 how to test a switch |
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| JFG |
 Nov 7 2018, 01:44 PM
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#1
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Senior Member  Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None  |
I have a rear window demist switch that i would like to test but do not know how to. The switch is for sale as is but i'd rather know it works (regardless of price difference) so that i know it will be of use to the buyer and not a lemon punt.
this is the switch with 3 pins, is there a way to test with a multi meter or simple (keep it idiot simple) wiring circuit that i can put together?   |
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| 914Sixer |
Nov 7 2018, 02:22 PM
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#2
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914 Guru Group: Members Posts: 8,863 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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Put one lead on single top and one on the either bottom. IF you do not see short move it to the other spade. When you see short, put switch out and move lead to the other side. You should now see a short there now. You should have short on both bottom spades now. Push switch in and one will go away.
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| JeffBowlsby |
Nov 7 2018, 02:51 PM
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#3
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914 Wiring Harnesses Group: Members Posts: 8,470 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Attached File(s) 
DashSwitches.pdf ( 127.27k )
Number of downloads: 63 |
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| porschetub |
Nov 8 2018, 06:48 PM
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#4
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Advanced Member Group: Members Posts: 4,696 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
expect to have 2 positive leads going to it and one brown earth,the larger of the 2 positive wires will be power feed to switch ,the other will be a smaller to feed the "on light"...what I say and remember can be different things (IMG:style_emoticons/default/av-943.gif)
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