4th Gen Ram Tech 2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Alarm Install Help

Old Jul 8, 2010 | 01:52 PM
  #1  
johndoby's Avatar
johndoby
Thread Starter
|
Rookie
Joined: May 2010
Posts: 74
Likes: 0
Default Alarm Install Help

So I've been trying to install a Python alarm system on my 2010 ST, and have pretty much everything figured out but the door locks.

This is what I know...the door locks are a negative trigger, and the wire for the locks is supposed to be the Violet/Green wire in the passenger door. A 330 ohm resistor is supposed to be used in line with the "LOCK" wire from the alarm and a 100 ohm resistor should be inline with the "UNLOCK" wire from the alarm.

The signal output from my alarm to the lock/unlock wires is as following:

GREEN: (-)LOCK (+)UNLOCK
BLUE: (-)UNLOCK (+)LOCK

To cancel out the (+) signal from each wire during the button press, I installed diodes inline between the resistors and the alarm, with the band facing the alarm.

This configuration should work in theory, but does nothing on button press, and also causes the lock switch on the passenger door to cease functioning.

Any ideas? This is stumping the hell out of me. I've tried it with and without the diodes. Everything is disconnected now and the factory door switches are functioning once again.
 
Reply
Old Jul 9, 2010 | 08:14 AM
  #2  
bonza's Avatar
bonza
Registered User
Joined: Feb 2009
Posts: 19
Likes: 0
From: Netherlands
Default

Sound like the wrong way of installing or you bought the wrong alarm, your locks are controlled with CANBUS command's. Each electric lock has a separated connection to the PCM module. The lock/unlock buttons in the door only send command's to the CANBUS.

You need to use a CANBUS adapter for your Python alarm so it controls the unlock/lock of the doors with CANBUS command's. This way the ECU of the car also knows the current door state, and you don't have any change of CANBUS problems blocking communication or draining of you car Battery.
 
Reply
Old Jul 9, 2010 | 09:34 AM
  #3  
johndoby's Avatar
johndoby
Thread Starter
|
Rookie
Joined: May 2010
Posts: 74
Likes: 0
Default

Thank you for replying, but your post doesn't make any sense. It wouldn't matter if NASA controlled the door locks...if you have a factory switch that unlocks and locks your doors...the signal that the switch sends CAN be emulated. Have you installed a car alarm or keyless entry in a 09-10 Dodge Ram?

Originally Posted by bonza
Sound like the wrong way of installing or you bought the wrong alarm, your locks are controlled with CANBUS command's. Each electric lock has a separated connection to the PCM module. The lock/unlock buttons in the door only send command's to the CANBUS.

You need to use a CANBUS adapter for your Python alarm so it controls the unlock/lock of the doors with CANBUS command's. This way the ECU of the car also knows the current door state, and you don't have any change of CANBUS problems blocking communication or draining of you car Battery.
 
Reply
Old Jul 9, 2010 | 09:38 AM
  #4  
johndoby's Avatar
johndoby
Thread Starter
|
Rookie
Joined: May 2010
Posts: 74
Likes: 0
Default

Just spoke with an installer who verified that I have it wired correctly. Also, he said it will work with diodes, but doesn't require them. He said that I may have a problem with my alarm control unit. He gave me a couple of tips to help me narrow down the problem.
 
Reply


Thread Tools
Search this Thread

All times are GMT -4. The time now is 04:51 PM.