ok i dealer just called and they said they just noticed the sys light flashes every 15-20 seconds, they said it was some kind of electri code or something. then he called back and said after driving the car for about 15mins it went away. i'm going monday to buy it its the car i posted in another thread called buying my first vette on monday...

he this something big or should i run away from the car. they said the car runs perfect and the trav=nny shifts perfect and all the lights work.
i did a search on the internet and it said its usually due to a worn or dead battery. the car sat he said for about 5 days what does everyone thing. i'm ying to get it on monday can't wait. but now i'm alittle scared need advise please
thanks scott

 

does it have an aftermarket radio?

It could be the battery, or it could also be an issue with the dimmer circuit if an aftermarket radio is in there.

 

yes it does have a aftermarket radio kenwood ..

 

If it went out after driving I would say it is due to the radio. If it was due to the battery causing an undervoltage situation, it would not reset until the ignition was recycled i.e. turned off and then back on. Tell the dealer to put it on a charger and see if it clears.

 

thanks guys for all the help i'm just so excited about getting my vette on monday but also scared about being ripped off.

 

Scott, I just posted a thread this afternoon regarding my 92 and a flashing "SYS" indication that was displayed while I was monitoring the digital coolant temperature. Just to be certain we're not mixing apples and oranges, this was not a flashing light (like the flashing SES idiot light), but rather was displayed in place of the digital temperature (oil or coolant).

I'm not sure what year you're looking at, but here is what the 92 owner's manual has to say on page 105: "System Problems: The Central Control Module (CCM) controls several electronic systems on your Corvette. SYS will flash three times every 15 seconds if there is a problem with one of the CCM-controlled systems. Have your vehicle checked by a Chevrolet dealer if SYS keeps appearing."

If you're interested, the following link is to my earlier post regarding the history codes that I pulled this afternoon. http://forums.corvetteforum.com/show...51&forum_id=48

Before buying this car, I strongly advise that you pull the history codes from the CCM & ECM if at all possible to give you a better idea of what's been going on. Based on your description of this particular "dealer's" response, I take it they are not a GM dealer and probably have no idea how to pull the fault codes, let alone clear them so that you can't see them.

Assuming it's an appropriate OBD1 equipped year, a paper clip on the proper pins will give you access to all three of the modules (CCM, ECM, & ABS/ASR) along with both the current and history fault codes stored in each module.


Good Luck!

 

This might be longshot for a suggestion, but I had a fuse for the interior lights blow, then the sys light was flashing until replaced. Might be as simple as a fuse.

 

Pull the CCM codes.

 

What year is it? If it is a 90 I can scan the section of the manual that would tell you all you need to know to get and interpret the codes.

Doug

 

take it to AutoZone or something like that... they can pull codes for free.

 

its a 1995 they are not a gm dealer, so far the saleman be really great about calling me with anything he finds, i will go check it out on monday , test drive it check out everything under the hood and under the car, is she runs strong and everything works out i will buy her . when i get her back home to conn i will bring her into the gm dealer with i i deal with and have him pull all the codes and try to fix the issue if there is one. i will keep everyone posted can't wait till monday. this is gonna be a long weekend !!!!

 

I wish you all the best in your purchase and hope your local GM dealer is run by saints. The last thing I would want to do is pay $75+ an hour while the dealer's "technicians" chase down electrical gremlins and throw God only knows how many parts at the problem to make it go away.

As for the long weekend, you could do a lot worse than going through the forum and learning as much about your car as possible before you buy. The following link is a great place to start.

http://forums.corvetteforum.com/show...61&forum_id=48

 

man, I can feel and relate to your excitement! after you get your baby-do yourself a favor, get the Helms manuals, even if you're not mechanically inclined you sure can get an education reading through them and it might just save you from getting ripped off by repairmen.

 

Thanks I Will Go To The Store And Look For The Book Today. Thanks

 

I have aftermarket radio in my car when I purchased it and I kept on getting the flashing SYS. I didn't want to yank out radio just to put in the resistors so i decided to live with it.

 

do the sys light flashing hurt anything if its caused by the radio?? if it is the radio can i bring it to a radio shop and have them put in the reisters??

 

The SYS flashing shouldn't hurt anything, it's just damn annoying. If you pull the CCM codes, you'll probably get an H72 and an H74. These are set when the CCM detects an error in the output of the dimming circuit. You can install resistors to trick the CCM. Here's the TSB on the problem. Radio TSB for 90 - 93 Corvette

 

Mine started flashing "Sys" when the battery was almost run down... replaced with a new Die Hard and no problems.