'Sys' Flashing on display ?

[Ted Krempa]

Lo and behold, a flashing 'sys' has shown up on the left side of the display. The factory shop manual says this is some message about a problem in the CCM module. Manual does not seem yo have any solution...

Is this something to worry about ?? Any thoughts appreciated

 

[SPANISHVETTS]

Pull the codes and see what they have to say.
Check the alternator and battery…. Is the car doing anything funny? A weak battery or failing alternator will usually start the SYS light flashing.
If you find no other problems disconnect the neg battery terminal for a few seconds and reconnect it. It the light stays out you are the victim of the infamous random Corvette ground failure… be happy that you do not own a ’90.

 

[93*Corvette]

Do you have an after market radio?

 

[partspup]

Spanishvettes, why do you say be glad you don't own a 90? I (knock on wood) I haven't had any yet.

 

[Ted Krempa]

Thanks for the input. Factory Manual says no specific codes for CCM. No aftermarket radio...and...today after about a 50 mile ride, no more flashing ???? but I think I'll pop that battery cable just for fun

Thanks, Ted

 

[SPANISHVETTS]

Spanishvettes, why do you say be glad you don't own a 90? I (knock on wood) I haven't had any yet.

'90s have more bad ground related problems than other years. GM did not learn about dielectric grease untill 91.

 

[partspup]

Thanks, I constantly keep track of different problems with 90's but I picked up that everyone uses dielectric grease so I have used it also. I'll make sure I use it all the time.