Test a rear defroster switch?

Discussion in 'Electrical Systems' started by Jeffsz28, Oct 31, 2017.

  1. Jeffsz28

    Jeffsz28 Member

    Feb 5, 2015
    Cocoa, Florida
    Can anyone tell if it’s possible to test a rear defroster switch that is NOT in the car?
    If it is possible, can you explain it as though it’s being explained to a child? Lol. Seriously. Electrical systems intimidate me and its completely foreign to me.
    Brw, the switch is for/from an 81 Z28.
  2. Ihada70Z28B4

    Ihada70Z28B4 Veteran Member

    Oct 4, 2002
    Just use a multimeter and a wire diagram of that circuit to test for continuity between the correct pins.
  3. Coadster32

    Coadster32 Veteran Member Lifetime Gold Member

    Oct 2, 2013
    If you don't truely understand the above post, I'm sure you have a friend that can check it for you.
  4. Jeffsz28

    Jeffsz28 Member

    Feb 5, 2015
    Cocoa, Florida
    Ok, i have a multimeter and a colored wiring diagram that shows every other switch except the rear defroster. Either that or i’m going blind, which is entirely possible at my age :rolleyes:
    None of my friends are gear heads nor do they know anything about automotive electrical systems, so I’m kinda on my own.

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