2003 dodge ram parking lights

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=121929
Printed Date: July 05, 2025 at 2:07 PM

Topic: 2003 dodge ram parking lights

Posted By: CutDog504
Subject: 2003 dodge ram parking lights
Date Posted: May 20, 2010 at 7:18 PM

I used to do tons of installs years ago, but have been "out of the game" for about 3 years now. But I'm doing a remote start on a 2003 Ram for someone and I can't remember about the parking lights. All the diagrams say to grab them at the switch and use a 330ohm resistor. But if my memory serves me right, I used to grab them under the hood as a positive wire and no relay or resistor was needed. Does anyone know about this? If so, where and what color wire is it?

Replies:

Posted By: sean11901
Date Posted: May 20, 2010 at 7:41 PM

if this is the full sized 2003 dodge ram pickup...

PARKING LIGHTS ( + )

BLACK / YELLOW (+)

@ RELAY UNDER HOOD, at POWER CENTER

Posted By: sean11901
Date Posted: May 20, 2010 at 7:42 PM

PARKING LIGHTS ( - )

PURPLE / YELLOW (-) See NOTE *1

@ BACK of HEADLIGHT SWITCH on Dash

Posted By: sean11901
Date Posted: May 20, 2010 at 7:42 PM

sorry heres the note....

NOTE *1 the (-) Negative PARKING LIGHTS on this vehicle will require a (-)Negative thru a 330 or 1400 Ohm Resistor and an extra Relay part #775, to connect, See DIAGRAM

Posted By: sean11901
Date Posted: May 20, 2010 at 7:47 PM

so you will have to wire a relay like this..

85- (-) output from mod

86- (+) 12v Fused

30- This is going to go to the Parking light (-) wire in the back of the headlight switch with the 330 Ohm resistor

87- (-) Grounded

Posted By: sean11901
Date Posted: May 20, 2010 at 7:50 PM

if the Mod puts out a (+) signal then..

pin 86 will be the output from mod

pin 85 will be grounded along with 87 together

Posted By: blanx218
Date Posted: May 20, 2010 at 8:33 PM

if using the negative parking lights you will actually need to isolate the wire. cut the purple / YELLOW and wire relay as follows

pin 87 connect to ground with your 330 or 1.4k ohm resistor inline

87a switch side of purple / YELLOW

30 car side of pur/yel

85 parking light output from remote start

86 +12V or ground depending what type of output comes from the r/s

Posted By: sean11901
Date Posted: May 20, 2010 at 10:08 PM

blanx218 wrote:

if using the negative parking lights you will actually need to isolate the wire. cut the purple / YELLOW and wire relay as follows
pin 87 connect to ground with your 330 or 1.4k ohm resistor inline
87a switch side of purple / YELLOW
30 car side of pur/yel
85 parking light output from remote start
86 +12V or ground depending what type of output comes from the r/s

thanks for the correction.. :-)

Posted By: CutDog504
Date Posted: May 21, 2010 at 2:28 PM

I know about the resistor and relay method. What I was asking is isn't there a positive wire under the hood where you can tap in and no extra relays or anything is needed?

Posted By: blanx218
Date Posted: May 21, 2010 at 9:23 PM

yes there is. its at the PCM which i think is on the drivers side fender well

Posted By: blanx218
Date Posted: May 21, 2010 at 9:23 PM

sorry. forgot to say its BLACK / YELLOW