feedback from airbag switches.

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=89759
Printed Date: May 12, 2025 at 12:15 PM

Topic: feedback from airbag switches.

Posted By: otto34
Subject: feedback from airbag switches.
Date Posted: January 29, 2007 at 8:11 PM

I am getting a pop noise everytime I try to air the truck up or down throught the speakers. I unhooked the RCAs to both amps and the noise gos away. If any other info is needed please let me know! Its a 98 GMC Sonoma, thanks in advance for any help!

Replies:

Posted By: i am an idiot
Date Posted: January 29, 2007 at 8:52 PM

You need to put a diode across the coil of your relay or solenoid or both.

Posted By: otto34
Date Posted: January 29, 2007 at 9:36 PM

There are no relays for the switchbox, it just has a + input that distributes out the power to all the switches. The switches then just put + out to the valves that are grounded to themselves.

Posted By: i am an idiot
Date Posted: January 30, 2007 at 7:25 AM

The valves are solenoids. you need to connect a diode to each valve, connect the banded end to the positive wire and ground the other end of the diode. It will be better to mount them as close to the valves as possible.

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