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Jeep Wrangler YJ
YJ General Discussion
What did you do in the garage / driveway today?
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<blockquote data-quote="DOWNS" data-source="post: 439988" data-attributes="member: 21038"><p>Yes, looking at the wiring diagram, this circuit uses a switched ground instead of switched power. Like a horn. So I've verified the following.</p><p></p><p>Bulb-not blown confirmed working by hooking it to a 12v source and it lit up. </p><p></p><p>Switch at the CAD-functional, verified using continuity setting on multimeter. Open circuit when in 2wd, closed/continuity in 4wd. </p><p></p><p>Power at connector at switch-verified with multimeter</p><p></p><p>Good ground though connector-verified with multimeter. </p><p></p><p>Vacuum motor at CAD functional-verified by putting shifter in 4wd with front passenger tire jacked up and not able to rotate after shifting into 4wd. </p><p></p><p>I even tried removing the CAD switch from the equation by jumping the power wire to ground, no luck there either. </p><p></p><p>At this point, I'm leaning towards the printed circuit on the back of the gauge cluster to be the problem but I need to shoot the gauge cluster connector to be sure.</p></blockquote><p></p>
[QUOTE="DOWNS, post: 439988, member: 21038"] Yes, looking at the wiring diagram, this circuit uses a switched ground instead of switched power. Like a horn. So I've verified the following. Bulb-not blown confirmed working by hooking it to a 12v source and it lit up. Switch at the CAD-functional, verified using continuity setting on multimeter. Open circuit when in 2wd, closed/continuity in 4wd. Power at connector at switch-verified with multimeter Good ground though connector-verified with multimeter. Vacuum motor at CAD functional-verified by putting shifter in 4wd with front passenger tire jacked up and not able to rotate after shifting into 4wd. I even tried removing the CAD switch from the equation by jumping the power wire to ground, no luck there either. At this point, I'm leaning towards the printed circuit on the back of the gauge cluster to be the problem but I need to shoot the gauge cluster connector to be sure. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
What did you do in the garage / driveway today?
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