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:

Micro relay orientation

   
Old Jan 25, 2022 | 01:18 AM
Share
  #1  
vettefx76's Avatar
vettefx76
Thread Starter
Pro
10 Year Member
 
Joined: Apr 2014
Posts: 722
Likes: 55
From: IL
Default Micro relay orientation
Doe it matter which way the micro relays in the fuse box under the hood and in the passenger area go in? Seems like they plug in either way...
Reply
0
Old Jan 25, 2022 | 02:31 AM
Share
  #2  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,626
Likes: 4,070
From: Cape Coral, Florida
Default
They will work either way !!
Reply
1
Old Jan 25, 2022 | 11:53 PM
Share
  #3  
MrMcE's Avatar
MrMcE
Le Mans Master
 
Joined: Sep 2021
Posts: 8,342
Likes: 489
From: WI
Default
Relays or fuses?
Reply
0
Old Jan 26, 2022 | 12:17 AM
Share
  #4  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,626
Likes: 4,070
From: Cape Coral, Florida
Default
Originally Posted by MrMcE
Relays or fuses?

Both !!…take your horn relay and spin it around..test it and it will work !!
Reply
1
Old Jan 26, 2022 | 12:30 AM
Share
  #5  
MrMcE's Avatar
MrMcE
Le Mans Master
 
Joined: Sep 2021
Posts: 8,342
Likes: 489
From: WI
Default
Originally Posted by C5 Diag
Both !!…take your horn relay and spin it around..test it and it will work !!
Existential crisis averted, makes sense with the diagram. 85/86 are the signal pins (polarity insensitive coil), they are diagonally opposite so turning it around just switches their position with each other.


Reply
2
Old Jan 26, 2022 | 12:34 AM
Share
  #6  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,626
Likes: 4,070
From: Cape Coral, Florida
Default
Originally Posted by MrMcE
Existential crisis averted, makes sense with the diagram. 85/86 are the signal pins (polarity insensitive coil), they are diagonally opposite so turning it around just switches their position with each other.

Exactly !!…we call 85 and 86 the “control” side and 87 and 30 the “load side of the relay.
Reply
0
Old Jan 26, 2022 | 12:55 AM
Share
  #7  
vettefx76's Avatar
vettefx76
Thread Starter
Pro
10 Year Member
 
Joined: Apr 2014
Posts: 722
Likes: 55
From: IL
Default
Thanks for clearing that up It was driving me nuts cos I would look up C5 fuse boxes on google and some would appear upside down lol
Reply
1
Old Apr 6, 2024 | 05:50 AM
Share
  #8  
TCFS's Avatar
TCFS
Burning Brakes
Photogenic
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 1,023
Likes: 776
From: Göteborg, Sweden, Europe
2025 C5 of the Year Finalist - Unmodified
2021 C5 of the Year Finalist - Unmodified
2020 C5 of the Year Finalist - Unmodified
Default
What is the chance of such relay going bad? What is the spec or reference?
thanks!
TCFS
Reply
0
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 6, 2024 | 07:06 AM
Share
  #9  
vettefx76's Avatar
vettefx76
Thread Starter
Pro
10 Year Member
 
Joined: Apr 2014
Posts: 722
Likes: 55
From: IL
Default
Originally Posted by TCFS
What is the chance of such relay going bad? What is the spec or reference?
thanks!
TCFS
I have never had any go bad on on buth C5s I've owned so far. In any car, climate and weather (humidity) is what can do it besides electrical overload.
Reply
0
Old Apr 6, 2024 | 07:27 AM
Share
  #10  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
Default
Originally Posted by vettefx76
........In any car, climate and weather (humidity) is what can do it besides electrical overload.
Not so much. That particular relay is designed to operate up to 95%RH, with a temperature range of -40 to 250 degrees F. The relays of this type I have seen fail early in their life were do to poor manufacturing practices. Years down the road is just electrical/mechanical fatigue.
Reply
0
Old Apr 6, 2024 | 10:56 AM
Share
  #11  
TCFS's Avatar
TCFS
Burning Brakes
Photogenic
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 1,023
Likes: 776
From: Göteborg, Sweden, Europe
2025 C5 of the Year Finalist - Unmodified
2021 C5 of the Year Finalist - Unmodified
2020 C5 of the Year Finalist - Unmodified
Default
Is it something which can be opened, exercised, cleaned…or should just be just replaced?
Reply
0
Old Apr 6, 2024 | 11:05 AM
Share
  #12  
Dads2kconvertible's Avatar
Dads2kconvertible
Melting Slicks
 
Joined: Sep 2021
Posts: 2,555
Likes: 1,213
Default
Originally Posted by TCFS
Is it something which can be opened, exercised, cleaned…or should just be just replaced?
You could possibly open and clean it but it's wildly impractical. If you have access to a replacement that's the way to go.
Reply
0
Old Apr 6, 2024 | 05:41 PM
Share
  #13  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
Default
Originally Posted by TCFS
Is it something which can be opened, exercised, cleaned…or should just be just replaced?
Such a cheap part......just replace it.
Reply
0
Old Apr 7, 2024 | 03:14 AM
Share
  #14  
TCFS's Avatar
TCFS
Burning Brakes
Photogenic
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 1,023
Likes: 776
From: Göteborg, Sweden, Europe
2025 C5 of the Year Finalist - Unmodified
2021 C5 of the Year Finalist - Unmodified
2020 C5 of the Year Finalist - Unmodified
Default
Agree it is cheap, in US…they are not readily available in Europe unfortunately… I bought a handful from Rockauto and have them sent to a friend in US who will visit later.
thanks!
TCFS
Last edited by TCFS; Apr 7, 2024 at 03:21 AM.
Reply
1

Get notified of new replies

To Micro relay orientation

Back to Subforum
C5 Tech
View Next Unread
Is this the normal marbles in a can or something more?


Thread Tools
Search this Thread
Search this Thread:

Click for Advanced Search

Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 08:22 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE