remote starts on dodge vehicles

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paul h

Copper - Posts: 109

Joined: December 06, 2006

Location: Texas, United States

Posted: December 29, 2007 at 12:10 PM / IP Logged

OK...got a question for everyone. Installing RS units on newer Dodge vehicles...they have multiple ignition and accessory wires...what is the best way to do these??

Most RS units give you 2 Ign wires and 1 ACC wire....and if there is multiple either/or acc, is the best way to use relays?? If using a relay for the multiple ACC, is it ok to use a diode to prevent feedback to the relay??

Thanks in advance for the info!!

stuntinonabusa

Member - Posts: 44

Joined: November 13, 2006

Location: United States

Posted: December 29, 2007 at 3:38 PM / IP Logged

u8 can use a relay or you can just use a jumper wire from acc1 to acc2. relay would be the proper way to do this though. be careful using a diode as it can heat up and possibly start burning up wires. been out o the game for a few years but i would always just use a jumper wire and never had any issues....

if at first u dont succeed........ lower ur standards

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Twelvoltz

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Joined: March 24, 2005

Location: New Jersey, United States

Posted: December 29, 2007 at 4:28 PM / IP Logged

Never just jumper wires together, ALWAYS isolate the circuits, the vehicle has them isolated for a reason and when installing a remote start the vehicle should behave just like you were turning the key.

Most RS systems offer low current negative outputs that can be used to trigger additional relays if needed. Use these to trigger relays for the required accessories and ignition circuits.

Installer, IT support, and FFL. I need less hobbies.

saskpuller

Copper - Posts: 144

Joined: November 14, 2006

Location: Canada

Posted: December 30, 2007 at 12:14 PM / IP Logged

Most Newer Dodge vehicles don't have multiple ignition and accessory they MULTIPLEX systems. Usually they have igntion and accessory and maybe a starter wire depending on how new. Generally, I use the extra relay on board to drive the park light circuit or to isolate the mux wires. Personally, other than programming the transponders, I like Dodge's (trucks that is) the best.

paul h

Copper - Posts: 109

Joined: December 06, 2006

Location: Texas, United States

Posted: January 07, 2008 at 10:08 PM / IP Logged

Thanks for the replies. I am going to be doing this tomorrow on my truck and yes, I will definitely be using relays!! Jumper wires, I don't play that game at all!! remote starts on dodge vehicles -- posted image. Like said above...they are isolated for a reason and I'll keep em that way!! I'll just use the add'l outputs to drive a relay from the unit...I just didn't know if there were any other secrets to know. Mine is a 05 Ram truck, 3500 diesel with manual tranny. I am installing a RS727. Not really for the remote start portion till I feel like screwing with the clutch pedal....but I will use the "pit-stop" feature and I really want the alarm functions to help cover the truck itself.

But, as said, Thanks for the replies!! I appreciate the info!!

O..and one last question, I'll be using resistors for the door locks...is this the best way ya'll have seen or is there a better way using relays??

Thanks again!!

paul h

Copper - Posts: 109

Joined: December 06, 2006

Location: Texas, United States

Posted: January 07, 2008 at 10:10 PM / IP Logged

ooops.....1 more question!!

I have what looks like 3 acc wires....well, I can use the 1 accessory off the harness...then use the add'l (-) output off the unit to drive another relay...but can I use it ti supply 2 relays or will it be too much??

Thanks

techman93

Silver - Posts: 591

Joined: October 28, 2006

Location: Pennsylvania, United States

Posted: January 08, 2008 at 8:09 PM / IP Logged

the negative trigger you can use to drive 2 relays just fine. Even 3 relays if needed. The power going through is what you will have to fuse properly and use a good source of power. Some newer Chrysler vehicle require resistance through a relay to start and power the accessory circuit. I have diagram for second start interface on Chrysler vehicles if needed, message me for me to email it to you.

The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.

Do it right the first time... or I might have to fix it for ya

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: January 09, 2008 at 10:48 PM / IP Logged

Here's some pointers for you that will save you time:

door locks : use the (-) trigger from the remote starter and you do not need to use resistors if the output of the RS is greater than 300 mA
Use the cam sensor at the front of the truck for your tach signal. Don't even bother going to the PCM cause it will give you a headache and will make you mad cause there's not enough room there to really work.
The clutch bypass for this truck is easy. Simple one wire hook up, but for the life of me I can't remember if it's a (-) or (+) trigger
2nd ACC will need to be powered up if you want the ABS light to turn off when remote started. Otherwise it doesn't harm anything if it's not powered up.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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paul h

Copper - Posts: 109

Joined: December 06, 2006

Location: Texas, United States

Posted: January 09, 2008 at 11:11 PM / IP Logged

Velocity Motors wrote:

Here's some pointers for you that will save you time:

door locks : use the (-) trigger from the remote starter and you do not need to use resistors if the output of the RS is greater than 300 mA
Use the cam sensor at the front of the truck for your tach signal. Don't even bother going to the PCM cause it will give you a headache and will make you mad cause there's not enough room there to really work.
The clutch bypass for this truck is easy. Simple one wire hook up, but for the life of me I can't remember if it's a (-) or (+) trigger
2nd ACC will need to be powered up if you want the ABS light to turn off when remote started. Otherwise it doesn't harm anything if it's not powered up.

Thank you greatly for the information, I really appreciate it. Couple of questions for you if you don't mind....

~On the door locks, everything I read says resistors, resistors, resistors, I don't understand how I would get around this with the single wire system.

~As for the cam sensor for the tach, I was actually going to use the tachless option....safe or OK for the diesels??

~Clutch Bypass: which wire would this hook to on my RS system?? It is going to be a RS727.

~On the 2nd ACC wire...according to the wiring diagrams I have seen...I have 3 ACC wires?? 1st is a Dk. Blue, 2nd is a 16ga. Pink / YELLOW and 3rd is a 14ga. Pink / YELLOW?? Is this what you have or have seen also?? I would like to clear the ABS light and anything else as it would be if the key was on...just seems afer to me overall.

Again, thanks for your time.

Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: January 10, 2008 at 9:08 AM / IP Logged

For the doorlocks, you will need resistors to control the door lock. The only way around this is to buy a doorlock and bypass module. I suggest using the iDatalink module if you do not want to use resistors to control your doorlocks.

I wouldn't use the tachless on a diesel seeing that the voltage drop so much when the truck cranks. YOu can try but chances are it will not work at all when truck is cold.

If the clutch wire is (-) use a 2nd STARTER output wire ( if you have ) otherwise use your ground when running wire. If you have a (+) clutch wire then use the starter wire from the main ignition harness on the remote starter. Wire in the starter disable at the clutch wire, not the starter wire at the ignition switch.

IGNITION Pink/white

IGNITION 2 Pink/green

ACCESSORY Blue (large gauge)

ACCESSORY 2 Pink / YELLOW (16 awg)

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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