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GMC4x4Guy

Copper - Posts: 117

Joined: March 28, 2002

Location: Washington, United States

Posted: May 22, 2003 at 2:04 AM / IP Logged

I installed an alarm on a '94 Chev truck a few weeks ago. The owner did some work in the dash and ended up blowing the courtesy fuse. After the fuse blew, every time he armed the alarm it chirped three times indicating a door was left open. Why would the trigger wire for the doors be grounded because the fuse was blown? I was never able to check the wire itself, I just know that the alarm started working properly once the fuse was replaced. Any ideas?

"Drive it like you stole it"

draasch

Gold - Posts: 2,172

Joined: February 07, 2003

Location: Florida, United States

Posted: May 22, 2003 at 6:46 AM / IP Logged

sounds like that there might have been more to it...

but it works now.

Good Luck

David

Ace Security

813-376-9778

Tampa

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stevie od

Member - Posts: 2

Joined: May 20, 2003

Location: Scotland

Posted: May 22, 2003 at 10:53 AM / IP Logged

the reason is there is more circuits on the light fuse

when there is no feed at the fuse the live going to the roof light gets earthed througheverything else connected to the fuse.ie radio or hazzards.

that slight earth then goes through the courtesy light bulb and to your alarm

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Dumb Question

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