New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Slow dim headlight

Old 12-18-18, 09:42 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Aug 2018
Location: North Carolina
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Slow dim headlight

Hey guys, ive read through some of the threads here and have had some luck on where the headlight ground is located. However i couldn't find any pictures. Im trying to find the exact location of the headlight ground for the right headlight. Any and all help is and will be greatly appreciated.
tflash21 is online now  
Old 12-18-18, 10:47 AM
  #2  
Rotary Madness
iTrader: (2)
 
rxtasy3's Avatar
 
Join Date: Jun 2002
Location: Spartanburg, SC
Posts: 7,548
Likes: 0
Received 64 Likes on 60 Posts
i won't try to guess what yr/gen rx7 u have so might i suggest downloading a copy of the repair manuals and wiring diagrams.

Foxed.ca - Mazda RX-7 Manuals
rxtasy3 is offline  
Old 12-18-18, 11:14 AM
  #3  
Junior Member
Thread Starter
 
Join Date: Aug 2018
Location: North Carolina
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
My apologies. I own a 93FD
tflash21 is online now  
Old 12-19-18, 08:57 PM
  #4  
Junior Member
 
Join Date: Dec 2018
Location: WA
Posts: 12
Likes: 0
Received 1 Like on 1 Post
Originally Posted by tflash21 View Post
My apologies. I own a 93FD
Try looking at JC-02



Source:

Originally Posted by nicad2 View Post
I recently started having a problem with my driver's side headlight. It was popping up very slowly or sometimes not at all. If it did pop up, the light was significantly dimmer than the other side. I have seen several posts by people trying to fix this exact problem. However, I couldn't find anyone who specified exactly which connector definitely causes this problem. Well at least not the connector that was bad in my case.

After a couple hours of tracing and replacing grounds, I found the culprit... JC-01. You can find this one on pages Y-2 and Y-3 of the Body Electric Manual. Since I have a Greddy FMIC, it was really tough to find. It was sandwiched between the frame and the top-back of the FMIC. I cut the old corroded connector off and soldered a new ground lug on. I then sanded off a patch of paint nearby and bolted it to the frame (you probably have several pre-tapped holes near the hood latch that would work great). The headlight is now working perfectly! While I was at it, I also replaced JC-02 which provides ground for the passenger side headlight among other things.

I strongly recommend checking/replacing your ground connectors when you have your car apart. There are at least 16 of these according to the FSM. I know others have found similar improvements when replacing the fuel pump ground. Why not make your interior lights a little brighter next time you have the seats out
dazed1 is offline  
Old 12-19-18, 09:16 PM
  #5  
Junior Member
Thread Starter
 
Join Date: Aug 2018
Location: North Carolina
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts


I saw this, I looked there and I saw the black connecter, it ran to a piece of plastic to maybe a ground, but Iím not sure.
tflash21 is online now  
Old 12-21-18, 01:25 PM
  #6  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
I have a similar issue with my 93 FD and canít locate the ground. Hoping this thread will help.
tckracker is offline  
Old 12-21-18, 02:15 PM
  #7  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by dazed1 View Post
Try looking at JC-02



Source:
Thanks for the diagram, found them. I was looking in the wrong spot.

Found the headlight grounds here. Hope this helps others with a similar issue.
tckracker is offline  
Old 12-21-18, 02:20 PM
  #8  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts

Passenger side
tckracker is offline  
Old 12-21-18, 02:20 PM
  #9  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts


Driver side
tckracker is offline  
Old 12-21-18, 02:22 PM
  #10  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
The two pics above are from inside the front bumper pointing back toward the engine compartment.
tckracker is offline  
Old 12-21-18, 02:24 PM
  #11  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
On mine thereís a small amount of rust on the threads of the bolt and paint on the contact points. Iím going to try cleaning them off and see if that improves the headlights.
tckracker is offline  
Old 12-21-18, 02:52 PM
  #12  
Junior Member
Thread Starter
 
Join Date: Aug 2018
Location: North Carolina
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Remove

Mine is RHD not that it should matter. What parts did you remove to get to it?
tflash21 is online now  
Old 12-21-18, 03:21 PM
  #13  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by tflash21 View Post
Mine is RHD not that it should matter. What parts did you remove to get to it?
My car is already partially apart. So I was able to get to it relatively easily. I went in through the front bumper radiator opening.
tckracker is offline  
Old 12-21-18, 03:24 PM
  #14  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Tflash21 you maybe able to remove the upper bumper mount bolts (shown in pic) to give you enough room to get in there. But if you need to do some grinding or wire brush work to clean up the ground contacts it might prove to be a little difficult.
tckracker is offline  
Old 12-21-18, 03:26 PM
  #15  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts

Sorry, forgot to attach pic...
tckracker is offline  
Old 12-21-18, 03:29 PM
  #16  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Just as another possibility of the lurking electrical gremlin...I found water and significant corrosion in this relay panel.


tckracker is offline  
Old 12-21-18, 04:00 PM
  #17  
Junior Member
Thread Starter
 
Join Date: Aug 2018
Location: North Carolina
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Thank

Youíre awesome. Iíve searched everywhere and didnít find any pictures. Thanks again.
tflash21 is online now  
Old 12-21-18, 05:28 PM
  #18  
Junior Member
 
Join Date: Dec 2018
Location: NorCal
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by tflash21 View Post
Youíre awesome. Iíve searched everywhere and didnít find any pictures. Thanks again.
No problem, glad I could help you out.
Good luck.
tckracker is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wilson94T
3rd Generation Specific (1993-2002)
5
09-15-11 09:00 AM
nicad2
3rd Generation Specific (1993-2002)
1
01-22-07 05:08 PM
rogo7
1st Generation Specific (1979-1985)
22
07-09-04 08:36 AM
charliegt
3rd Generation Specific (1993-2002)
13
06-14-03 04:30 AM
Kenteth
2nd Generation Specific (1986-1992)
0
05-19-03 01:57 PM


Thread Tools
Search this Thread
Quick Reply: Slow dim headlight


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: