2009 Acura CSX Base, StandardFACTORY OEM SERVICE PROCEDURE

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.
  1. Remove these items
  2. Disconnect the air hose from the heater unit (see step 2 on DRIVER'S AIR MIX CONTROL MOTOR REPLACEMENTΒ ) Keep grip on air hose while doing following procedures to assist in removal of sensor
  3. Disconnect the connector (A) from the Humidity/in-car temperature sensor (B)

    View from topΒ 

    Fig 1: Identifying Humidity/In-Car Temperature Sensor And Connector
    G05988677Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. 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
    G05988678Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. 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
    G05988679Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Install the sensor in the reverse order of removal
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.