C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

"SYS" flash

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Old Oct 20, 2013 | 12:43 AM
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Default "SYS" flash

Hi all, I am getting a "SYS" flashing indicator in my speedometor. The flash indicator rolls between my "MPG" and flashes about 3 times every few minutes. Can anyone let me know what I need to do to diagnose this? Thanks.
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Old Oct 20, 2013 | 12:58 AM
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Charging system problem. Try checking cable connections at battery for corrosion and if battery is not too old, charge it.
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Old Oct 20, 2013 | 02:47 AM
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Originally Posted by hgoodwiniii
Can anyone let me know what I need to do to diagnose this?
http://forums.corvetteforum.com/c4-t...ashes-sys.html
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Old Oct 20, 2013 | 08:46 AM
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Originally Posted by Silver96ce
Charging system problem. Try checking cable connections at battery for corrosion and if battery is not too old, charge it.


But one other possibility to list.
What year is your car?
Have you just installed an aftermarket audio system?

If you haven't, then a low/bad battery and/or connection is what to look for.
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Old Oct 20, 2013 | 09:48 AM
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When's the last time you drove her? Mine had the same problem last winter when I couldn't drive it for 3 weeks. Ended up being the battery needing a charge. Bought a battery tender and never had the problem again.
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Old Oct 20, 2013 | 12:28 PM
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It's a 91. I've been driving it regular for the past month. Battery is fairly new. I'll have it tested along wth alternator. Thanks.
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Old Oct 20, 2013 | 08:50 PM
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Have you been into the ECU? I didn't seat the memcal correctly and I got this message on mine.
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