1999-2002 Silverado Remote Start w/Keyless Pictorial

Just wanted to add that I found it a little confusing that in the 6 heavy gauge harness (10 Gauge)you tie into the Ignition and Starter wires in the ignition harness and those 2 wires appear to be 16 Gauge, just doesn't seem to match up, but it worked. Looking at the lone yellow wire that just crosses through the entire area made me wonder if that was supposed to be used because of the heavy gauge, so I searched around and found out that it's most likely the Air Bag, good thing I didn't tap it.Dave

Always be careful with yellow plugs and wires.  In this case, that is a yellow sleeve over several airbag wires. 

It's becoming common to find wires of difference gauges in the main ignition connector, like this 2011 RAV4 :

Soldering is fun!

I have a 1999 silverado and followed this write up to attempt to install a remote start. I went through the brief instructions that came with the unit and hooked everything up according to this write up. Audiovox model# AS-9055T is the remote start I picked up, didn't need anything with keyless entry or security since my truck is not equipped with either. I hooked everything up, tried to program tach rate which I don't know if it was successful, and programmed my remote. The truck fired with the click of the remote and then shut off after a second and the starter continued to crank until I pressed the brake. Any ideas?

No keyless or Oem Security doesn't mean no passlock ie VATS which needs a bypass type install. Using the included resistors with the unit as per the VATS instructions. Key cylinder Wires should be small diameter that are White and WHITE/ Black Or WHITE/ Blue and WHITE/ Yellow. Using a relay and matching resistor to the VATS wire #1 (White or WHITE/ Blue). Following the VATS instructions in the Audiovox manual. Resistor is now part of the key cylinder its self instead of being in the key as the manual lists. You need to check you wiring to starter as it shouldn't continue to crank for more that a few seconds unless you have a bad unit or the wrong wire connected to the starter. Seen one other Audiovox that cranked until you pressed the brake but this years ago. Disconnect the yellow R/S wire from vehicle and the use a DMM to test it by hitting the R/S, with one test probe to ground and verify that it times out.

As Lurch says, you need a Passlock2 bypass. You can achieve this a few ways. If you have a Digital Multi Meter, various resistors and a relay or two, you can do it following DEI Tech Tip 1048. Here is a link to this document : https://www.the12volt.com/installbay/file.asp?ID=1206 If you want to save some time and trouble, get a Passlock2 bypass module. My suggestion would be an iDatalink ADS TB GM, ADS TBSL GM or ADS TBSL PL. All come pre-loaded with the correct firmware and are extremely reliable. Another decent choice would be the Fortin PASSLOCK-SL2-V2. It's possible your over-crank condition is due to the Tach learn.Soldering is fun!

Thank you for the quick responses. This is my first install and wasn't aware that the vats bypass needed to be used. I will try the bypass tomorrow and follow the diagram in the manual. Thanks for the assistance

You will only cut the one VATS wire #1 (White or WHITE/ Blue) to go thru relay and connect to the other. Test the lock cylinder resistance and match it for the relay to goto the #2 WHITE/ Black OR WHITE/ Yellow.

OK so I found 5 wires that go up towards the key cylinder. A group of 3 that go towards the topside of the cylinder (RED / white, ORANGE / black, and yellow), and the group of two which go towards the back of the cylinder (brown and green). I cut the yellow wire in the group of 3 and stripped the ORANGE / black and get no resistance when the key is off or in the on position. I tried from the cut yellow to the RED / white and had a resistance around 6k when key was off and nothing when the key is turned on. Also the truck would not start at all when the yellow wire was cut. Am I looking at the right wires? Why will my key not show a resistance so I can match a resistor?

Your key wont show a resistance because you don't have a VATS system like you have been told. You have a Passlock 2 system and your resistance has to be tested from the yellow wire from the group of three passlock wires. these are your wires: RED / white (12v), Yellow ( R-code or Resistance), ORANGE / Black (Passlock ground). You will only use yellow and ORANGE / black. Here's a link on how to bypass it (Refer to method one for wiring): Directed Tech Doc 1048I drink current, eat ohms, and bleed voltage