• C68 Electronic Climate Control
  • C68 Electronic Climate Control
  • C68 Electronic Climate Control
  • C68 Electronic Climate Control

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  1. #1
    C68 Electronic Climate Control TedC's Avatar
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    Default C68 Electronic Climate Control

    Could someone with the C68 ECC digital option for an earlier C4 (pre 1990) verify if their climate control does the same thing? If I adjust the fan speed in manual mode greater than 01, it resets back to 01 when I turn the ignition off and then back on. Everything else seems to hold to the last used setting (i.e. temp setting, vent control mode). When I first purchased the vette, I thought it maintained the last used fan speed.

  2. #2
    C68 Electronic Climate Control Vettefan87's Avatar
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    I think mine drops down to one or zero, not sure. I wondered about that to, all the temp settings stay the same but the fan speed does not.

  3. #3
    C68 Electronic Climate Control TedC's Avatar
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    vettefan87, Appreciate the feedback. Mine will display 01 most of the time. Once in a while it will display 00. This is odd because the LED light is still on ECON, and I can't drop the fan down to 00 unless I select OFF. I was thinking of pulling the dash unit, clean the contacts, and check the solder joints.

  4. #4
    tonylong
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    Quote Originally Posted by TedC View Post
    vettefan87, Appreciate the feedback. Mine will display 01 most of the time. Once in a while it will display 00. This is odd because the LED light is still on ECON, and I can't drop the fan down to 00 unless I select OFF. I was thinking of pulling the dash unit, clean the contacts, and check the solder joints.
    I replaced my head end unit but managed to break the %^%$$#$% plastic clip that holds the cable to the head unit. Now it sometimes blinks out and/or resets to AC at 75 degrees. Be careful the retainer is not a part I could ever find, if you find one let me know.

    The new head unit works find except for the above.

  5. #5
    C68 Electronic Climate Control Vettefan87's Avatar
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    Yeah I know mine needs cleaning. Half the time the display will not light up and I have to push the buttons several times to get the readout.

  6. #6
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    Most of the time when I start the car, the fan speed will read 00, and it won't let me change the fan speed for a few minutes. And sometimes, when I start it up, I can change the fan speed immediatly.

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