2004 Pontiac Grand Prix, keysense

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=69426
Printed Date: May 19, 2025 at 8:16 AM

Topic: 2004 Pontiac Grand Prix, keysense

Posted By: northern
Subject: 2004 Pontiac Grand Prix, keysense
Date Posted: December 28, 2005 at 10:44 PM

Trying to find the key sense wire for an 04 grand prix. Directed and astrochart say pin 40 Green wire under the dash, I found that pin and tested it with a multimeter, with no change from when the key is out and in and turned in the ignition.

Any one have any hints?

I am using a tk3 universal bypass kit.

Replies:

Posted By: KarTuneMan
Date Posted: December 28, 2005 at 10:56 PM

Do you have the correct lt.green.....there are 2 one on each side of the white brake wire?

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Posted By: northern
Date Posted: December 29, 2005 at 10:04 AM

Yep, I see there are 2 wires on one each side of the white wire, one tests 0 volts with out the key in, and tests 3 volts at the ignition position. The other one (the one at pin 40) tests 0 at key out and 0 at key in and 0 at key to ignition position.

Posted By: sparkie
Date Posted: December 29, 2005 at 3:44 PM

The key sense wire is in position 40 of the 52 pin connector at the bottom of the BCM. This is the large connector beside the small 18 pin plug. You can also get the same wire in the ignition switch harness. It's the only light green wire in that harness.

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sparky

Posted By: northern
Date Posted: December 29, 2005 at 4:05 PM

Thanks, I ran it with out the keysense wire, it ran well, so we will see.

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