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Help! Ignition wire slow to discharge

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  • Help! Ignition wire slow to discharge

    hi I have a carnetix p1900 and have the yellow ign wire tied to the ignition (0V when off, 12V when on) in my 2005 honda accord. However, sometimes the ignition voltage seems to take long to discharge. It would have a constant 12V for minutes (as long as 5 to 15 minutes) after the car has been turned off and the key removed. Does anyone else experience this? How can I resolve this? Thanks!

  • #2
    Use a different source for your switched +12v?

    Just use a volt meter and find one that always turns off with the key


    • #3
      It sounds like you have the +12VDC source that stays hot after the key is turned off that allows you to roll the windows up and down until you open the door, or it times out. I know that I've sat in the car after turning the key off and after 5 to 10 minutes I hear a relay click. It sounds like you need to find another source.

      Also, just to be technical, when I read "discharging" I though the voltage was decaying, not just switching off after 5 to 10 minutes.

      I don't have the wiring diagram for a 2005 Accord, but it should not be too hard to find. I like the Haynes Manuals that can be purchased at most auto supply stores. A cheap voltmeter is also a must-have. Good Luck!