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

Weird phenom

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Old May 14, 2018 | 09:02 PM
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Default Weird phenom

In my led display right next to where the fuel level is displayed, every 1.5 minutes she screen flashes these three letters " SYS ".
What is that. Fresh from the shop with no stored codes.
What say ye?
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Old May 14, 2018 | 09:04 PM
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Low battery charge?
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Old May 14, 2018 | 09:06 PM
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Brand new Interstate "Optima equivelent" one week old This battery could make the starter literally power the car down the road!
Damn. Your response was Jimmy Johns fast!
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Old May 14, 2018 | 10:42 PM
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Looks like this is common when anything BUT the stock stereo system is used. Mine is dead so some idiot installed an aftermarket one.
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Old May 14, 2018 | 11:55 PM
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Originally Posted by MikieG1971
In my led display right next to where the fuel level is displayed, every 1.5 minutes she screen flashes these three letters " SYS ".
What is that. Fresh from the shop with no stored codes.
What say ye?
How did they check for codes?

http://www.digitalcorvettes.com/foru...41&postcount=3
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Old May 15, 2018 | 10:39 AM
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Are any other lights coming on/flashing?

I have a similar issue where sys flashes in sync with the security light (bottom left of the dash) and the ASR Service light comes on. Apparently it points to some common cold solder issues in the ECU.
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Old May 15, 2018 | 07:17 PM
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No flashing lights or codes. I firmly believe it is because the stock stereo is dead.
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