Club Cobra Keith Craft Motorsports  

Go Back   Club Cobra > Manufacturers, Engine Builders, tools, and parts. > Superformance

MMG Superformance
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
Keith Craft Racing
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
Keith Craft Racing
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree3Likes
  • 1 Post By KirkV
  • 2 Post By Blas

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 09-02-2018, 10:45 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2011
Location: Peoria Illinois, il
Cobra Make, Engine: Superformance #678
Posts: 264
Not Ranked     
Default Headlight issue

So driving 0678 home last night near dark and the headlight went dark. Had the brights on but when I hit the bright switch to turn them off I still had nothing.

I was only a mile from the house so no big deal, but today I dug into it. I have no power to the headlight on dim or bright so it is not a ground issue. I check the fuse and find it’s good, and start trying to manipulate the switch out of the dash to check it but can’t seem to get enough wire to get it out of the bottom to test.
I check again and I have brights as long as I hold the bright switch down but no dims yet.
I found the fan relay, the bright relay, but not the dim relay. I am about ready to wait till winter and pull the dash to get access to all of the wiring and get the two relays re mounted I took out I could reach.

Any other suggestions would be appreciated as I can tie wrap the bright switch if needed till then but I hate having something rigged to work.

I stil have running lights and brake a turn signals just no dim headlights?
Thx kirk
Reply With Quote
  #2 (permalink)  
Old 09-02-2018, 01:46 PM
Tom Wells's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Mar 2000
Location: St. Augustine, FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,912
Not Ranked     
Default

Kirk,

Here are a couple of seemingly related threads: Headlight relay replacement... and Low Beams Not Working (first night drive)

I'll bet someone here could tell you exactly where that relay is located!

Hope this helps,

Tom
__________________
Wells's law of engine size: If it matters what gear you're in, the engine's too small!
Reply With Quote
  #3 (permalink)  
Old 09-02-2018, 04:05 PM
Blas's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,387
Not Ranked     
Default

The relay in question is located on the back side of the dash. There are a grouping of 3 relays there. That are laced to the dash. If original, the relay in question is silver in color. But due to the age of your car, I would bet it has been replace at least once and I’d probably loose and easily accessible.
Reference part numbers are on my Wiring Diagrams.
Blas
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, & Cinema Tribute Cars.

Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
Reply With Quote
  #4 (permalink)  
Old 09-02-2018, 05:09 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2011
Location: Peoria Illinois, il
Cobra Make, Engine: Superformance #678
Posts: 264
Not Ranked     
Default

Blast is it accessible any way but dropping the dash? I found the fan and brights relay but not the sims relay. Or is the brights relay the dim light relay as well?
saltshaker likes this.
Reply With Quote
  #5 (permalink)  
Old 09-02-2018, 09:36 PM
Blas's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,387
Not Ranked     
Default

I am still in Bolder for the Shelby show last Saturday. I return home tomorrow. I can send you a photo then. There are 3 relays that are mounted close together with 3 separate plastic zip ties. I use a long pair of surgical hemostats to crack the zip ties. All three relays will drop down and then be accessable. All headlights (std and brights) run thre one relay. It is called a latching relay. (DIN 0127 if I recall)
There is the start inhibit relay there and the fan relay too.
Blas

Who’s BLAST.
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, & Cinema Tribute Cars.

Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net

Last edited by Blas; 09-02-2018 at 09:40 PM..
Reply With Quote
  #6 (permalink)  
Old 09-02-2018, 11:42 PM
ACHiPo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2016
Location: Pleasanton, CA
Cobra Make, Engine: ERA 824 with 470 FE BBM street 427
Posts: 550
Not Ranked     
Default

Could be the relay, but could also be the connection under the front fenders. I had a similar issue. After replacing the relay it still didn't work. Pulling the connectors apart and cleaning contacts with Caigs contact cleaner the low beams worked again.
Reply With Quote
  #7 (permalink)  
Old 09-03-2018, 04:07 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2011
Location: Peoria Illinois, il
Cobra Make, Engine: Superformance #678
Posts: 264
Not Ranked     
Default

Who’s Blast? Damn autocorrect lol, ok so I have the correct relay pulled down as it clicks in when I pull the bright switch but does not latch in.
Thanks so much and I will get another switch ordered.
Reply With Quote
  #8 (permalink)  
Old 09-03-2018, 07:47 AM
Blas's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,387
Not Ranked     
Default

The latching relay will click when a ground is MOMMENTARILY sent to it via the switch on the stalk. If you manually hold a ground wire to it for and extended period you fry it.
Blas
Ron61 and Moto One like this.
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, & Cinema Tribute Cars.

Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
Reply With Quote
  #9 (permalink)  
Old 09-03-2018, 09:34 PM
ACHiPo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2016
Location: Pleasanton, CA
Cobra Make, Engine: ERA 824 with 470 FE BBM street 427
Posts: 550
Not Ranked     
Default

Another thing I had to do was pull the dimmer switch off the stalk and emery the contacts--that momentary thing that Blas talks about.
Reply With Quote
  #10 (permalink)  
Old 09-03-2018, 11:15 PM
Gaz64's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: Brisbane, QLD
Cobra Make, Engine:
Posts: 2,773
Not Ranked     
Default

Quote:
Originally Posted by Blas View Post
The latching relay will click when a ground is MOMMENTARILY sent to it via the switch on the stalk. If you manually hold a ground wire to it for and extended period you fry it.
Blas
And why does that occur?

Sounds like a design fault.

Any relay I know of can be setup as a latch, and the operate momentary pulse width (even on permanent) makes no difference.
__________________
Gary

Gold Certified Holden Technician

Last edited by Gaz64; 06-14-2019 at 10:29 PM..
Reply With Quote
  #11 (permalink)  
Old 09-07-2018, 02:04 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2011
Location: Peoria Illinois, il
Cobra Make, Engine: Superformance #678
Posts: 264
Not Ranked     
Default

Blas,

I got my new relay and all is good the lights work like a dream. Thanks so much
Kirk
Reply With Quote
  #12 (permalink)  
Old 09-07-2018, 05:39 PM
Blas's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,387
Not Ranked     
Default

Excellent.......
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, & Cinema Tribute Cars.

Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
Reply With Quote
  #13 (permalink)  
Old 06-14-2019, 07:53 PM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2013
Location: Vancouver, BC
Cobra Make, Engine: ERA #456
Posts: 30
Not Ranked     
Default

Where under the dash is this relay? Bent my old body under there to try and find it, then I needed a crane to pull myself out. Can't find it.
Reply With Quote
  #14 (permalink)  
Old 06-14-2019, 08:16 PM
Blas's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,387
Not Ranked     
Default

Send me a message and include your car number. Can be in multiple positions depending on chassis number....Blas
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, & Cinema Tribute Cars.

Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 08:29 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink