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.
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HOMESERVICE MANUALSSUBARU2010OUTBACK SPORT F4-2.5L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCAMSHAFT POSITION SENSORTESTING AND INSPECTION
2010 Subaru Outback Sport F4-2.5L SOHC
Camshaft Position Sensor: Testing and Inspection
2010 Subaru Outback Sport F4-2.5L SOHCSECTION Testing and Inspection
Camshaft Position Sensor
INSPECTION
1. Prepare an oscilloscope.
2. Remove the lower inner trim of passenger's side.
3. Turn over the floor mat of passenger's seat.
4. Remove the protect cover.
5. Remove the nuts and bolts which hold the ECM to the bracket.
6. Connect the probe to ECM connector.
7. Start the engine and let it idle.
8. Check the pattern is the same as the waveform and voltage shown below.
INSPECTION
1. Prepare an oscilloscope.
2. Remove the lower inner trim of passenger's side.
3. Turn over the floor mat of passenger's seat.
4. Remove the protect cover.
5. Remove the nuts and bolts which hold the ECM to the bracket.
6. Connect the probe to ECM connector.
7. Start the engine and let it idle.
8. Check the pattern is the same as the waveform and voltage shown below.
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.