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 MANUALSACURA2008CSX BASE, K20A3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (CLIMATE CONTROL SYSTEM)CLIMATE CONTROLHUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT

2008 Acura CSX Base, K20A3

Humidity/In-car Temperature Sensor Replacement

2008 Acura CSX Base, K20A3SECTION Humidity/In-car Temperature Sensor Replacement

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

Remove these items
- Driver's dashboard undercover (see DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION )
- Remote slot (with keyless access) (see ENGINE START/STOP SWITCH TEST/REPLACEMENT )
Disconnect the air hose from the heater unit (see step 2 on DRIVER'S AIR MIX CONTROL MOTOR REPLACEMENT ) Keep grip on air hose while doing following procedures to assist in removal of sensor
Disconnect the connector (A) from the Humidity/in-car temperature sensor (B)
View from top

Fig 1: Identifying Humidity/In-Car Temperature Sensor And Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Unhook the left lock tab (A) of the humidity/in-car temperature sensor by pushing your thumb (B) between the sensor and tab(C)

Fig 2: Identifying Humidity/In-Car Temperature Sensor And Tab
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Pull sensor toward steering column to unlock right lock tab Maintain the pressure with thumb to keep left tab unlocked while unhooking right lock tab then pull out the sensor

Fig 3: Pulling Sensor Toward Steering Column To Unlock Right Lock Tab
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the sensor in the reverse order of removal

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.