08 jeep wrangler disarm wire

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=110198
Printed Date: July 18, 2025 at 2:37 PM

Topic: 08 jeep wrangler disarm wire

Posted By: coyote72
Subject: 08 jeep wrangler disarm wire
Date Posted: December 30, 2008 at 9:44 PM

Hey guys,

Looking for the color & location of the factory disarm wire (and resistor value if needed).

I have installed a Hornet 569T remote start & for the "Alarm Disarm" the Directed wiring sheet says Factory Remote Only where the color/location should be.

For "Disarm No Unlock" it says Sentry Key Immobilizer.

So I installed a Directed 556cw bypass for it and assumed this would also disarm the alarm as well as bypass the Sentry Key system...I guess I was wrong.

For me to start the vehicle I must first hit "unlock" on the factory key fob & then the remote start button on the 569T key fob to start the car. I can then hit "lock" and the car continues to run.

If I do not hit the unlock button before the start button the alarm/horn sounds.

I'd sure like to find that darned disarm wire if it exists.

Thanks in advance.

Replies:

Posted By: Ween
Date Posted: December 30, 2008 at 11:19 PM

hi,

you'll need to have the vehicle see the keysense resistance (approx 8.5K ohms) on the PURPLE / brown at the ignition key switch and the immobilizer to disarm the alarm. diode isolate off of the factory disarm lead of the remote start.

mark

Posted By: coyote72
Date Posted: December 30, 2008 at 11:30 PM

Thanks Mark,

Just one more clarification please. I have the mux wire interfaced wired as shown on the diagram below. Which side of the "cut" do I want to hook onto or does it even matter?

posted_image

Thanks again.

Posted By: coyote72
Date Posted: December 31, 2008 at 7:14 AM

Also Mark...

What tye of diode and which direction should the band face.

Thanks.

Posted By: Ween
Date Posted: December 31, 2008 at 8:11 AM

the car side of the mux wire is fine, and 1N4001 or equiv. diodes, bands face the disarm lead of the rem start.

Posted By: coyote72
Date Posted: December 31, 2008 at 2:10 PM

Help again...

When I soldered a 8.2K ohm resistor to the 1N4001 diode and test across both I get 2.5M ohms (which is about the same as the diode by itself).

Is this correct or am I doing something wrong? And is 8.2K close enough to 8.5K to work?

Thanks.

Posted By: coyote72
Date Posted: December 31, 2008 at 2:12 PM

Oh & when I test the other way i get no reading.