05 silverado theft system light

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=100473
Printed Date: April 30, 2024 at 4:59 PM

Topic: 05 silverado theft system light

Posted By: bigdig
Subject: 05 silverado theft system light
Date Posted: December 27, 2007 at 11:37 AM

i installed the ultrastater on my truck just couldnt get it to work so i took every thing back out now my theft system light stays on in the cluster it doesnt flash its solid glow . any way to rest set the system to get the light off.

thanks for all your help

Replies:

Posted By: tedmond
Date Posted: December 27, 2007 at 2:27 PM

the passlock system is in tamper mode. Stick key in ignition, turn it to ON, and leave it for 10 min with door OPEN. it will learn the resistance code. I forgot what i did, but i was taught a way to get it out of tamper mode in 1 min. if i remember i will show u.

Posted By: bigdig
Date Posted: December 27, 2007 at 4:29 PM

that did work thanks for your reply

Posted By: bigdig
Date Posted: December 27, 2007 at 4:34 PM

sorry i need spell check ..... that didnt work but thanks for your reply

Posted By: KarTuneMan
Date Posted: December 27, 2007 at 7:50 PM

Get yerself a relay. ground pin 30, tie together 87 and 85 and take this to your ground while running BEFORE (in front of) your bypass.

You will trigger this relay (pin 86) with the pink ign. from the trucks harness. In line with this trigger wire you will need a diode. Cathode TOWARDS the relay.

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Posted By: jaywyatt
Date Posted: December 27, 2007 at 8:08 PM

tedmond wrote:

the passlock system is in tamper mode. Stick key in ignition, turn it to ON, and leave it for 10 min with door OPEN. it will learn the resistance code. I forgot what i did, but i was taught a way to get it out of tamper mode in 1 min. if i remember i will show u.

You may have to do this 3 or 4 times
leave the key on for 10mins try to start if it won't Don't turn the key off leave on for another 10min try and start and so on and so on.

Posted By: bigdig
Date Posted: December 28, 2007 at 11:43 AM

i got the truck started but the light is staying on .at least i can drive it now

thanks for all your help this site is great

Posted By: foxgt
Date Posted: December 31, 2007 at 12:28 PM

KarTuneMan wrote:

Get yerself a relay. ground pin 30, tie together 87 and 85 and take this to your ground while running BEFORE (in front of) your bypass.

You will trigger this relay (pin 86) with the pink ign. from the trucks harness. In line with this trigger wire you will need a diode. Cathode TOWARDS the relay.

I think this is the exact answer I was looking for in another thread.

My problem is the theft light comes on after key is put in the ignition and remote start is engaged. Tech support told me to hook up this exact relay (minus the diode) in order to fix the problem and it worked. However, I confirmed that this relay was staying activated and draining the battery every night on the truck.

I assume the diode will prevent the IGN circuit from being latched on? If so you have solved a lot of my problems.