Wiring relay parking lights isolation
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=83406
Printed Date: April 25, 2024 at 7:04 PM
Topic: Wiring relay parking lights isolation
Posted By: Fastlearner
Subject: Wiring relay parking lights isolation
Date Posted: September 27, 2006 at 10:43 AM
Doing a remote start/alarm on a 2003 Dodge Ram Pickup. For the parking lights it states that it is a purple / YELLOW in the headlight switch and is negative trigger. I'm using the directwire sheet. For the notes it states "Parking lights require a negative trigger thru a 330 or 1.4K ohm resistor. There is a rest resistance on the wire, so MUST use a relay to isolate away from the switch". First question is Which resistor should I use the 330ohm or the 1.4k ohm or does it not matter. Second how should I wire up this relay to isolate from the circuit. Thanks.
Replies:
Posted By: swamprat323
Date Posted: September 27, 2006 at 11:01 AM
Posted By: Fastlearner
Date Posted: September 27, 2006 at 11:16 AM
How do i know which resistor to use for this vehicle? What should the voltage be once I test it. Also I thought for isolating the circuit you needed to use 87a on the relay.
Posted By: Fastlearner
Date Posted: September 27, 2006 at 11:20 AM
That however is a very nice diagram. Where did you get that from.
Posted By: xtremej
Date Posted: September 27, 2006 at 11:26 AM
I think I smell bulldogsecurity.com......... -------------
Posted By: swamprat323
Date Posted: September 27, 2006 at 11:34 AM
yea i got that form bulldog, i though DEI had one and i though code did to. when all eles fails i look up bulldog crap, but the diagrams do coem in handy, to lazy write them out :) plus when peole see a dirgram it easier for them.
bulldog wire info
Posted By: Fastlearner
Date Posted: September 27, 2006 at 11:42 AM
It did make it a little easier. The parking lights rests at 4.7v and go to 2.5v when energized. So which resistor should I use.
Posted By: KarTuneMan
Date Posted: September 27, 2006 at 12:15 PM
try 330 ohms. The higher value will trigger the headlights. -------------
Posted By: Fastlearner
Date Posted: September 27, 2006 at 12:28 PM
allright thanks guys for the quick response. Can I get one more member to confirm that the diagram that swamprat supplied is correct. I'm not saying your wrong, i actually really appriciate it just better safe than sorry.
Posted By: xtremej
Date Posted: September 27, 2006 at 5:35 PM
Its correct use the 330 ohm resistor and you'll be stillen'
-------------
Posted By: xtremej
Date Posted: September 27, 2006 at 5:37 PM
Ohh and I have been guilty of looking at them sometimes  . -------------
Posted By: Mike M2
Date Posted: September 27, 2006 at 9:29 PM
I have never isolated lights from the switch on any Chrysler car and have never had an issue. I'm not sure why DEI tells you that, i've done hundreds with no issues other than it being a different value resistor than what they specify.
-------------
Mike M2
Tech Manager
CS Dealer Services
|