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switch and panel light wiring

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=74122
Printed Date: May 06, 2025 at 10:31 AM


Topic: switch and panel light wiring

Posted By: tzed9
Subject: switch and panel light wiring
Date Posted: March 07, 2006 at 10:28 PM

Hi, new to the forum, looks like lots of very knowledgable peeps here, hope you can help please.

Got a power switch for a sub wired in the car, it controls the relay fine by providing ground for it.  This works no problem.  I bought some little 3v lamps with appropriate resistors.  I want a visual indication that the switch is on.  I can`t get the lamps to light when the switch is activated. 

I realise that:

1. After using the resistor, the voltage is not enough to activate the relay.

2. The resistor and lamp cannot be in series with the grounding for the relay.

3. There probably has to be at least one diode in there somewhere to get this to work.

Can any kind person offer a wiring solution please?

Many thanks



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More blue lights please!



Replies:

Posted By: mad550
Date Posted: March 07, 2006 at 11:43 PM
Use the + positive output from the relay when on and ground the other side of the lamp

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WOW Sight and Sound
Maroochydore
Nothing is impossible!
Do it right the first time or don't do it at all.



Posted By: tzed9
Date Posted: March 08, 2006 at 1:45 AM

Nice, simple solution!

Respect, cheers Mad!



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More blue lights please!


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