Introduction

This describes a diagnostic test for Acura technicians investigating ... well, issues with the climate control, or other sensors. Value to the owner/operator = minimal. But it's fun to try out.

Let's have at it.

Image 1/3: On the heating/cooling control, press and hold  the AUTO and DUAL buttons. Image 2/3: Turn the ignition key to Start (III) to start the vehicle normally. (The key returns to the ON (II) position after starting.) Image 3/3: Sensor values start displaying on the climate control display.
  • Insert the key in the ignition.

  • On the heating/cooling control, press and hold the AUTO and DUAL buttons.

  • Turn the ignition key to Start (III) to start the vehicle normally. (The key returns to the ON (II) position after starting.)

  • Sensor values start displaying on the climate control display.

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Image 1/2: 1. In-car temperature in Celsius. Image 2/2: 2. Ambient temperature in Celsius.
  • Cycle through the displayed values with the REAR DEFROSTER button. The code for display displays in the left (Driver's temp) segment, alternating the code number and the value.

  • 1. In-car temperature in Celsius.

  • 2. Ambient temperature in Celsius.

  • 3. Solar radiation sensor: Dark=00, flashlight=04, cloudy=10, sunny=65.

  • 4. Engine coolant temperature.

  • 5. Evaporator outlet temp in Celsius.

  • 6. Driver's air mix opening (% of opening).

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  • 7. Passenger's air mix opening.

  • 8. Vehicle speed in Km/h.*

    • *2004-2005 model year. Later years shows 00 for 0-9 Km/h, 01 for 10-19 Km/h, etc.

  • 9. Vent air out temperature.

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Conclusion

More information on diagnostic tests and self-repair can be found here on iFixit, and tsx.acurazine.com.

2 other people completed this guide.

David Spalding

Member since: 11/12/2015

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