Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

key switch not powering starter problem

Thread Tools
 
Search this Thread
 
Old Sep 7, 2014 | 09:26 PM
  #1  
19slampala61's Avatar
Thread Starter
Registered User
 
Joined: Sep 2014
Posts: 5
Likes: 0
Default key switch not powering starter problem

Bought a wrecked 2000 camaro with ls1 and swapping every thing I can into a 1956 GMC truck. Hooked up the factory harness to go about starting the engine and although it has power it will not crank..I'm also using the column out of the camaro. The body control module makes like a click - beeping sound and the seat belt light in the cluster flashes when I turn the key . Fuel pump runs and I can jump across the starter to turn the motor over. Is there some kind of security device limiting the power to the gauges and from the key switch?
Reply
Old Sep 8, 2014 | 06:13 AM
  #2  
lsxRanger94's Avatar
12 Second Club
 
Joined: Jan 2014
Posts: 565
Likes: 0
From: 217
Default

And do you have the neutral safety switch hooked up? Is VATS removed from your pcm?
Is your Key matching the bcm?

The key chip will send a signal to the bcm saying its a match and will provide signal to starter relay providing vehicle is in park/neutral or clutch is pushed in.
Reply
Old Sep 8, 2014 | 06:16 AM
  #3  
lsxRanger94's Avatar
12 Second Club
 
Joined: Jan 2014
Posts: 565
Likes: 0
From: 217
Default

If you replaced the ignition cylinder because of missing keys, you will need a Tech 2 to program key to BCM. Either dealership(good luck) or a shop that has one.
Reply
Old Sep 8, 2014 | 05:14 PM
  #4  
19slampala61's Avatar
Thread Starter
Registered User
 
Joined: Sep 2014
Posts: 5
Likes: 0
Default

It's a t56 swap and I have the pedal hitting the switch for clutch. Have the original keys that came with the car so everything is factory. Done nothing to pcm yet. When the key is in run position the security light in cluster is not on but the body control module is beeping and the seat belt light in cluster flashes rapidly....
Reply
Old Sep 8, 2014 | 05:26 PM
  #5  
lsxRanger94's Avatar
12 Second Club
 
Joined: Jan 2014
Posts: 565
Likes: 0
From: 217
Default

take a look at this

https://ls1tech.com/forums/pcm-diagn...m-beeping.html
Reply
Old Sep 8, 2014 | 06:29 PM
  #6  
19slampala61's Avatar
Thread Starter
Registered User
 
Joined: Sep 2014
Posts: 5
Likes: 0
Default

Never had the alternator off but I'll check that out thanks.
Reply
Old Sep 8, 2014 | 07:43 PM
  #7  
lsxRanger94's Avatar
12 Second Club
 
Joined: Jan 2014
Posts: 565
Likes: 0
From: 217
Default

I think it's more about a ground issue than anything.
Reply
Old Sep 8, 2014 | 08:56 PM
  #8  
19slampala61's Avatar
Thread Starter
Registered User
 
Joined: Sep 2014
Posts: 5
Likes: 0
Default

Yes going to check all the grounds tomorrow, mine still a little different in it does not make noise till I turn the key
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Sep 9, 2014 | 08:54 PM
  #9  
19slampala61's Avatar
Thread Starter
Registered User
 
Joined: Sep 2014
Posts: 5
Likes: 0
Default

Found a ground i missed on wires inside the cab. now the cluster shows the mileage, and all the lights for the abs and what not that arent hooked up.The bcm is silent and no flashing lights. turn the key and nothing, but the word SECURITY starts blinking. got the resistor and soldered them in for the bypass but yet again still nothing.....

i tried to start it by jumping the starter and it fires but will not stay running so guessing its not getting a signal to fuel pump either.

Any suggestions on what else to check.
Reply




All times are GMT -5. The time now is 11:26 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE