2003 dodge ram parking lights

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CutDog504

Silver - Posts: 637

Joined: May 14, 2002

Location: Louisiana, United States

Posted: May 20, 2010 at 7:18 PM / IP Logged

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?

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 7:41 PM / IP Logged

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

PARKING LIGHTS ( + )

BLACK / YELLOW (+)

@ RELAY UNDER HOOD, at POWER CENTER

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 7:42 PM / IP Logged

PARKING LIGHTS ( - )

PURPLE / YELLOW (-) See NOTE *1

@ BACK of HEADLIGHT SWITCH on Dash

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 7:42 PM / IP Logged

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

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 7:47 PM / IP Logged

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

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 7:50 PM / IP Logged

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

blanx218

Silver - Posts: 654

Joined: September 23, 2008

Location: Pennsylvania, United States

Posted: May 20, 2010 at 8:33 PM / IP Logged

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

sean11901

Copper - Posts: 118

Joined: March 05, 2010

Posted: May 20, 2010 at 10:08 PM / IP Logged

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.. :-)

CutDog504

Silver - Posts: 637

Joined: May 14, 2002

Location: Louisiana, United States

Posted: May 21, 2010 at 2:28 PM / IP Logged

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?

blanx218

Silver - Posts: 654

Joined: September 23, 2008

Location: Pennsylvania, United States

Posted: May 21, 2010 at 9:23 PM / IP Logged

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

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