horn issue

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bearcub48625

Member - Posts: 2

Joined: February 10, 2009

Location: Michigan, United States

Posted: February 10, 2009 at 1:12 PM / IP Logged

i have a 03 explorer with a code systems ca521 remote start with keyless and it does not have a horn output on the unit, it does have a 300ma ground output that i could use, but the horn is just way to loud when i use that wire. i've been told i can fix this with a resistor, but what kind of resistance value would i need to make it have the volume of lets say a factory keyless chirp?

jeremy

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Big Dog

Gold - Posts: 1,265

This member consistently provides reliable information

Joined: May 02, 2002

Location: Quebec, Canada

Posted: February 10, 2009 at 1:28 PM / IP Logged

Use this to shorten a long pulse: RELAY

Use the first diagram.

Prepare your future. It wasn't the lack of stones that killed the stone age.

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wiringfool

Member - Posts: 20

Joined: October 22, 2006

Location: United States

Posted: February 10, 2009 at 11:14 PM / IP Logged

boy iam sure glad i looked at this issue cause iam gonna use this relay config to lower the entrance alarm at my shop thanks

wiringfool eieioztztzt

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bearcub48625

Member - Posts: 2

Joined: February 10, 2009

Location: Michigan, United States

Posted: February 11, 2009 at 8:04 AM / IP Logged

if i don't have a positive pulse wire, is there another way or should i just reverse the polarity of the pulse with a relay

jeremy

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Big Dog

Gold - Posts: 1,265

Joined: May 02, 2002

Location: Quebec, Canada

Posted: February 11, 2009 at 8:22 AM / IP Logged

In that case do all these steps:

1) Inverse the diode

2) Inverse the cap

3) Change the ground from where the cap and resitor meet and put it to a fused 12V+.

The trigger stays on the same wire but will now work in opposite polarity.

Also, if your horn trigger requires a negative activation then change the polarity of pin 87 to ground.

Prepare your future. It wasn't the lack of stones that killed the stone age.

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horn issue

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