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Global Mod,
Mod | | | Forums66 Topics128,020 Posts1,055,345 Members48,420 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#87001 03/06/2005 9:38 PM | Joined: Jul 2004 Posts: 39 Junior Member | | Junior Member Joined: Jul 2004 Posts: 39 | I have a question about the warning light system on a vehicle.
I have ask several people about this and still have no answer. I hope someone here can set us straight.
One of the first rules of electricity is (it follows the path of least resistance)
If this rule is right why does electricity run through the 15 OHM resistor when you have a charging system working properly but when voltage drops it travels through the light. Seems it should travel the same path both times.
Hope I am not being too ignorant.
Thanks
Paul
Paul
When you do a good deed, get a receipt just incase HEAVEN is
like....the IRS
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#87002 03/06/2005 11:23 PM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | When the system is not charging there is 12V from the ignition to the light and it grounds on the other end, lighting the bulb. When the alternator is charging there is 12V coming from that direction also. With 12V on both sides and no ground the bulb can't light. | | |
#87003 03/08/2005 7:16 PM | Joined: Jul 2004 Posts: 39 Junior Member | | Junior Member Joined: Jul 2004 Posts: 39 | Thank You. Seems simple now.
Paul
When you do a good deed, get a receipt just incase HEAVEN is
like....the IRS
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