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drivers lock whine only when running or c

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=103845
Printed Date: May 15, 2025 at 9:15 PM


Topic: drivers lock whine only when running or c

Posted By: climbmnts
Subject: drivers lock whine only when running or c
Date Posted: April 08, 2008 at 10:51 PM

Hi Everyone, I hope I am posting this in th right place.

I have a strange problem with my 2005 Loaded Silverado LT 4x4. It has a  Matrix 50.5 alarm remote/start .
 
I am getting this strange "whine" or "motor noise" when I use the door locks, only when the truck is running or when the courtesy power is still on. Otherwise no whine.

The whine is a motor noise and is drivers door only. I hit the button and the door lock "click" then there is this short motor whine afterward. Both when locking and ulocking. I cannot figure out what would be causing this. Any ideas?

Thanks in advance for any help!!



Replies:

Posted By: i am an idiot
Date Posted: April 08, 2008 at 11:17 PM
Aftermarket or OEM Radio?



Posted By: climbmnts
Date Posted: April 08, 2008 at 11:32 PM

OEM radio but the sound is not coming out of the speakers. It is toward the rear of the door and definitely a motor or servo of some sort.

Thanks!




Posted By: howie ll
Date Posted: April 28, 2008 at 3:53 PM
Door lock motor bounce, definately if aftermarket.


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