2002 Impala keyless/remote start
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=63469
Printed Date: April 29, 2024 at 6:14 PM
Topic: 2002 Impala keyless/remote start
Posted By: duley3
Subject: 2002 Impala keyless/remote start
Date Posted: September 29, 2005 at 6:53 AM
I have a neg. one wire set up on this 2002 impala. I'm using the DEI 451M module for the hook up. I know where the other wires go from reading around on this site. But the Bue and Green are messing me up. Do I hook both wires to the lock and unlock wire on the car ????.
Replies:
Posted By: cntrylvr79
Date Posted: September 29, 2005 at 8:12 AM
If I'm understanding what you're asking, the blue, and green ( with the 470 ohm resistor inline ) wires from the 451 both go to ORANGE / black wire at the bcm.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: duley3
Date Posted: September 29, 2005 at 1:30 PM
Thats what I wanted to know. That orange and black wire has a gray plug and is located above the brake padel right? Thanks
Posted By: cntrylvr79
Date Posted: September 29, 2005 at 2:03 PM
yup that would be the one. When you're tesing it it will read full 12volts negative on unlock and less than 12 volts negative on lock.
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Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: duley3
Date Posted: September 29, 2005 at 2:57 PM
Thanks for the info... 
Posted By: duley3
Date Posted: October 04, 2005 at 7:10 AM
Okay I know I have asked for help many times from all of you. But, Here's the thing I thought I know where all the wires went for hooking up the 451m module to my valet remote starter. I know where the plug goes. What I don't know is listed below. could someone please help me out again.. Thanks There are 4 other wires and I'm not sure where they go. I'm hooking this up to a 2002 Impala with a (-) switch door locks. I'm pretty sure that it is a (-) switch one wire set up. I think the wire I'm looking for is a ORANGE / Black wire with a gray plug above the brack padle. Please correcrt me if I'm wrong. The PURPLE / Black is the only one I know where it goes ( 12v constant ) The Blue/Black , GREEN/ Black, BROWN / Black and WHITE/ Black wires I have know idea where they go or how to hook them up. After finding where they go I will need to know if I need to cut the wire that I'm hooking them to. Also this came with a little pack of resistors Do I need to use them. If so which ones and where. Please help me with this. I don't want to pay someone else to do it. Most places want $50 - $70 dallor to start. That just seems like alot of money to hook up 4 wires. Thanks again
Posted By: dare_ds69
Date Posted: October 04, 2005 at 7:33 AM
| Power Lock | ORANGE / black | - | gray 24-pin plug @ BCM | Notes: Lock and unlock use the same wire. Lock requires a negative trigger with a 470 ohm resistor in-line. Unlock is negative trigger. Must use relays.
The BCM is located above the brake pedal. It is a plastic box with three plugs that face the firewall. | | Power Unlock | same wire as power lock |
if you see behind the 451m you will see 87 open wich is the PURPLE / black that goes to ground. blue/black is unlock that one goes to the ORANGE / black at the car. GREEN/ black is lock which need 470 ohms resistence and it goes to the ORANGE / black too.  ------------- how own your mind, control your life.
MECP certified. always use a DMM
Posted By: duley3
Date Posted: October 04, 2005 at 8:28 AM
PURPLE / Black is a ground? This has a fuse on it. What about the WHITE/ Black and the BROWN / Black wires? Are they not used? Do I need to cut the orange and black wire and hook either the Blue/Black wire to one end and the GREEN/ black wire to the other? Or do I just strip part of the wire and hook them both to the stripped part? One more question, Do I just wire the resistor in line with the GREEN/ black lock wire? Or do I need to change it inside the unit? Thanks for all of your help
Posted By: duley3
Date Posted: October 04, 2005 at 5:37 PM
Thanks for al the help everyone.... I got it hook up just fine and it works great....
Posted By: blazeronspokes
Date Posted: October 05, 2005 at 10:49 AM
it would have been easier just to put a resistor in line with the lock/unlock wire. the 451m is not needed in these cars. i've done dozens of them without the 451m.
Posted By: duley3
Date Posted: October 05, 2005 at 11:57 AM
Little late now. It's done..But thanks anyway
Posted By: duley3
Date Posted: October 06, 2005 at 7:23 AM
Okay well you people have helped me out alot with this. Now I have a new problem.. Everything works fine with the unit. But if I lock the door with the remote and wait a while (over night) the doors will not unlock with the remote. But, If I use the keys to unlock the doors then open and close them the remote will then lock and unlock the doors just fine. Why would this happen? I first thought it would be a connection some where that was not made good. I have ccheck everything as far as connections and being wired right. Could it be something with the factory alarm on it? If so how can I fix the problem? thanks Dave BTW This is on a 2002 Impala
Posted By: Evolution-UK
Date Posted: October 06, 2005 at 9:03 AM
CHEVROLET, IMPALA, 2002, Power Lock
Lock and unlock use the same wire. Lock requires a negative trigger with a 470 ohm resistor in-line. Unlock is negative trigger. Must use relays.
The BCM is located above the brake pedal. It is a plastic box with three plugs that face the firewall.
ORANGE / black wire in gray 24-pin plug @ BCM
not sure if this is any help.
Posted By: duley3
Date Posted: October 06, 2005 at 9:14 AM
I know all that.. I have it hooked up the right way. Just some times after locking the doors the unlock does not work with the remote. Only if I wait awhile (over night or something) it won't work.
Posted By: kgerry
Date Posted: October 06, 2005 at 10:00 AM
i've run into a few "sleepers" like that on GM vehicles.... it's almost as if a circuit goes to sleep... if you press lock then unlock in the morning it works fine, but if unlock only then it wont unlock....
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: Evolution-UK
Date Posted: October 06, 2005 at 3:26 PM
If all else fails......
fit a door motor.
Posted By: duley3
Date Posted: October 07, 2005 at 7:37 AM
Okay here we go again. I have an 2002 Impala with the 562T remote start. 4 button remote. Lock, unlock, start, and AUX. I want the AUX button to open the truck. But I'm not understanding what wire(s) I need to work with on the unit. I know where the wires are on the car. Has anyone here hooked it up before? If so how would I go about it?
Posted By: kgerry
Date Posted: October 07, 2005 at 1:32 PM
LT.BLUE is the ( - ) trunk release relay input and is found at pin-A2 on the gray 24-pin C2 connector...hook this up to the RED / white aux wire and off you go....
-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: duley3
Date Posted: October 07, 2005 at 1:45 PM
I don't need to use any relays or anything? That sound easy enough... Thanks Dave
Posted By: duley3
Date Posted: October 18, 2005 at 7:24 AM
kgerry wrote:
LT.BLUE is the ( - ) trunk release relay input and is found at pin-A2 on the gray 24-pin C2 connector...hook this up to the RED / white aux wire and off you go....
Well I done just like you said.. LT blue to the RED / white wire and nothing happen. I even tried the RED / white wire to the wires at the switch (Black, BLACK/ White) So what now? Do I need a relay or something? Please help this is the last thing I need to hook up. I have the door locks working, Horn working with it, remote start works fine. I just need the truck to release now.
Posted By: mo12v
Date Posted: October 18, 2005 at 7:55 AM
Have you tried HOLDING down on the Remote Button for apprx 3 - 5 seconds??
A lo of Trunk Release Buttons are NOT Instant
If so....Meter both wires to confirm Pulse & Correct Trunk wire
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: duley3
Date Posted: October 18, 2005 at 11:34 AM
No I didn't hold it down. I didn't know that some were not instant releases. I will hook the wire back up and try again later. Thanks for the info.
Posted By: kgerry
Date Posted: October 18, 2005 at 1:53 PM
the Aux RED / white on all DEI units is defaulted to DELAYED validity... this prevents you from accidently popping the trunk when you put your keys in your pocket or purse.... you need to hold it down for about 4 seconds..... ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: duley3
Date Posted: October 19, 2005 at 12:01 PM
kgerry wrote:
the Aux RED / white on all DEI units is defaulted to DELAYED validity... this prevents you from accidently popping the trunk when you put your keys in your pocket or purse.... you need to hold it down for about 4 seconds.....
Cool Thanks, I'll hook the wires back up tonight and see what happens. One more question. You said to use the LT blue wire at the BCM. Can I use one of the wires at the switch insted? These are must easier to get to. Please let me know. Thanks again EVERYONE I wish I could do something for you all. You have saved me alot of money...
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