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 MANUALSACURA2011TSX SPORT WAGON L4-2.4LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSSUNLIGHT SENSOR TEST
2011 Acura TSX Sport Wagon L4-2.4L
Sunlight Sensor Test
2011 Acura TSX Sport Wagon L4-2.4LSECTION Sunlight Sensor Test
Sunlight Sensor Test
NOTE:
- When prying with a flat-tip screwdriver, wrap it with protective tape to prevent damage.
- Before testing the sensor, check for climate control DTCs Initial Inspection and Diagnostic Overview.
1. Remove the sunlight sensor (A) Service and Repair.
2. Turn the ignition switch to ON (II). Measure the voltage between the terminals with the (+) probe on terminal No. 4 and the (-) probe on the terminal No. 2 with the connector connected.
NOTE: The voltage readings will not change under the light of a flashlight or a fluorescent lamp. Voltage should be:
- 3.6-3.7 V or more with the sensor out of direct sunlight.
- 3.3-3.5 V or less with the sensor in direct sunlight.
3. If the voltage is not as specified, replace the sunlight sensor Service and Repair.
RENDER: 1.0x
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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.