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

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Old Jun 8, 2003 | 07:02 PM
  #1  
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Todd15
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Default sys?

my cars a nightmare right now.....anyways when im driving underneath/beside the speedo it flashs either sys or 5y5 every 5 mins or so.........any idea what this means? i have a 93 6 speed thanks


[Modified by Todd15, 12:04 AM 6/9/2003]
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Old Jun 8, 2003 | 07:12 PM
  #2  
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Default Re: sys? (Todd15)

It could be a low battery.
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Old Jun 8, 2003 | 07:30 PM
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Default Re: sys? (Todd15)

my car is a nightmare right now...
In what manner?

The flashing letters may mean there are diagnostic trouble codes stored. Down-loading the codes may provide the answer to your problems.

Here is a link for EMC problems and remedies: http://www.c4vettes.com/ecm.htm
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Old Jun 9, 2003 | 07:46 AM
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Default Re: sys? (Oldman)

:iagree:

The GM service manual says the dash will flash SYS every few seconds when the CCM has trouble codes stored.
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Old Jun 9, 2003 | 05:09 PM
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Default Re: sys? (Atok)

The sys light also comes on if you replaces the stock radio. there is a fix for this in the Audio section if you just replaced the radio.
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Old Jun 9, 2003 | 06:00 PM
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Default Re: sys? (Fett)

When I first got my Vette this happened to me. The car ran rather sluggish and I knew the battery needed to be replaced.

I took it to the dealership because I didn't know very much about vette's at the time and I wasn't a forum member.

The dealer said I needed my ECM replaced @ $550. I'm still skeptical to this day whether it needed to be done or whether is was even done in the first place.

:lurk:
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