? about fuse blowing

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=40161
Printed Date: May 09, 2025 at 1:20 PM

Topic: ? about fuse blowing

Posted By: CarAudioPrez
Subject: ? about fuse blowing
Date Posted: October 02, 2004 at 10:58 AM

I just added 4 autoloc door solenoids to my Clifford MAtrix rs3.5 2way alarm. I used relays like the instructions said for the solenoids and have them all tied in to separate channels since i brought a dei channel expander. Now all of the wires that run to the relay that are 12volt constant are fused with 10amp fuses (what came with the door solenoids). Now the door poppers work fine the first time but then the fuse blows for that particular solenoid. The other doors will work one time as well and then the fuse blows. Does anyone know what may be the problem. Here are some things that I think may be affecting it.

Its all running 12gauge wire.(The door silenoids came with a small 16gauge wire for power but I used 12gauge instead since that is what is coming from the relay). The ground that came with the solenoids is a lot thinner, like 16gauge wire. All of the 12volt constant wires are tied in together (after the fuse holders) so they are all getting power from one main wire that is tied into 12volt constant. Looks a little something like this:

posted_image

If anyone can suggest what may be the problem I would appreciate it. I'm going to try to go up to a bigger fuse but I'm not sure if that will help.

Replies:

Posted By: CarAudioPrez
Date Posted: October 02, 2004 at 11:02 AM

ok lets see if this image works:

[IMG]https://upload.houston-imports.com/uploaded/door solenoid wiring.JPG[/IMG]

Posted By: CarAudioPrez
Date Posted: October 02, 2004 at 11:43 AM

They are 30amp bosch relays. Here is how I wired them (as per autolocs instructions):

https://caraudiogear.net/relay%20wiring.JPG

Posted By: OZzyd
Date Posted: October 02, 2004 at 6:55 PM

CarAudioPrez wrote:

They are 30amp bosch relays. Here is how I wired them (as per autolocs instructions):
https://caraudiogear.net/relay%20wiring.JPG

make sure the door lock output is set to pulse and not to 3.5 seconds

Posted By: CarAudioPrez
Date Posted: October 02, 2004 at 11:31 PM

Yes the channel expander is connected to channel 4 (-200mA). The channel expander puts out the same output on all of the channels that it has.

Posted By: CarAudioPrez
Date Posted: October 05, 2004 at 11:58 AM

would running each one of the 12volt constant wires to its own wire instead of grouping them all together make a difference?