2004 dodge ram pu

Hmm Jeff, it's been a while since I've done one of those with a factory alarm, but I don't remember having to do anything special. Like you said, since you're getting it to arm, you must already have the right wire in the truck. --If you're not using relays, but instead are just using the outputs from the Compustar, you'll want to select a resistor that's a little smaller than the 480 that's listed.......try something in the 300-350 range. --If the Compustar has flip-flop reversing-polarity lock outputs, and you're not using relays, don't forget to use diodes to block out the positive pulses from the Compustar. --Look to see if the truck's domelight comes on when you're trying to unlock. The first pulse not only disarms the alarm, but turns on the domelight. If you get the domelight to come on, the resistor value must be correct.....maybe your unit's double pulse is too fast or too slow. --Can your Compustar be programmed to pulse the ignition wire with unlock? As a last resort, you could do that, and just use the PURPLE / green regular unlock wire. --Using the wrong resistor won't break anything. I would feel free to experiment with other-size resistors and see what you get.

I've done alot of these trucks here too ( I install for the local dealership that's 1 block away ). This truck is different than all the others as far as resistance values and I've heard that Dodge does this once in a while. The UNLOCK resistance on the VIOLET/LIGHT BLUE wire doesn't turn the dome light on meaning that it doesn't disarm the OEM security. While testing the VIOLET/LIGHT BLUE wire I have the resistors attached to the door lock wire and I physically ground it to the side of the parking brake frame cause it's close enough & all I want to do is to see if the resistance to ground is right & nothing I've used has disarmed the OEM alarm. I do not want to use a module to control the door locks & alarm system because I've had several different modules on several different car give me grief with the databus. Learn from your mistakes and don't make the same mistake twice........ ( but in my case I think I did it 4 times As far as the IGNITION pulse, I'm not sure if this will diarm the OEM alarm system, I haven't tried it but I'll ask the customer to do that and see if it does. If it does, then I can set up a relay to do that. Kartuneman, I'll try those values too and see what I get.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

460 OHMS RESISTOR WILL DISARMS THE ALARM AND UNLOCK THE DOORS WITH A DOUBLE PULSE. The resistance is only 20ohms different but its worth a shot. Info is from audiovox.Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

Maybe ...2 wires system disarm?

the 456L  is not a data module, but a resistance learning module... it may be worth a shot... i've had success with them when hunting and pecking for resistor values was eating up too much time....Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

So this is what I ended up doing with this truck. I hooked up the ARM/LOCK with a 820 ohms resistor and the UNLOCK with the 335 ohm resistor but this did not disarm the OEM alarm system. Sooooo, what I did was wire in my OEM alarm disarm wire from the Compustar system and diode isolated this wire and attached it to the bypass module and status output wire. When unlocking the truck the disarm pulse triggers the bypass module and disarms the OEM alarm system while unlocking the doors. What a pain.....Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

Also, pulsing the IGNITION doesn't disarm the OEM alarm system for anyone that wants to know. The Compustar system have this option to pulse the IGN and/or ACC and this did not work.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

So, everyone have to compromise the security of the vehicle to get RS to work?Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

No compromise here. When unlocking the doors the OEM security is disabled through the Sentry key and when remote starting the vehicle I have the system set up to UNLOCK before remote start and LOCK after remote start. So the system is active when remote started because of the LOCKING/ARMING after remote start Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA