Electronic Dash
Thread Starter
8th Gear
Joined: Oct 2007
Posts: 8
Likes: 0
Electronic Dash
On my '93 with 295,000 miles on it, the SYS letters just started flashing on the dash. I know in the owners manual it states that this is a 'system error' and needs to be serviced by a Chevy dealer. Does anyone know the most likely cuplrit for this message, and should it be serviced? The car is in good shape and very reliable. Am planning to drive it for a bit yet.
Thanks to all for their help.
Rumblin Red Wreck
Thanks to all for their help.
Rumblin Red Wreck
Advanced
Joined: Jan 2008
Posts: 88
Likes: 0
From: Everett WA
Do a search, there's lots of topics on this, some are even current. I'm having the same problem and know it has something to do with the ECM/PROM. Some people get lucky and it turns out to be that the battery is going bad. How old is yours?
Tech Contributor
Joined: Aug 2006
Posts: 9,933
Likes: 103
From: Peoria Arizona.. Resident Gold Cylon
This was my guess too aftermarket radio. But the battery may be the issue as well. C4s require every volt of 12 volt power or they do strange things. Like flash codes etc
