Question about 2000 Chevrolet Express Cargo
Tail light don't work
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Posted on Jan 02, 2017
SOURCE: The security light came on
Yes you do have a security system. Its called passlock, and is more of an antitheft system than a security system. Actually you won't ever know you have it until someone tries to steal your vehicle or until it fails. Sounds like yours is failing. This link will help you understand the system and give you options to fix this yourself. http://vatspasslockpasskeysecurityhelp.yolasite.com/
Posted on Jul 01, 2011
Well its an 85 to begin with . Lot s of these vehicles are kept in garages most of the time but still rust never sleeps . You say that the brake and blinkers work thats a good sign . What you need to out is witch lights control the running lights .I mean are they a seperate light or work in conjuntion with the blinkers .In witch case a bad connection at the bulb or a burned out bulb could cause this . But hte most likely cause is a broken ground wire to the lights or a bad ground witch would go to the frame . Try looking under it and pull on ground wires and see if it starts to work they would be black wires and go to the frame or body And you will have to remove the screws that hold the lens in and the assmbely houseing to get a good look at it . Its a bad ground or bad light bulb
Posted on May 20, 2012
The security light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM. (Theft Deterrent Module) The TDM is what tells your computer that the correct key is being used and that it is "OK" to allow the vehicle to start and run. These 3 parts must be in CONSTANT communication. If the key is in the ignition, then these parts are sending important signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, (normally due to a failing/broken part) the car goes into antitheft mode. The car misinterperates this and thinks its being stolen or hotwired because it is NOT getting that signal from YOUR specific key. There is where the security light turns on and shuts down your vehicle. So basically, if that light is on, your system has some sort of failing part. This can start as an intermittent "no start", to your vehicle not running for days at a time, to the vehicle NEVER starting again. The problem is electrical and computer based, so don't count on an easy reset button, or the problem fixing itself. The hard part is isolating which part is the problem. You can spend a thousand dollars through a mechanic very easily. I have had great luck with bypassing the entire system. This way the problem will never return. It actually CAN'T ever return because it is eliminated. This can also be done yourself at a much cheaper cost. Read through this link very carefully. You'll find alot of information and pictures, along with ways to help you fix this.
Posted on May 23, 2012
ck. the ign switch and batt. terms.
Posted on Jun 11, 2012
This is almost always caused by a failed part inside the transmission, the transmission needs to come out and be rebuilt.
Posted on Jun 12, 2012
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