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ECC problems? V70-XC70 1999

posted by  67122 on  Fri Feb 13 10:27 CST 2009
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last visit: Mon Aug 25 06:05 CST 2014
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My recirculation and a/c on lights blinked. I looked in the manual and it says it's an ECC problem. My heat works fine. What do you think is wrong? I don't see anything strange. I restarted the car & they didn't come on again.
--
Jake








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    ECC problems? V70-XC70 1999

    posted by  KlausC on  Fri Feb 13 10:31 CST 2009
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    last visit: Fri Oct 24 10:15 CST 2014
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    It is an ECC problem, but going to the dealer is quite expensive to get the code. When the lights blink, the automatic function turns off, the fan is put on low speed, and the vents remain in the position they were in.

    Most cases, the problem is a clogged/dirty cabin temp sensor. Clean it and the error will go away.
    --
    My name is Klaus and I am a Volvoholic.








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      ECC problems? V70-XC70 1999

      posted by  67122 on  Fri Feb 13 11:11 CST 2009
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      Thanks!
      Where is cabin temp sensor located?.
      --
      Jake








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        ECC problems? V70-XC70 1999

        posted by  KlausC on  Fri Feb 13 13:29 CST 2009
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        last visit: Fri Oct 24 10:15 CST 2014
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        Why did I know you were going to ask me that?
        The blank switch plate next to the ECC unit has a grill in it. The temp sensor is behind that. BUT, it doesn't pop out. Pull out the radio and balance it on the shift knob, then grab the ECC unit from underneath and behind and pull it out - that usually takes a little force the first time. Unplug the ECC unit and put it on the floor, then push the radio back in.
        Now you can reach behind the temp sensor. There are 2 small plastic tabs in the top and bottom of the round cylinder next to the grill. Push them in and pull towards the front of the car. Be very careful, the small copper sensor is very fragile and cannot be bent, and it sticks out of the plastic.
        Clean the small fan blades, I used a round toothpick and q-tip, getting all of the dust bunnies out and the blades turning freely.
        Putting the sensor back is a challange, there is very little room to work with. Once it is plugged back in, shove the ECC back in and start the car.
        --
        My name is Klaus and I am a Volvoholic.








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          Now check engine light, connected? V70-XC70 1999

          posted by  67122 on  Wed Feb 18 10:07 CST 2009
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          last visit: Mon Aug 25 06:05 CST 2014
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          I haven't gotten around to cleaning the sensor.
          But today my check engine light came on. Is it related? The book says the light is related to a fault in the emission system. Volvo wants $91 to look and I think I'm gonna just take it to autozone to get codes.
          --
          Jake








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            Now check engine light, connected? V70-XC70 1999

            posted by  KlausC on  Wed Feb 18 10:22 CST 2009
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            last visit: Fri Oct 24 10:15 CST 2014
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            The ECC will NEVER turn on a CEL. They are not related.

            Most autoparts stores will let you use a scanner for free. Autozone will not necessarily clear the code. But write down the Pnnnn number so you can look it up:

            http://www.actron.com/code_lookup.php

            --
            My name is Klaus and I am a Volvoholic.








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              Now check engine light, connected? V70-XC70 1999

              posted by  67122 on  Wed Feb 18 23:48 CST 2009
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              last visit: Mon Aug 25 06:05 CST 2014
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              Thanks,
              I'm gonna go this morning to have it checked out, but strange thing is, the light went away. Will it still carry a code?
              --
              Jake








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                Now check engine light, connected? V70-XC70 1999

                posted by  KlausC on  Thu Feb 19 04:49 CST 2009
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                last visit: Fri Oct 24 10:15 CST 2014
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                It might have a "pending" code, but you might be out of luck and have to wait until the CEL comes back on.
                --
                My name is Klaus and I am a Volvoholic.







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