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2002 Ram Keyless entry Remote Start


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wvumounty 
Member - Posts: 11
Member spacespace
Joined: November 16, 2002
Location: United States
Posted: November 18, 2002 at 8:09 AM / IP Logged  

I have a couple of questions

1.  Has anyone figured out the correct relay configuration for the relay for the door locks?

2.  Having trouble with getting the parking lights to flash, currently only the dash flashes when doors unlocked.  If I leave the key turned to the on position, I get the dash and headlights to flash.

3.  Remote start not functioning I got it to crank a few times, wouldn't start so I hooked the tach to the spark plug wire, still wouldnt start but cranked.  Moved the tach wire to original location, now wont crank and lights wont flash nothing.

Any help is greatly appreciated.

-Jeff

Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: November 18, 2002 at 8:44 AM / IP Logged  
  • 1. Use WHITE/ GREEN through a 830 ohm resistor and a (-) pulse ( OR if this is not working use 560 ohms ) for lock
  • Use the same wire for UNLOCK but use either 320 ohm resistor or (2) 249 ohm resistors wired in parallel. No need for relays , but if ground signal is not strong enough from the RS unit you will require to use 2 relays to boost signal.
  • 2. Use the (-) trigger light flash wire VIOLET / YELLOW at the light switch with a 500 - 1000 ohm resistor. Relay required to reverse the polarity and this wire turns on the parking and headlights.
  • 3. There are 2 ignition wires as well as 2 accessory wires that all need to be hooked up in order for the 2002 Ram truck to start and have the heater/AC work as well. Relays required for the 2 secondary wires.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
securinu 
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Joined: September 15, 2002
Location: United States
Posted: November 18, 2002 at 4:07 PM / IP Logged  
as far as the tach goto any odd color at any injector and tap . also you will need to reprogram if you move the connection .
Chris Luongo 
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Platinum spaceThis member consistently provides reliable informationspace
Joined: May 21, 2002
Location: Massachusetts, United States
Posted: November 19, 2002 at 5:45 PM / IP Logged  

I just did one of these again today, and I finally wrote a few things down.

There's a boatlaod of ignition wires.  You have to power up more than usual, but not ALL of them.

Pink/black and RED / white are constant power.  And so is BLACK/ orange, although since it's a small-gauge wire, I wouldn't tap into it.

A smaller blue wire is the main ignition--you need to activate this to remote start the truck at all.  Second ignition is red, the same size as the blue wire.

The large green accessory wire powers the fan.  The small orange wire allows the ABS and airbag lights to turn off---it tests as an accessory wire, but you can also power it as an ignition if you need to for whatever reason.

The BLACK/ white powers the radio; I didn't need it for remote start.

Parking lights:  I could never find a resistor value that would reliably do parking lights only---the headlights would often come on too.  DEI's Techsoft says you need to use an outboard relay to interrupt the factory parking light wire, and THEN trigger it with the resistor.  I think it's far simpler just to run a positive wire under the hood, and catch the standard BLACK / YELLOW parking lights wire coming out of the underhood fuse box.

I used the GREEN/ orange factory arm/disarm wire for the locks---it's the wire that tests by turning the key in the door.  It worked great, and turned on the factory domelight supervision too.  You do need a unit that will put out a double pulse, though.  And I usually don't need to use relays.  Attach a slightly-smaller-than-called-for resistor to your unit's lock and unlock outputs.  Put a diode after each resistor.  Attach the other ends of the diodes to the car.

securinu 
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Posted: November 19, 2002 at 5:59 PM / IP Logged  
parklights are 315 ohm and can be gotten behind the dash coming from light switch it is a purple / YELLOW, you can also get the BLACK / YELLOW wire + park lights wire inside on the big harness left of the brake /clutch it is buried though.i always use relays for the locks i have had 2 many come back for intermittent lock probs. and as everyone knows comebacks cost money. as for the door trigger you can get one wire to catch all the doors it is brown  - and is in the driver a pillar or from underneath way up high in a fabric loom just use a small light to confirm before you tap and of course test as well but this gets all 4 or 2 doors .i do tons of these if anyone needs help on these just let me know . i do probably 10 a week so unfortunately i can do these in my sleep.one good thing i can do a full alarm and remote start in one in 40 mins. so i guess it has paid off doing so many.
Chris Luongo 
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Posted: November 21, 2002 at 5:36 PM / IP Logged  

securinu--- you're right about using the relays on the doorlocks---we've had some comebacks too; particularly the unlock wire on Rams.  It seems to me that if it calls for a high resistance, like say, 800 or 1500 ohms, you can get away with it...... but if it wants 200 ohms or so, it's going to come back.  I talked to our other guy at work who does Chryslers all day, and he says he's now using relays for both lock and unlock on the Ram.

Another update, as I worked on another Ram yesterday.  If it doesn't have a factory alarm, you're not going to be able to use that arm/disarm wire, even if you can find it, for just doing the locks.  You can easily test for this....... if the doors lock and unlock when you twist the key in the door, then this will work for you...... if not, use the standard WHITE/ green wire that tests off the switch.

securinu 
Silver - Posts: 772
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Joined: September 15, 2002
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Posted: November 21, 2002 at 7:34 PM / IP Logged  

another way to tell if it has an alarm is

1) it has to have a grey sentry key

2)in the guage cluster @ bottom right there is a led that will flash when doors are locked and closed

wvumounty 
Member - Posts: 11
Member spacespace
Joined: November 16, 2002
Location: United States
Posted: December 10, 2002 at 11:20 AM / IP Logged  
Ok thanks everyone for all your help.  The remote start and keyless entry are all working except for one small thing.  When I unlock the door the parking lights dont flash.  When the truck starts the lights come on and when I lock the doors the dash blinks so I know I have the right wire.   Does anyone know the correct resister/relay combination needed.  Thanks for the help.
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: December 10, 2002 at 11:33 AM / IP Logged  
There might be something wrong with the unit if it doesn't flash when unlocked but works normally otherwise with all other functions.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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