Diode not working

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=81791
Printed Date: May 21, 2024 at 2:40 PM

Topic: Diode not working

Posted By: oakey22
Subject: Diode not working
Date Posted: August 19, 2006 at 12:19 PM

i am trying to make my turn signals flash using diodes, i am wiring them up from anode to Kathode but they just seem to be blowing straight away and letting the current flow both ways. When i use my indicators they all turn on because of this.

i am using this diode.

1N4148

what other diode should i get?

Replies:

Posted By: oakey22
Date Posted: August 19, 2006 at 12:26 PM

i have the matrix rsx3.5 and want to connect my parking lights, but i dont want the parking lights to flash, i want the turn signals. But when i connect them straight up they flash, but when i put my turn indicator on, all the indicators on the car flash.

Posted By: wishboneattack
Date Posted: August 19, 2006 at 12:36 PM

I think you need a diode that can handle a little more amperage then 400mA. Be brave, use transistors.... posted_image

Seriously I don't have any part numbers here or I would give you one that would work.... Hopefully someone else can help out with that... posted_image

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I may be lost but I am making good time.

Posted By: auex
Date Posted: August 19, 2006 at 1:21 PM

First off, you need to use a 6A diode or relays when isolating lights. Second off, wouldn't it be easier just to tag the hazard light switch?

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: KarTuneMan
Date Posted: August 19, 2006 at 1:43 PM

One question.....what kind a car?

Posted By: oakey22
Date Posted: August 19, 2006 at 2:24 PM

its a vauxhall calibra 1997 in the UK. This is from the hazard light switch, it has 2 outputs from it, left and right.

Posted By: oakey22
Date Posted: August 19, 2006 at 2:43 PM

could i use 2 relays like this?

pin 30 - left parking lamp/ or Right parking lamp

pin 85 - Earth (Ground)

pin 86 - output from alarm

87 - 12v fused

Posted By: auex
Date Posted: August 21, 2006 at 5:02 AM

That would work.

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: INSTALLER_MSS
Date Posted: August 23, 2006 at 12:35 AM

use relays to isolate them. i've seen diodes have problems with isolation in certain applications. relays never fail.