the resistance between the main relay terminals.
Terminal No. Standard 1 and 3 Less than 1 Ω
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:
- • 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.