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Door Locks Issues

Old 02-07-2015, 11:18 PM
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Door Locks Issues

Hello all, New here not new to Car Audio or Alarms.

Ok so I have a Van that I am working on for my son and I am having an issue that I just don't understand...

First of all I am working on a 1995 Plymouth Grand Voyager. It had installed a Crimestopper RS4-G3. All options was installed besides the door locks. The last owner had some problems so they disconnected the locks so that option they left off. After we got the Van I went in and connected the Door pins, installed all the dome lights and connected all the door lock/window switches. After finding the issue to why they did all the take apart I found the issue was with a blockage in the slider messing up everything. The lights would go on and off while driving and the door locks would lock after. Because of Auto Lock. After fixing that and not having that problem anymore I thought I would connect the power door locks to the RS...

So here is the issue.

For this Rig it should be a

Orange/White for lock +
Pink/Violet for Unlock +

Well here is the issue and I don't understand where I am going wrong. After looking at the BCM and finding the Lock + wire Taping the wire, Tested it for function, I couldn't find the P/V wire. Taking the 2 plugs out of the Bcm is kind of crazy. The doors still unlock but won't lock. With plug c2 out I tested all the wires and found a Blue wire that rested at ground and went to 12V + with the Passenger side switch. So installed a Tap there and with a test wire connected to a fuse I tried to use that wire as my unlock + and only pops the fuse in my test wire.

So strange thing is I am looking at the Door Locks Diagram for the van and it confirms that the Wire to unlock is P/V and is in c2 at pin 23. THis I found after the Rain came and sun went down so I haven't looked yet. The problem is there is no other wire on the C2 that act like the lock side.

Also another thing that is strange and I haven't installed for many many years. Still have the tools from back in my install days. This only mention because I am using a Test light Called the Probe from Snap-On bought back in the mid 90's If not seen one or used one it is computer safe (said to be anyway) and show 12+ and 12V- by the way of a red or Green light. While probing C1 I found a wire *Not sure the color right now) where touching it with the probe would make the door lock.

So here goes the finish, Blue wire in the BCM I am not sure what it is or why, There is no other wires in the C2 of the bcm that shows Rest - to 12V+ with the switch moved to unlock and I also don't have another wire that acts like the lock side while probing. Also C1 Removed the LOCK don't work anymore with C2 out as well lock don't work but unlock still does. I guess next option is to get the Unlock wire in the door at the switch as the next step. However my only issue is that if this Blue wire is the unlock that it most likely will not work at the switch as well. I even thought it could be set up as a Reverse Polarity (strange if it was) but cut the wire and tried to give 12v+ just to blow a fuse in my test wire.... Also the Diagram I have for door locks from Plymouth don't show a Blue wire in the locks at all.......

Anyone have some Insight on this would be helpful.

Thank you in Advance
James

Last edited by TheVanMan; 02-07-2015 at 11:22 PM.
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Old 02-10-2015, 05:25 AM
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Well what a pain..... I am not sure what the issue is or what the Wire problem is. I will say that I took out my Switch in the drivers door and the Wire color was just as it was posted, Pink/Vio and a tap there tested and worked fine. Looking at my BCM C2 23 was the Blue wire (Crazy) tested it again and again popped the fuse in my test wire.....

So I said to heck with it and fished a wire though the Boot to the drivers door and added the wire in the door. The other one is in at the BCM C1....

Also just to stay clear here, The second wire I probed and locked the doors was the wire leading into the BCM or lock. Strange thing is there isn't a wire leading into the BCM for Unlock, Just a wire out.....

A work around not solved....

Attached Thumbnails Door Locks Issues-doorlocks_zps95beb322.png  
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Old 02-10-2015, 02:28 PM
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you can tap right into the relay coil legs at the rear fuse box, and that would be it. Far right side bottom 2 relays. tap into 86 and send a positive pulse
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