2000 Chevy Venture 3400. Question = I have a 2000 Chevy Venture and I was having trouble with it. I used my other car and let it sit for 2 months. I have tried starting it now and it won't do anything. I have a battery charger and I know I have power to it. The dome and dash lights all come on. I get a "Security" warning on my dash now. I originally thought maybe the radio was tripping the alarm, but everything I have read said it should say LOC. It does not. Please help.
Answer: The problem you are having is with the theft system to prevent starting, a radio that says LOC or INOP is just a radio being locked and has nothing to do with the vehicle anti-theft system. A common problem with your condition is a faulty PASSKEY III module.
This is in the column and sends a signal to let the car start. You can try to do a re-learn procedure on the system. Sometimes this will let the van start for awhile. But eventually it will act up again. Also, if you have an aftermarket(non-factory) alarm or remote start, these can cause problems in the factory system.
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2000 Chevy Venture 3.4 SFI 3400 V6 Question = I have a 2000 Chevy Venture Van and i went to start it and it blew the DRL fuse and had no power at that point. I replaced the fuse and went to start it again and it had power on accessory and then lost all power again when i tried to crank it and none of the fuses are bad.
Answer: Be sure to check ALL the fuses. Underhood fuse block, and dash fuse block. Use a test light when checking, with the key on, that way you will know if you are getting power TO all the fuses as well as if the fuses are good. If you do not have power on a few of the fuses, then will need to look at some schematics.
Be sure to check that the battery cables are clean and tight. Have had many batteries where the lug in the battery is loose and will pull out of battery if you try to tighten the cable a little tighter. Or it may be leaking acid. If these basic checks dont show anything, then you may have an ignition switch or security problem for the no start condition.