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HOMESERVICE MANUALSMAZDA2009CX-9 FWD V6-3.7LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSOLAR SENSORTESTING AND INSPECTION
2009 Mazda CX-9 FWD V6-3.7L

Solar Sensor: Testing and Inspection

2009 Mazda CX-9 FWD V6-3.7LSECTION Testing and Inspection



SOLAR RADIATION SENSOR INSPECTION

1. Using a tester, connect the positive (+) lead to solar radiation sensor terminal A, the negative (-) lead to terminal B or C, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- except infinity ohms

2. Block the light to the solar radiation sensor, connect the positive (+) lead of a tester to solar radiation sensor terminal B or C and negative (-) lead to terminal A, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- infinity ohms (no continuity)

3. Expose the solar radiation sensor to natural sunlight.






4. Using a tester, connect the positive (+) lead to solar radiation sensor terminal B or C, the negative (-) lead to terminal A, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- except infinity ohms

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.