I need a little advice please. I have a 93 vette and on the display near the fuel gauge the word SYS keeps flashing. Does anyone know what that means and is it an expensive repair or something I can do myself?
Thx
DJ

 

Usually means there is something wrong with the electrical system. Do you have an aftermarket stereo?

 

Also, a weak battery and cause the the same condtion.

 

The speedometer is used to display fault codes from the CCM, ABS/ASR and ECM. The odometer displays data, and the trip monitor indicates the system being tested and the test which is being performed.

The buttons on the Driver Information Center (DIC) are used to send instructions to the CCM when in the diagnostic mode.

System Faults:
There is no specific CCM lamp to indicate a fault. A code-setting fault in any of the CCM monitored systems is indicated by "SYS" (SYSTEM ERROR) flashing in the instrument cluster trip monitor. If a fault does not recur within 100 ignition cycles the CCM will automatically clear the code. The "SYS" indicator will flash 3 times every 15 seconds while a current fault code is present.

Exceptions:
Pass key fault codes 51-53 will be indicated by the "SECURITY" lamp being illuminated without the "SYS" indicator flashing. If a Fuel Enable Data Stream (FEDS) code 54 is present, the "SECURITY" indicator and "SYS" indicator will flash together.

HISTORY CODES
CCM history codes are those indicating that the CCM previously detected a fault which later disappeared. The reason could be that the fault is intermittent, or that the system that the code applies to is not currently being operated. If a CCM code is displayed as a history code, and the fault cannot be found easily, try clearing the codes and operating the system that the code applies to. If the code resets, it can be assumed the fault is present.

The Central Control Module (CCM) performs the following functions:

Ambient Light Signal Processing
Chime (Belts/Lights/Key Warning/Turn Signal Minder) Control
Courtesy Lamp Control
Delayed Accessory Bus (DAB) Control
Power Windows
Audio System
Dimming Control
Instrument Cluster LCD Backlighting
Instrument Cluster Gages Backlighting
LCD Backlighting (Radio, Electronic HVAC)
LED Indicator Dimming
High-Beam Indicator Dimming
Driver Information Center (DIC) Switches
Trip Odometer Reset
Average Fuel Economy Reset
Display Instant/Average Fuel Economy
Display Fuel Range
Display Normal/Trip Odometer
Display Digital Coolant Temperature
Display Digital Oil Temperature
Display Digital Voltage
English/Metric Mode Selection
On-Board Diagnostics Control
Engine Oil Life Monitor Reset
Fuel Level Detection/Processing
Instrument Panel LCD Digit Display
Fuel Level
Vehicle Speed
Trip Odometer
Normal Odometer
Fuel Range
Instant Fuel Economy
Average Fuel Economy
Digital Coolant Temperature
Digital Oil Temperature
Digital Voltage
Diagnostic Information Display
PASS-Key® (Personal Automotive Security System)
Rear Defog Control
Odometer Processing
Oil Level Monitoring
Status Warnings ("Check Gauges" Indicator)
Engine Coolant Overtemperature
Engine Oil Overtemperature
Fuel Level Low
System Component Fault Detection
System Diagnostics Processer/Controller
Trip Computer Processing For:
Instantaneous Fuel Economy
Average Fuel Economy
Fuel Range
Trip Odometer
UART Serial Communications Master
Universal Theft Deterrent (UTD) Control
Vehicle Speed Detection/Processing

 

For details on how to retrieve the code(s), look here: link

Scroll down for the instructions for 1993.

 

Here's a little more: link

 

This happened to me about two months ago. Turned out to be a battery. Thats where I would start anyway.

 

I just wanted to thank everyone for their kind feedbacks.

Thank U

Dan

 

Thank you all much appreciated