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Installed new LF speaker, lost automatic window up/down

Discussion in 'Gen 2 Prius Main Forum' started by egg_salad, May 28, 2018.

  1. egg_salad

    egg_salad Active Member

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    Apologies in advance for my inability to read/comprehend wiring diagrams.

    Installed new speakers today. End result is that the LH door window works fine, except it lacks the auto up/down feature now.

    I was cutting off harness tape to re-route wiring, and I'm fairly certain I must have cut through a wire. Because I'm not even clear on how the auto up/down feature is enabled, I can't tell what color wire I'm looking for that I might have sliced through.

    It's certainly not the end of the world (in fact, sometimes I find that feature more of a hindrance than a help!) but I'm a bit OCD about things working as they should.

    If one of you fine folks could assist, that would be swell.

    Thanks!
     
    #1 egg_salad, May 28, 2018
  2. TMR-JWAP

    TMR-JWAP Senior Member

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    If you turned off 12v power (ie disconnected the battery) the auto fuction is lost. It can be restored by raising the window and then continuing to hold the button in raise position for about 10 seconds more. basically, the car forgot what the window position was and needs to relearn it. Holding the button that long guarantees the window is in the up position, so the car now knows where it is.
     
    #2 TMR-JWAP, May 28, 2018
    Raytheeagle likes this.
  3. egg_salad

    egg_salad Active Member

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    I did not disconnect the battery (it's just speakers, not the radio) but I certainly did disconnect the power window master control. Would that have the same effect?
     
    #3 egg_salad, May 28, 2018
  4. TMR-JWAP

    TMR-JWAP Senior Member

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    I'm not sure, but the reset procedure should still work as long as all the wiring is intact. If you're still able to operate the window manually, most likely it will relearn the position.
     
    #4 TMR-JWAP, May 28, 2018
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  5. egg_salad

    egg_salad Active Member

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    Just back from the garage, and your theory has proven correct. Problem solved without having to re-open the door panel! I thank you greatly!

    So for posterity, if you unplug the master window control on the driver door, you have to manually reset the auto up/down feature by bringing the window up and holding the switch in the "up" position for 10 additional seconds.

    I love Prius Chat!
     
    #5 egg_salad, May 29, 2018
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