2004 bmw lock / unlock wires
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=118841
Printed Date: May 08, 2024 at 9:33 PM
Topic: 2004 bmw lock / unlock wires
Posted By: rksterling
Subject: 2004 bmw lock / unlock wires
Date Posted: December 26, 2009 at 11:25 PM
I am having trouble getting my remote start to lock and unlock the doors. I connected it as per the fortin web site which shows a diagram using relays. The strange thing is that on the lock side of the relay it connects into both the lock and unlock wires of the vehicle. It shows the same thing for the unlock relay, Diodes are used on both lock and unlock legs. Why would it be pulsing both lock and unlock wires at the same time? The following are the wires I used Power Unlock Red (-) MODULE BEHIND GLOVEBOX
PowerLock WHITE/ BLACK (-) MODULE BEHIND GLOVEBOX
Replies:
Posted By: 05gt
Date Posted: December 27, 2009 at 12:25 AM
if this is a 3 series, i have blue/red for lock and WHITE/ black for unlock both are negative trigger and shouldn't require relays these wires are located either behind the glovebox or in drivers kickpanel
Posted By: rksterling
Date Posted: December 27, 2009 at 1:31 AM
Sorry This is a 2004 X3
Posted By: howie ll
Date Posted: December 27, 2009 at 3:52 AM
Same as 3 Series. Look to the wiring loom coming into the vehicle from the driver's door. Fortin and DEI have the wrong info. Its WHITE/ black to lock, extend pulse to close windows/roof, blue/red to unlock. Both low current NEG. Apart from Toyotas, this is one of the easiest cars in the world to do an alarm and R/S
Posted By: rksterling
Date Posted: December 30, 2009 at 10:01 PM
I am not having any luck with these wires.
I am using the Blue/Red for unlock connected behind the glove box (White Module - Pin 22) and WHITE/ Black for Lock (Pin 20).
I am using the P3 connector from AstroStart 5224 as follows;
#1 Brown for Lock (30)
#2 WHITE/ Brown - Not Used (87a)
#3 BROWN / White - Ground (87)
#4 Blue for Unlock (30)
#5 WHITE/ Blue - Not Used (87a)
#6 Blue/White - Ground (87)
Are these wires behind glove box the same wires as one in wiring loom coming into the vehicle from the driver's door? Also what does low current NEG mean?
Posted By: howie ll
Date Posted: December 31, 2009 at 2:24 AM
The BROWN / white should also be grounded. Yes to the driver's door, it's easier to pick up virtually everything there, tach door triggers etc.. Low current simply means that the lock/unlock trigger wires are negative going and require a low current about 140 milliamps to drive them,
Posted By: rksterling
Date Posted: December 31, 2009 at 11:07 PM
I am not sure what you mean by "BROWN / white should also be grounded" I have #3 BROWN / White - Ground (87) - I have connected this to ground as well as #6 Blue/White - Ground (87) Where do I find a horn wire? Thanks!
Posted By: howie ll
Date Posted: January 01, 2010 at 2:02 AM
I'm sorry. I thought you had the BROWN / white unused on your post.
Horn wire is a PURPLE / blue +, either at steering column wiring or a green relay above comfort module.
Are you using a by-pass with a key in it?
And if so is this key a regular key with the remote locking buttons on it?
Now you know why I keep saying "use the grey valet key".
Also it wont lock with the regular key in the ignition. Your open door must be latched" over to test the locks.
Posted By: rksterling
Date Posted: January 02, 2010 at 9:44 PM
I am using a regular key with locking buttons on it, wire wrapped and connected to a relay. The valet key that came with vehicle is not programed for this vehicle, It does not turn locks or ignition and before installing a key bypass, the remote starter would work with a regular key in ignition but it wouldnt work with valet key placed in ignition. I do not have a valet key for this vehicle. Is there a different signal sent from a valet key compared to a main combo key. I have tried locks with doors closed and no key in ignition. Should I move my lock and unlock wires to the same colored wired at ignition harness or is the valet key the answer. Thank you for all the advice!
Posted By: howie ll
Date Posted: January 03, 2010 at 2:15 AM
This is starting to get repetitive so one more time!
Programme the Valet switch and use it!
On E46 type and onwards the key with the buttons is still "talking" (as I once found out even with its battery removed) one of the things it's saying is "the ignition key is still in the ignition, don't lock me!"
Make sure the car's ACC, violet(or purple) is connected to the r/s 2nd ignition output or it still won't start.
Ignore the same coloured wires at the ignition harness, they might have completely different function, = $$$ problems!
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