Wiring, Stereo & Electronics Audio Components | Radars | Alarms - and things that spark when they shouldn't

troubleshooting keyless entry

Thread Tools
 
Search this Thread
 
Old Mar 17, 2006 | 11:34 AM
  #1  
GrahamHill's Avatar
Thread Starter
TECH Resident
20 Year Member
Photogenic
iTrader: (6)
 
Joined: Nov 2004
Posts: 821
Likes: 0
From: northeast Miss.
Default troubleshooting keyless entry

I have tried a new battery in my remote (it was getting weak) and now I cant get it to program. They say the battery is good and all the contact points seem to be hitting fine. I bough another remote today from a local salvage yard and it wont program either?

Where can I start troubleshooting?

Im cycling the key 3 times to make the door locks/hatch cycle, then holding lock/unlock for a minute but nothing ever happens.
Reply
Old Mar 17, 2006 | 12:55 PM
  #2  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Dunno...did you remember to remove the radio fuse?
Reply
Old Mar 19, 2006 | 12:19 AM
  #3  
GrahamHill's Avatar
Thread Starter
TECH Resident
20 Year Member
Photogenic
iTrader: (6)
 
Joined: Nov 2004
Posts: 821
Likes: 0
From: northeast Miss.
Default

Yep. The locks cycled like they are supposed to after I cycled the key 3 times.

What picks up the signal from the remote??
Reply
Old Mar 20, 2006 | 09:49 PM
  #4  
GrahamHill's Avatar
Thread Starter
TECH Resident
20 Year Member
Photogenic
iTrader: (6)
 
Joined: Nov 2004
Posts: 821
Likes: 0
From: northeast Miss.
Default

Any more idears, guys/girls?
Reply
Old Mar 20, 2006 | 09:53 PM
  #5  
01RedT/A's Avatar
TECH Apprentice
 
Joined: Dec 2005
Posts: 314
Likes: 0
Default

if you have another chevy, see if you can program the remotes to the other, just to be certain it is your car with the problem. im not sure how the reciever works for the remote, but it sounds like the bcm (body control module) is working since the locks cycle.
Reply
Old Mar 21, 2006 | 10:37 AM
  #6  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Just a guess...make sure the alarm shock sensor is connected...may have something to do with it...????
Reply
Old Mar 21, 2006 | 11:00 AM
  #7  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Found this in my helms under Transmitter Synchronization:

Resync may be necessary due to the security method used by the remote keyless entry system...under the following conditions...
Battery in transmitter very weak
Battery in transmitter has been replaced
In order to resynchronize the transmitter with the BCM, stand within 5 feet of the vehicle...simultaneously press and hold the lock and unlock button on the transmitter for 7 seconds...the door locks should cycle and the park lamps should flash in order to confirm resynchronization.

Worth a try...
Reply
Old Mar 21, 2006 | 02:54 PM
  #8  
GrahamHill's Avatar
Thread Starter
TECH Resident
20 Year Member
Photogenic
iTrader: (6)
 
Joined: Nov 2004
Posts: 821
Likes: 0
From: northeast Miss.
Default

That sensor has had one or 2 of its wires tapped for something before. Maybe they were spliced too deep and cut the power. I'll check that later and see if thats it.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Mar 21, 2006 | 03:12 PM
  #9  
2001NBMZ28's Avatar
TECH Senior Member
 
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Default

Hope you find it - FWIW it's my understanding that if the remotes are working fine, then the shock sensor is disconnected cause it went bad, the rest of the system still functions normally.
Reply




All times are GMT -5. The time now is 05:07 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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