using a factory button for light, how?

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=102603
Printed Date: May 05, 2025 at 6:34 PM

Topic: using a factory button for light, how?

Posted By: alscrx
Subject: using a factory button for light, how?
Date Posted: February 27, 2008 at 2:10 PM

Ok so my new climate control has an AC button and since i do not have air conditioning its usless. I wanted to know how i go about using that AC button on the climate control as a regular switch, maybe for lights or something.

How would i wire up a relay for this?

There are 2 wires coming from the harness that are for ac.

Replies:

Posted By: i am an idiot
Date Posted: February 27, 2008 at 8:19 PM

Do you have an Ohm meter?

Posted By: alscrx
Date Posted: March 03, 2008 at 3:08 PM

i do have a voltmeter, Does anyone have a diagram for this type of wiring?

Posted By: i am an idiot
Date Posted: March 03, 2008 at 7:24 PM

With the harness unplugged from the switch, set your meter to the Ohms. If it is not an auto-ranging meter set it to 200 ohms. Connect one lead to one of the wires and the other lead to the other wire. Notice the reading on the meter. Press and release the switch. Notice the reading again. If with the switch in one position the meter reads around or below 1 ohm, and in the other position it has no reading, then yes it will be easy to use this switch for something else. If the reading changes when you press the switch each time and changes back when you release it, then it will be a little more difficult. Let me know what you find out with the meter.

Posted By: alscrx
Date Posted: March 05, 2008 at 1:59 PM

Ok, i will check it out ASAP.