$projecthp
  • Help on a few questions....
  • Help on a few questions....
  • Help on a few questions....
  • Help on a few questions....

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  1. #1
    New Member
    Join Date
    Aug 2016
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    Skidmore,Texas
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    13
    Corvette(s)
    1993 Forrest Green Coupe, 1982 Red Coupe
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    Default Help on a few questions....

    Hey guys/gals, I've got a 93 standard model. I'm getting ready to tear into the dash to replace the stereo system, but before I do I have a few issues that maybe in the dash area (only want to tear into it once).

    First thing is I have a SYS display that flashes 3 times and goes out for 15 seconds then repeats. If the door is open it doesn't do it, as soon as you close the door it does. Any tips what it is and maybe what's causing the problem?

    Second thing is the Display on the LCD speedo is DIM. Difficult to see during the daylight hours and not very bright at night. The cluster lights are fine and are adjustable.

    Third thing is the Courtesy lights (at one time would fade out when you closed the doors) now they won't shut off, unless I pull the fuse.

    Any help or direction to correcting these issues would greatly be appreciated!

    Thanks to all in advance!
    Bobby
    Last edited by newtwoC-4; 08-04-16 at 12:13 PM.

  2. #2
    Member
    Join Date
    Nov 2004
    Location
    Windsor Mill, MD
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    649
    Corvette(s)
    89 Brilliant Red Metallic
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    Default

    Quote Originally Posted by newtwoC-4;1179558

    First thing is I have a [B
    SYS display [/B]that flashes 3 times and goes out for 15 seconds then repeats. If the door is open it doesn't do it, as soon as you close the door it does. Any tips what it is and maybe what's causing the problem?

    Second thing is the Display on the LCD speedo is DIM. Difficult to see during the daylight hours and not very bright at night. The cluster lights are fine and are adjustable.

    Third thing is the Courtesy lights (at one time would fade out when you closed the doors) now they won't shut off, unless I pull the fuse.
    SYS indicates the CCM has stored a trouble code.
    Take a piece of wire or paper clip and connect Pin A to Pin G on the diagnostic connector located above
    the drivers right knee.

    Turn the ignition On and look at the dash cluster LCD.
    Module 1 is the CCM
    Module 4 is the ECM
    Module 9 its the ABS/TCS

    Your LCD is probably bad.
    Go to this site and and contact Batee.
    BATEE.COM - Porsche and Corvette Electronics Repair Services, Parts and DIY

    Could also be the SYS is indicating some thing is wrong with the courtesy lamp relay.

    Also take the door key and lock and unlock each door. When you remove the key make sure
    the key cylinder is in the vertical position if they are not that can keep the courtesy lights on.

    Here's a picture of the diagnostic connector pin out.


  3. #3
    New Member
    Join Date
    Aug 2016
    Location
    Skidmore,Texas
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    Corvette(s)
    1993 Forrest Green Coupe, 1982 Red Coupe
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    Default Thanks for the info!

    Well after installing a new stereo and cleaning up the chop job someone else did.... The curtesy lights seem to be working properly after reinstalling the fuse along with the accessory outlet. The SYS display seems to have gone out also. The only thing left is the speedo display. I will contact the source you supplied.
    Thanks for your response, it's greatly appreciated!

  4. #4
    Moderator Toms007's Avatar
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    Sep 2004
    Location
    Southwest Kansas
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    6,209
    Corvette(s)
    2007 Atomic Orange Coupe
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    Default

    Welcome to CAC, NewtwoC4. As you have already found, our community is full of very helpful people. I hope you are able to complete the repair in of your 93.
    2007 Atomic Orange Coupe Cashmere/black interior

    2005 CruiseFest Attendee (Bowling Green, KY) 2007 CruiseFest Attendee (Colorado Springs, CO)
    2008 CruiseFest Attendee (Cleveland, OH)
    2010 Cruisefest Attendee(Effingham, IL)
    2011 CruiseFest Attendee(Effingham
    , IL)

    Formerly owned Corvettes: 1964 coupe, 1994 coupe, 2001 coupe


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