2002 Aurora 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=23327
Printed Date: July 24, 2025 at 10:28 PM
Topic: 2002 Aurora Remote Start
Posted By: cica
Subject: 2002 Aurora Remote Start
Date Posted: December 25, 2003 at 12:43 PM
Hi I'm trying to install a bypass unit on a 2002 Oldsmobile Aurora. Has anyone managed this one before? I think they sent the key cylinder down the assembly line and built the car around it. Does anyone know how to access the pass-key III module wiring on this unit? Any help would be appreciated. Thanks, -Tom
Replies:
Posted By: serialthrlla
Date Posted: December 25, 2003 at 12:47 PM
what bypass are you using, and why do you need to get to the module, we don't carry the 555g at our shop but we use the DEI 555u on PK3 cars, they lose a key but you just put a ring around the key cylinder
Posted By: serialthrlla
Date Posted: December 25, 2003 at 12:49 PM
NM, I read you question better, on some of those Oldsmobile, you can take the underdash off the d side. you can cut some platic out to get to the ignition harness
Posted By: cica
Date Posted: December 25, 2003 at 1:40 PM
Hi Again I was able to take enough of the dash off to finally get a look at the Passkey 3 module and wiring harness. All the app notes and wiring diagrams I've seen indicate I should be looking at a 5-wire harness: Violet - N/C Black - Ground Orange - Battery Violet - Data Line Pink or White - Ignition Instead, to my surprise, I'm staring at a 3-wire harness with 3 wires: black, white and yellow. The part I'm trying to interface is a PKG4. It's supposed to be able to learn the resistance and mimic the PK3. Can anyone tell me what I'm looking at? Thanks -Tom
Posted By: JWorm
Date Posted: December 25, 2003 at 2:06 PM
Sounds like Passlock II. Does your key say "PK3" on the metal shaft?
Posted By: cica
Date Posted: December 25, 2003 at 2:22 PM
JWorm] wrote:
ounds like Passlock II. Does your key say "PK3" on the metal shaft?
Yes, the key does say "PK3". And, if I follow the 3 wires down, they go into the wiring harness. I am totally baffled as to why there are only 3 wires and what these colors represent.
Posted By: csorb
Date Posted: December 25, 2003 at 2:50 PM
Yes there are those colors also but those are not the wires you are looking for. If you can't find the pk3 wires easily, try taking out the radio and looking from that side. I remember doing this car and it definitely was a passlock 3, but I can't remember the exact location. The key sense wire will probably be in a different place though
Posted By: cica
Date Posted: December 25, 2003 at 2:54 PM
csorb] wrote:
es there are those colors also but those are not the wires you are looking for. If you can't find the pk3 wires easily, try taking out the radio and looking from that side. I remember doing this car and it definitely was a passlock 3, but I can't remember the exact location. The key sense wire will probably be in a different place though
Thanks for your reply. Am I definitely looking for a 5-wire harness with violet, black, orange, violet and pink or white? I thought I got a pretty good look at the key cylinder. There are some other wires coming out of the cylinder, but I haven't seen a 5-wire harness with those colors. -Tom
Posted By: cica
Date Posted: December 25, 2003 at 2:56 PM
Also, if I pull the radio, is the theftlock is going to activate?
Posted By: csorb
Date Posted: December 25, 2003 at 4:34 PM
Not if you don't unplug it. I'm not sure which radio that one has but if it is the "Din and a half" version, you should be able to disable the unlock feature by holding down the "1" and the "4" and then pressing the hour button to get"---". Then when you turn off the car the red light won't blink and you can pull the radio.
The other GM radios will not lock unless they are put into another car.
The wires on that car are all small guage wires. I would not necessarily be looking for a seperate harness as they might be found mixed with the other wires coming down from the main harness. Also. Make sure to power up the white ignition wire which controls the trans, otherwise you might find yourself carrying it off to a deaer ON A FLAT-BED.
Gotta do. Good luck!
Posted By: cica
Date Posted: December 27, 2003 at 8:20 AM
Hi Everyone Thanks for all your help in my previous 2 posts. I have the RS functioning, but am questioning one quirk. When I start the car remotely, put the key in the ignition and turn it to run, the onboard diagnostic displays "Theft System Fault Detected." If you hit the reset button, the message goes away. Is this normal? It isn't interfering with the functionality of the RS, I just didn't expect the diagnostics to pickup the bypass. Thanks again. -Tom
Posted By: serialthrlla
Date Posted: December 27, 2003 at 10:07 AM
it probably won't interfere with the remote start, if you already have it starting. but to keep the light from coming on there might be another ign. wire that needs powered.
Posted By: Teken
Date Posted: December 27, 2003 at 12:06 PM
Ignition 1: is PINK and, ignition 2: is WHITE in color, just so you are clear.
Regards
EVIL Teken . . .
Posted By: cica
Date Posted: December 27, 2003 at 12:23 PM
Teken] wrote:
gnition 1: is PINK and, ignition 2: is WHITE in color, just so you are clear.
Thanks for the replies. I wired Ignition1 to PINK and Ignition2 to WHITE. I think the CIC display is smart enough to know that the passkey3 is being bypassed. It must be that one second where you put in the key and turn the ignition to ON. Maybe, in that one second, it sees both keys?
Posted By: HamiltonAudio
Date Posted: January 01, 2004 at 9:04 PM
can you not get a good look at the housing that goes around the key cylinder? the PK3 wires will be coming off of it, and you might be able to see where the harness goes. b
Posted By: ils2003
Date Posted: January 09, 2004 at 1:34 PM
The 3 black-white-yellow wires go from Theft deterrent control module to Theft deterrent exciter module. They are sensor low reference, sensor supply voltage and sensor signal. Pin | Wire Color | Circuit No. | Function |
|---|
A | WHT | 1459 | Security System Sensor Supply Voltage | B | YEL | 1836 | Security System Sensor Signal | C | BLK | 1835 | Security System Sensor Low Reference |
This is what you want Pin | Wire Color | Circuit No. | Function |
|---|
A | ORN | 240 | Battery Positive Voltage | B | YEL | 1836 | Security System Sensor Signal | C | WHT | 1459 | Security System Sensor Supply Voltage | D | PPL | 1807 | Class 2 Serial Data-Primary | E | PPL | 1807 | Class 2 Serial Data-Primary | F | WHT | 1390 | Off/Run/Crank Voltage | G | -- | -- | Not Used | H | BLK/WHT | 451 | Ground | J | BLK | 1835 | Security System Sensor Low Reference | K | -- | -- | Not Used |
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