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:

LMC5 Pull Key Error still occuring

Thread Tools
 
Search this Thread
 
Old Nov 11, 2025 | 01:13 PM
  #21  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,458
Likes: 1,165
From: Dyer, IN
Default

Originally Posted by DinoBob
Just no need. This is not the battery causing your issue. Do the brown wire mod. You’ll thank me.
Reply
Old Nov 11, 2025 | 01:42 PM
  #22  
MyNameIsTerry's Avatar
MyNameIsTerry
Thread Starter
Intermediate
All Eyes On Me
 
Joined: Nov 2022
Posts: 26
Likes: 2
Default

Originally Posted by DinoBob
Just no need. This is not the battery causing your issue. Do the brown wire mod. You’ll thank me.
Ok will give that a go and circle back. Thanks for the input.
Reply
Old Nov 11, 2025 | 05:36 PM
  #23  
Supercharged111's Avatar
Supercharged111
Safety Car
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2012
Posts: 3,956
Likes: 520
From: Da U.P.
Default

Another vote for the brown wire mod, mine needed that too.
Reply
Old Nov 11, 2025 | 06:29 PM
  #24  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,725
Likes: 4,564
From: Bugs Bunny should'a made a left turn here
Default

Originally Posted by MyNameIsTerry
I was thinking of swapping out with optima red top regardless. Thoughts?
Yes...get a yellow
Reply
Old Nov 12, 2025 | 07:12 AM
  #25  
VetteLooking's Avatar
VetteLooking
Pro
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jul 2002
Posts: 595
Likes: 90
From: Lisbon WI
Default

...and to beat the dead horse: brown wire mod.

Worked for me as well. I honestly dont know why it is not part of the base instructions. It does not seem to have any downside, so it makes sense to take the extra 5 minutes to do and to ensure the issue is avoided. I originally followed the instructions not to and had to go back into it later after getting the fuel cut a few times.
Reply
Old Nov 12, 2025 | 08:31 AM
  #26  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,458
Likes: 1,165
From: Dyer, IN
Default

Originally Posted by VetteLooking
I honestly dont know why it is not part of the base instructions.
It is! Post #13 shows the screenshot from the LMC5 instructions.
Reply
Old Nov 12, 2025 | 08:21 PM
  #27  
VetteLooking's Avatar
VetteLooking
Pro
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jul 2002
Posts: 595
Likes: 90
From: Lisbon WI
Default

Originally Posted by lucky131969
It is! Post #13 shows the screenshot from the LMC5 instructions.

I think you meant post #15, but that is my point. It has "Optional", "Only do this if you have issues after the install", and other indications you shouldn't need to do it as part of the base install. What it doesn't say why you shouldn't go ahead and do it right away to avoid rework.

It seems the need to do this mod is more common than the text would lead one to believe.

By "base" instructions, I meant to say that it should be part of the main instructions and not an optional step.
Reply
Old Nov 13, 2025 | 07:10 AM
  #28  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,458
Likes: 1,165
From: Dyer, IN
Default

Originally Posted by VetteLooking

By "base" instructions, I meant to say that it should be part of the main instructions and not an optional step.
Right, but all configurations are not the same....
Reply
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 13, 2026 | 09:22 AM
  #29  
MyNameIsTerry's Avatar
MyNameIsTerry
Thread Starter
Intermediate
All Eyes On Me
 
Joined: Nov 2022
Posts: 26
Likes: 2
Default

Following up after issue resolved. We tried doing the brown wire mod on the already installed module but that didnt work. The support team finally got back to us and suggested to redo the install with a new module and apply the brown wire mod at that time. That did fix the issue. Thanks all for the suggestions.
Reply
Old Apr 13, 2026 | 11:30 AM
  #30  
frodo84's Avatar
frodo84
Uneducated autodidact
Supporting Lifetime
25 Year Member
 
Joined: Feb 2001
Posts: 5,413
Likes: 252
From: West of the Sabine, Texas
Default

Originally Posted by MyNameIsTerry
Following up after issue resolved. We tried doing the brown wire mod on the already installed module but that didnt work. The support team finally got back to us and suggested to redo the install with a new module and apply the brown wire mod at that time. That did fix the issue. Thanks all for the suggestions.
Thank you for following up!
Reply
Old Apr 15, 2026 | 07:41 AM
  #31  
redzg's Avatar
redzg
Safety Car
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 3,771
Likes: 940
From: Orlando Florida
Default

Originally Posted by frodo84
Thank you for following up!
Agreed! Simply ludicrous how many threads simply stop with no conclusion. Possibly including one or two of my own…
Reply




All times are GMT -4. The time now is 06:55 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