fog lamp, 1 minute relay

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=120323
Printed Date: May 07, 2024 at 6:45 PM

Topic: fog lamp, 1 minute relay

Posted By: luvlexus101
Subject: fog lamp, 1 minute relay
Date Posted: February 23, 2010 at 2:30 AM

I have a 1993 toyota camry and I recently installed aftermarket foglights. It came with its own relay and the installation went smoothly. I want to make it so that after removing the key from the ignition they lights stay on for about a minute. Its a common feature on cars now and I've searched the forum but I can't seem to find a very straightforward reply. I don't want to pay 20 dollars to use a DEI 528t so is there a clear wiring guide using the transistor or other devices to achieve this function? I've seen a few wiring diagrams but none of them seem to be very straight forward.

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G Lock

Replies:

Posted By: oldspark
Date Posted: February 23, 2010 at 6:16 PM

Is using a chip like the 555 acceptable? (Or any other 1 minute timer?)

Posted By: luvlexus101
Date Posted: February 25, 2010 at 8:28 AM

oldspark wrote:

Is using a chip like the 555 acceptable? (Or any other 1 minute timer?)

That would work. I was more thinking something with a cap, resistor and transistor?

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G Lock

Posted By: oldspark
Date Posted: February 25, 2010 at 5:40 PM

Cool. There should be circuits elsewhere....

It'll take me a while to find.... (gotta go!)

Posted By: dualsport
Date Posted: February 26, 2010 at 11:45 AM

You can look into something like this-
https://www.the12volt.com/installbay/forum_posts.asp?tid=90684&PN=1

In that one, it has the extra input from the door switch to turn it off immediately when exiting, if you don't need that just delete D3.
You can change R2 to a direct wire also.
Change the resistor / capacitor values to reduce the delay time.