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Mar 9, 2009 | 09:29 PM

#21

00Corvette

Melting Slicks

Joined: Sep 2006

Posts: 2,736

Likes: 7

From: Redding CA

NM, LOL.. I'll just try the glue and if it don't work, I'll take a deep breath and try the solder method...

Donnie

Mar 9, 2009 | 09:50 PM

#22

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

NO GLUE!!!!!!!!!!!!!!!!!!!!!!!

Glue is NON Conductive. That would most likely cause it to get WORSE!

Mar 9, 2009 | 10:48 PM

#23

dgrant3830

Tech Contributor

Joined: Dec 2006

Posts: 10,962

Likes: 29

From: Van Buren Arkansas

Wounded Warrior Escort '11

I tried soldering those contacts long ago when I still had my '99. It didn't work for me. Reading this thread today, I pulled out the old fobs and looked them over closely with a scope. They were and are still making the proper electrical connections and they were still bad.

Mar 9, 2009 | 11:14 PM

#24

doje

Race Director

Joined: Apr 2005

Posts: 11,138

Likes: 11

From: Fremont CA

St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20

NCM Sinkhole Donor

OK, someone who has successfully done this want to give me a price to do my old one for me?

Mar 10, 2009 | 12:01 AM

#25

00Corvette

Melting Slicks

Joined: Sep 2006

Posts: 2,736

Likes: 7

From: Redding CA

Bill,

Thanks for the heads up! I'll just see if I can get the tip of my iron on there...

DZ

Mar 10, 2009 | 12:05 AM

#26

KRISCO

Racer

Joined: May 2007

Posts: 332

Likes: 1

From: Spokane WA

nice post. Thanks

Mar 10, 2009 | 12:06 AM

#27

Silverbullet00

Race Director

Joined: Jan 2007

Posts: 18,643

Likes: 14

From: Norman Oklahoma - The Only State in the Union with no Blue Counties!

I have an advantage! Fasthotrod is close by! Oh Mark, another request for help!

Mar 15, 2009 | 08:51 AM

#28

Billy52

Intermediate

Joined: Jan 2005

Posts: 37

Likes: 0

From: Leesburg GA

Quote:

Originally Posted by dgrant3830

Several things are possible here.

(1) You may have what's known in the electronics world as a "cold" solder joint. It may appear to be good visually but the microcircuit lead may not have been cleaned properly before soldering, resulting in a solder connection that went bad over time.

(2) You microcircuit may be bad. Only fix would be to solder in a new microcircuit...

(3) You may have a "cold" solder joint somewhere else other than the six points indicated in the post above.

(4) Gremlins - Those things are almost impossible to find.

Good luck.

I have a FOB that exhibits this problem. I'm going to go check it now.

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Mar 15, 2009 | 11:49 AM

#29

theworm

2nd Gear

Joined: May 2005

Posts: 2

Likes: 0

Was about to buy a new fob and I saw this post. After sync, it would work for about 10 minutes and then stop--every time. Makes sense. With a magnafying glass, I could see the contacts broken. Was probably done during battery replacement. Has been working now for an hour. Thanks for the info.

Mar 17, 2009 | 12:31 PM

#30

Red3644

Instructor

Joined: Jan 2006

Posts: 240

Likes: 0

From: San Antonio TEXAS

This worked great! Fobs were always losing sync. I assumed bad batteries but that didn't work either. Checked the solder joints and they "looked" good but...a quick hit with the solder and gun and they're working well for 2 weeks now. Thanks.

Mar 17, 2009 | 03:42 PM

#31

Fasthotrod

Melting Slicks

Joined: Mar 2004

Posts: 2,149

Likes: 6

From: NCCO Oklahoma

Quote:

Originally Posted by Silverbullet00

I have an advantage! Fasthotrod is close by! Oh Mark, another request for help!

You got it, bud. Bring it to our next GTG and I'll take it home and solder it for you.

Mark

Mar 17, 2009 | 09:47 PM

#32

doje

Race Director

Joined: Apr 2005

Posts: 11,138

Likes: 11

From: Fremont CA

St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20

NCM Sinkhole Donor

Quote:

Originally Posted by doje

OK, someone who has successfully done this want to give me a price to do my old one for me?

Mar 18, 2009 | 12:43 AM

#33

tstar

Le Mans Master

Joined: May 2006

Posts: 5,987

Likes: 18

From: DuBois PA

St. Jude Donor '11-'12-'13-'14-'15

Quote:

Originally Posted by doje

PM me. I got a new soldering staton with a flow gun and want to try it out.

Mar 18, 2009 | 04:30 PM

#34

Jon B.

Burning Brakes

Joined: Aug 2006

Posts: 1,079

Likes: 35

I'm gonna try this tonight. I've got another question though, something on my circuit board sounds like it has something rolling around inside. Does the little silver cylinder have a ball in it?

Mar 18, 2009 | 04:47 PM

#35

Corvette Don

Le Mans Master

Joined: Jun 2006

Posts: 6,979

Likes: 31

From: Wichita KS

Man, wish I knew about this a few months ago, I threw out 2 2000 fobs due to them not working

, my current one works when it wants to so maybe I need to do this to mine

Mar 18, 2009 | 11:14 PM

#36

doje

Race Director

Joined: Apr 2005

Posts: 11,138

Likes: 11

From: Fremont CA

St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20

NCM Sinkhole Donor

Quote:

Originally Posted by Jon B.

I'm gonna try this tonight. I've got another question though, something on my circuit board sounds like it has something rolling around inside. Does the little silver cylinder have a ball in it?

Yup, that's for the passive entry feature. When the ball rolls around it sends out an unlock signal.

Mar 19, 2009 | 03:53 PM

#37

Jon B.

Burning Brakes

Joined: Aug 2006

Posts: 1,079

Likes: 35

Quote:

Originally Posted by doje

Yup, that's for the passive entry feature. When the ball rolls around it sends out an unlock signal.

Cool, learn something new every day.

Apr 9, 2009 | 09:06 AM

#38

poolboy

Burning Brakes

Joined: Sep 2007

Posts: 860

Likes: 3

So, for those of you that have done this, has it worked?

Apr 9, 2009 | 11:56 AM

#39

gpracer1

Le Mans Master

Joined: Feb 2006

Posts: 5,267

Likes: 40

From: Phoenix AZ

Sometimes you can fix it , sometimes the fob is just bad even after fixing it. I did the same to the 2000 I had a few years ago and it worked for a while, then the fob just died.

Apr 27, 2009 | 07:45 PM

#40

n5554t

Heel & Toe

Joined: Nov 2007

Posts: 15

Likes: 0

Thank You, Thank You, Thank You!

Quote:

Originally Posted by Fasthotrod

That would make sense... I just took mine apart and studied the circuit. It appears that one of the battery (+) legs goes up to the two legs on that chip, through the chip, then down to two pins on the main chip.

Maybe that is a memory feature of some kind? I think the FOB's have a rolling code, so maybe this is what keeps track of the codes as it rolls over?!?!

I just took my FOB down to the lab and hit those points with some solder. If it works, I'll report back.

Thanks for the tip.

Mark

Thank you, I have gone a few months without the FOB working....was going to replace the entire system UNTIL I read this. I repaired the broken "legs" and the FOB now works. Thank You, Thank You

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