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Prostart CT 5000 Door Lock Trouble

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=46214
Printed Date: October 31, 2024 at 6:10 PM


Topic: Prostart CT 5000 Door Lock Trouble

Posted By: Keith_4.6_
Subject: Prostart CT 5000 Door Lock Trouble
Date Posted: December 28, 2004 at 1:55 PM

I have just installed a 3 in 1 car starter in a 1999 Chrysler Cirrus. This is an alarm, starter, and keyless entry all in one. Everything works but the power door locks dont unlock by remote. I am not sure if you have to program the remote, or i am kinda leaning to polarity problem in the prostart unit. With the schematics i have, it lists the prostart unit as working off of a neg polarity, and the cirrus works off of a positive . This is what i think the problem might be, any ideas would be greatly appriciated. Also i believe to make the keyless work, you only hook up 2 wires.




Replies:

Posted By: gus1
Date Posted: December 28, 2004 at 2:47 PM
You will require 2 relays, as the doorlocks are multiplexed single wire, and the brain will not provide enough of an isolated signal to drive them. There should be a diagram in the Relays section or the Door lock section over to the left in the blue sidebar. 680ohms for lock, 2kish for unlock.

Gus



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Wherever I go, that is where I end up......




Posted By: Keith_4.6_
Date Posted: December 29, 2004 at 3:34 PM
thanx for the quick reply. ok, i think i understand about the relay, but now i am guessing that i am going to need 2 resistors also? This door locks at 620 Ohms pos, and unlocks at 2700 ohms pos, so i am guessing i would have to put those resistors in, or would it works without?




Posted By: hayman
Date Posted: December 29, 2004 at 6:40 PM

If you haven't looked at the DEI wire page have a look.  This link should take you there and then plug in your make of car.  https://www.7thgencivic.com/wiring/index.php?change=1

According to them all you have to do is locate the WHITE/ green trigger wire behind the fuse box.  Which is a positive trigger see note below. Use your digital volt meter to make sure. 

**3 Use positive (+) trigger thru a 620 ohm resistor to lock, and a positive (+) trigger thru a 2.7K ohm resistor to unlock. Must use relays.

So from what I gather you simply  hook up  fused 12volts to the relays.  Then trigger each  relay (lock&unlock)  with the prostarts unlock and lock wires accordingly  which are( -) out put.  So then  your relays are going to  have a (+) output but you  need a 620 ohm resistor inline for  lock  and  a 2.7K ohm resistor inline to unlock which are then hooked  to the  cars  locks trigger wire.

Designtech and bulldog give wire colors and tips two maybe they have more info.   If you need to know what terminals to use on the relay for this procedure post back or click on  door locks or relays on the site here I think they have pictures too.





Posted By: forbidden
Date Posted: December 29, 2004 at 6:49 PM
Take 2 relays and black tape them together side by side. Connect the fused (10amps) +12 volts to pins 86 and 87 on each relay. Connect the prostart lock wire to pin 85 on one relay and connect prostart unlock wire to pin 85 on the other relay. Ground pins 87a on each relay. Pin 30 on relay 1 (lock relay) needs to have a small length of wire on it, then the 620ohm resistor, then another small length of wire. Pin 30 on relay 2 (unlock relay) needs the same thing done only use the 2.7k resistor. Now tie the two lines together and attach to the single lock/unlock wire in the vehicle. This should work for you in this vehicle.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: hayman
Date Posted: December 29, 2004 at 7:47 PM

Rob was just wondering why it needs  87A grounded?  So when the relays are off (at rest)  the terminal 30's  the outputs will  then be connected to  constant  ground.

thanks





Posted By: Keith_4.6_
Date Posted: December 30, 2004 at 12:06 PM

there is also a ALARM, and, DISARM, wires that are neg coming out of the harness of the prostart unit, i would imaging these wires get hooked up to the unlock, lock , on the relay?





Posted By: forbidden
Date Posted: December 30, 2004 at 12:26 PM
If the vehicle has a factory alarm system, the arm and disarm wires control the factory alarm.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: Keith_4.6_
Date Posted: December 30, 2004 at 2:22 PM

well you seem to know these things really well, so i will ask one more question, there is also a wire on the same harness that the instructions say "WHITE (-) GROUND OUT WHEN RUNNING, this is a 500 -mA constant ground output.        ,,, now would this wire get connected to the car's ground (like the battery), or just leave it alone?





Posted By: forbidden
Date Posted: December 30, 2004 at 2:42 PM

Leave it alone, cap off the lead and do not use it.



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Top Secret, I can tell you but then my wife will kill me.




Posted By: Keith_4.6_
Date Posted: December 30, 2004 at 5:59 PM

I have to thank everyone very much for the help on this little project. I have it wired up and all is working great.

THANX ALOT!!!!!






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