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.
2008 Subaru Outback F4-2.5L SOHCFACTORY OEM SERVICE PROCEDURE
Ignition Control Module: Testing and Inspection
Ignition Coil And Ignitor Assembly
INSPECTION
Check the secondary coil resistance using a tester. Replace if defective.
CAUTION:
- If the resistance is extremely low, it indicates the presence of a short-circuit.
- Ignitor is integrated with the coil. Therefore the resistance of primary side coil cannot be measured.
Specified resistance:
[Secondary side]
Between (A) and (B): 11.2 k ohms ± 15%
Between (C) and (D): 11.2 k ohms ± 15%
INSPECTION
Check the secondary coil resistance using a tester. Replace if defective.
CAUTION:
- If the resistance is extremely low, it indicates the presence of a short-circuit.
- Ignitor is integrated with the coil. Therefore the resistance of primary side coil cannot be measured.
Specified resistance:
[Secondary side]
Between (A) and (B): 11.2 k ohms ± 15%
Between (C) and (D): 11.2 k ohms ± 15%
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.