2000 C5 directional issue - CorvetteForum - Chevrolet Corvette Forum Discussion



C5 Tech
Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

2000 C5 directional issue

Reply
 
 
 
Thread Tools Search this Thread
Old 06-12-2017, 04:55 PM   #1
PetersC5
CF Senior Member
Thread Starter
 
PetersC5's Avatar
 
Member Since: May 2010
Location: Rehoboth Massachusetts
Posts: 156
Thanked 1 Time in 1 Post
Default 2000 C5 directional issue

directional's have been intermittent with hyper-flashing, left inop, right inop etc,
assumed 4 way flasher.... bought new flasher and just got done replacing it. miserable job and it didnt work.
Both directionals are hyper-flasing the rear bulbs.... new bulbs in front, same result.
cleaned left and rt grounds at chassis behing headlights no luck....
assuming a bad grouns somewhate any thoughts
PetersC5 is offline   Reply With Quote
Old 06-12-2017, 10:06 PM   #2
SilverC54me
CF Senior Member
 
SilverC54me's Avatar
 
Member Since: Jul 2004
Location: Brea CA
Posts: 1,089
Thanked 47 Times in 46 Posts
Default

Check the multi pin connector just behind the passenger rear wheel. This is the harness for the rear taillights. A friends car had the ground wire fail on the car side of the harness causing a multitude of lighting issues, no taillights, hyper flashing, no brake lights.

We had started with the usual suspect the multi-function switch but found quickly that was not the problem. Ended up moving the ground wire out of the connector on the taillight harness side and attaching it to the ground post that is right there. Due to other issues, I ended up doing a complete rebuild on the harness.

Gary
SilverC54me is online now   Reply With Quote
The Following User Says Thank You to SilverC54me For This Useful Post:
PetersC5 (06-13-2017)
Old 06-13-2017, 11:08 AM   #3
PetersC5
CF Senior Member
Thread Starter
 
PetersC5's Avatar
 
Member Since: May 2010
Location: Rehoboth Massachusetts
Posts: 156
Thanked 1 Time in 1 Post
Default

It's actually the fronts that don't work intermittently, the rears always work, except they fast flash or as i call it hyper-flash when the problem occurs....
It started a year ago with the left front only, then moved to the right front, then it would be both left and right front.
I put in new bulbs 2x, cleaned the connections checked best possible all grounds? seemed related to heat so i was positive it was the flasher, no luck here, put in the flasher yesterday and nearly shot the dash when the problem repeated....(whoever designed this flasher mount should be shot)

When it hyper flashes the bulb in front wont blink, nothing..... but if i pull the bulb put a test-light to the positive, the test light will blink in hyper mode.... this lead me to suspect the ground but even supplying an auxiliary ground to the socket with the bulb plugged in doesn't to it.
then it suddenly stops and its fine for a week, then it repeats.

I'm thinking of trying the multi function but at $200 id like to see if there are any other thoughts or opinions on this switch thought or if someone has other connectors to try...... I hate like hell to turn a tech at the dealer loose with an electrical gremlin...
PetersC5 is offline   Reply With Quote
The Following User Says Thank You to PetersC5 For This Useful Post:
SilverC54me (06-13-2017)
Old 06-13-2017, 12:01 PM   #4
ehillard0
CF Member
 
Member Since: Feb 2016
Location: Kirkland WA
Posts: 72
Thanked 11 Times in 9 Posts
Default

I had the exact same problem with my '97, where the fronts didn't work intermittently, but the rears always worked.

When I went to replace the turn signals, I found the contacts all corroded, burned, and even seemed to be a little loose. I ended up buying new Turn Signal Lamp Sockets for the front left and right turn signals, cutting the old sockets off, and then soldering the new sockets to the existing wiring harness, which solved my problem. I finally have working turn signals!

Rock Auto has after market Turn Signal Lamp Sockets for about $6 each, or the factory AC Delco ones for about $32 each. Might be something to try?
ehillard0 is offline   Reply With Quote
Old 06-13-2017, 12:11 PM   #5
PetersC5
CF Senior Member
Thread Starter
 
PetersC5's Avatar
 
Member Since: May 2010
Location: Rehoboth Massachusetts
Posts: 156
Thanked 1 Time in 1 Post
Default

thanks, the front sockets are clean as can be ...... appreciate the advice
PetersC5 is offline   Reply With Quote
Old 06-14-2017, 11:38 PM   #6
Tttiger
CF Member
 
Tttiger's Avatar
 
Member Since: Feb 2014
Location: Hollister CA
Posts: 61
Thanks: 0
Thanked 3 Times in 3 Posts
Default

Quote:
Originally Posted by PetersC5 View Post
thanks, the front sockets are clean as can be ...... appreciate the advice
Check the hazard flasher. The turn signal circuit goes through it. Try pushing it the hazard light switch on and off a bunch of times to clean the internal contacts. If the turn signals starting behaving, you may need to replace the hazard switch. It's a pain to replace.....
Tttiger is offline   Reply With Quote
Old 06-16-2017, 08:13 AM   #7
Greg_E
CF Senior Member
 
Greg_E's Avatar
 
Member Since: Jun 2002
Location: Middletown CT
Posts: 2,185
Thanked 45 Times in 43 Posts
Default

Check/Clean SP102, SP100, and G102 and see if that fixes it. Those are the splice packs and ground for the front turn signal lamps and other things.

Reread your post and I guess you've already done that. Check the ground wires from the bulb sockets to ground with a meter.
Attached Images
File Type: pdf 2000 Front Park Lamps.pdf (172.7 KB, 9 views)

Last edited by Greg_E; 06-16-2017 at 08:20 AM.
Greg_E is offline   Reply With Quote
Old 06-19-2017, 05:07 PM   #8
PetersC5
CF Senior Member
Thread Starter
 
PetersC5's Avatar
 
Member Since: May 2010
Location: Rehoboth Massachusetts
Posts: 156
Thanked 1 Time in 1 Post
Default

I'd cleaned SP 100 and SP102 when it initially did this funky fast blink act....
Sometimes its the left side, sometimes its the right, sometimes both. When this happens, the rears always fast flash with the front bulb inop.
Since the new 4 way didn't fix it, I've ordered a multi-function switch ??
In testing everything, if i ever so gently / slowly put either the left or right directional on, the directional on either side will first start to fast flash before you get to the full on position so I'm hoping its multi function.
PetersC5 is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • 2000 C5 directional issue
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Hyper flashing brake lights DWD66VETTE C1 & C2 Corvettes 22 08-27-2016 07:16 PM
    New C5 owner - fast signal light issue deejbee C5 General 5 08-17-2016 08:32 AM
    Front turn signals/flashers issue Jamo2527 C5 Tech 10 05-06-2016 02:05 PM
    New flasher installed. Now have hyper flash fuelspill C5 General 5 02-20-2016 10:40 PM
    Turn Signals Went Inop Yesterday Tom69 C3 General 2 01-19-2016 07:30 PM


    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump


    All times are GMT -4. The time now is 06:30 PM.


     
    • Ask a Question
      Get answers from community experts
    Question Title:
    Description:
    Your question will be posted in: