2004 grand prix alarm
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=93195
Printed Date: May 02, 2024 at 4:52 AM
Topic: 2004 grand prix alarm
Posted By: fosgate2001
Subject: 2004 grand prix alarm
Date Posted: April 21, 2007 at 2:34 PM
i hooked up an alarm remote start on a 2004 grand prix works but 2 small problems 1 problem is the parking light wire from the brain ties into the parking light wire which is brown and at first it worked fine now it just blows the fuse on the alarm brain and parking lights wont flash do i need a relay or something?? and second problem is sometimes it tells u to service the the theft system someone told me to hook the keysense wire off the bypass but what wire does it go to if someone could help me out with theese two small problems i would greatly appericate it thanks
Replies:
Posted By: b2reptile
Date Posted: April 21, 2007 at 2:47 PM
Parking lights- Not sure what is wrong, but why not switch it to negative output and use the cars neg p.light circuit? BROWN / white wire at BCM, 18 pin plug, pin 8. The BCM is just left of the steering column. Most newer GM's can only be interfaced this way (not yours though, but I recommend it)
Posted By: b2reptile
Date Posted: April 21, 2007 at 3:03 PM
Also, what are you using to bypass the passkey system? Key in box, or self-learning?
Posted By: fosgate2001
Date Posted: April 21, 2007 at 3:14 PM
im using the 556u i believe the key in the box and atenna ring around ignition
Posted By: enice
Date Posted: April 21, 2007 at 3:23 PM
When integrating with a GMSL or higher version the theft light stays on. For that their would be instructions in the manual if its a self-learning bypass kit. On Fortin bypasses they only bypass is the PATS-GM and with DEI they have the 556U with key in a box. You have to check your wiring with a multimeter for the lights. And also see what kind of polarity the parking light is giving using the multi meter. Let us know exactly what kit your using to figure this out for you.
Posted By: enice
Date Posted: April 21, 2007 at 3:26 PM
If that happens it may be that the bypass(ring around key cylinder) may not be getting a strong signal. It happened to me with a 03 jetta. The light went on but car still turned on. Make sure your ring is secure around the key cylinder.
Posted By: Chris Luongo
Date Posted: April 22, 2007 at 8:35 AM
The security warning message is a known issue on the 2004-up Grand Prix.
The message will come up whenever the car sees 2 keys at the same time...........that is, when the remote start is running (with they key in the 556U), and you insert another key in the ignition with your hand.
Connect the 556U's negative keysense input, to the car's light green keysense wire (found at either the keyswitch or the BCM).
After you do that, the message will disappear after you cycle the keyswitch from Run to Off, 7 times.
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As far at the parking lights, are you sure you're connect to a true parking light wire, and not the dashboard dimmer-switch wire?
Like the other guy here said, I've always used negative lights on these cars.
Posted By: fosgate2001
Date Posted: April 22, 2007 at 8:25 PM
im gonna hook up the negitive keysense from the bypass to the wire on bcm wondering anyone know what color and plug and pin it is on the bcm??
Posted By: xtremej
Date Posted: April 23, 2007 at 11:21 AM
The wire is light green, not sure what pin on the bcm.
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