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  • Ambient Temp Sensor and AC Performance

    Good day,

    Ever since my outside temp sensor stopped working, showing either two horizontal dashes instead on number or showing -30 when it is +45 outside, the AC has been acting funny.

    Went to the Toyota parts department yesterday, and the parts guy was clueless and wanted me to have the car inspected before he can locate the part, so after trying to 'fish' around for a possible sensor, he came up with basically nothing.

    A few questions:

    1- Does anyone have a diagram or photos showing exactly where this sensor is in the engine compartment?
    2- Is it an issue of cleaning it or does it have to be replaced?
    3- Does this sensor have a direct impact on how the automatic AC regulates the temp in the car? From my experience, it does, because the AC cooled differently based on what the outside temperature reading is before I had this problem.

    Thanks in advance for your assistance.

  • #2
    I have taken a look at the photo provided in this thread http://www.pradopoint.com/showthread...ture-Indicator and it looks similar to the one i have, which is mounted on the central strut near the horns, when I pointed this out to the parts guy salesman, he told me it was a speed sensor!!!!! Can someone please send me a close up to show me how this sensor looks like? Cheers.

    Comment


    • #3
      Location as per manual....
      2004 V6 Grande. BLACK -

      Comment


      • #4
        Great thanks.

        Now that I see the diagram, we are indeed talking about the same sensor, the parts guy is an IDIOT! What is the best way to clean this sensor and should I just replace it and get it over with?

        Comment


        • #5
          You shouldn't need to clean it, if you must just wipe it with a wet rag.

          The senor is only for the outside temperature display, if you have climate
          control there is another "solar" sensor on the dash that controls the aircon
          as well as one near the drivers left knee that monitors the cabin temperature.

          cheers
          leighw
          HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

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          • #6
            I guess I will need to go the dealer then, did not know that it was that complicated! Do all of these sensors really serve a purpose, or is it just to make owners' lives harder and taking more money out of the owners' pockets, frustrating !!!!!

            Appreciate your input, this is THE best forum for the Toyota Prado, period.

            Comment


            • #7
              Did not take it to the dealer yet as I cannot afford it at this time. I believe I may have traced this to a harness that is located under the silver strip in the center dash area, to the left of the AC controls. Given that I finished my Stereo upgrade a month ago, I thought that harness might be loose. Sure enough, I pulled it out and reinstalled it, it worked for a few days, but now its back to showing errors and wrong temperature readings, which is impacting how the AC works.

              Is this harness replaceable? It has a lot of wires coming out of it and is secured by one bolt, which really does not attach very well to where it is supposed to.

              Comment

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