Go Back   Corvette Forum > C5 Corvettes, 1997 - 2004 > C5 Tech
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C5 Tech
Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace Sponsored by
Karl Chevrolet

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 04-14-2011, 09:59 AM   #1
nvusgt
CF Senior Member
 
nvusgt's Avatar
 
Member Since: Jul 2009
Send a message via MSN to nvusgt
Default How-To repair EBCM avoiding costly repairs through ABSfixer or Fleabay

For 2001 and later C5's

This is my first write up for CorvetteForum and without this Forum I would not have been able to repair my own EBCM. Bear with me as I may have forgotten something or may not have been too clear in my explanation.

Please feel free to ask any questions.

First, if you don’t already know how, you’ll want to Pull Your Codes

Next, I will direct you to the Electrical Info Thread where you should try to take care of any issues you could have in the ground points. (Thanks to Bill Curlee for the thread)

Once the grounds have been cleaned and taken care of we’ll move on to the removal of the EBCM. I'm aware that step 7 says to send it to ABSfixer. Disregard that step and we'll proceed to the disassembly of the EBCM.

Items required:
Soldering Iron
Solder
De-Solder braid or pump
1 Phillips Screw Driver
Exacto Knife
Tube of Silicone Sealent

Now in order to remove the case I followed these steps:

1. remove 4 x screws
2. remove silicon from that hole on the back lower corner of the EBCM.
3. use a 2BA (or similar) 'thread tap' to cut a thread in that hole
4. screw matching thread screw/bolt into hole, (it misses pcb inside) until it touches cover plate (screw/bolt needs to be 3" long max).
5. carry on winding the screw in until it starts pushing the cover plate away enough to break that gasket seal and allow space to insert those flat blade screwdrivers and work around the remainder. (Thank You JerseyC5)

But if you’re like me you won’t have a tap to make a nice threaded hole. I was lucky and found a screw long enough and small enough to be threaded by hand. This is used to apply enough pressure so the back would separate. Refer to the image and said screw I used:

Click the image to open in full size.

Once the EBCM is taken apart it will look this (Once again Thank You Bill Curlee):

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.


Click the image to open in full size.

Click the image to open in full size.


Click the image to open in full size.

You may need some good lighting and possibly a magnifying glass to inspect the solder points of 5posts.

Click the image to open in full size.

This most likely, as with so many others on the Forum causing the C1214 code. You need to get a soldering iron and some solder to re-solder any point that looks questionable. Once done you will want to test the EBCM, so put the box back together WITHOUT sealant and temp install the EBCM in your C5. Clear any codes before starting your car and you should be ok to start her up and check for any DIC messages.

If you have no messages then you've successfully repaired your own EBCM. Remove the EBCM apply some silicone and put the box back together completely. Install the EBCM using the steps here in reverse.


For replacing relay
If you suspect or may want to buy a new relay as a “just in case,” you’ll need to go here and place an order for a new relay (Thanks to forum member jrhott: The relay PB380-ND HAS BEEN SUPERCEDED BY PB1321-ND. Link is current with this info). You’ll also need to remove the silicone that’s surrounding the relay like so

Click the image to open in full size.

Click the image to open in full size.

Be very careful to not cut anything around the relay or the Circuit Board. Once the silicone is removed de-solder the points and cut a small amount off of each post in order to lower the relay and slide it out.

Take the new relay and just like the relay you removed, you may have to cut some material off each post to get it to fit. Install the relay, solder the points and refer to the instructions for install above.

Hopefully this makes enough sense for you guys to follow. Again if you have any questions feel free to ask.

Thanks to everyone who helped me and to the members who had previous info on this stupid C1214 code.

nvusgt

Last edited by nvusgt; 07-17-2013 at 02:48 AM.
nvusgt is offline   Reply With Quote
Old 04-14-2011, 11:33 AM   #2
GoBallsDeep!
CF Senior Member
 
GoBallsDeep!'s Avatar
 
Member Since: Nov 2008
Location: Clearwater Florida
Default

marked!
GoBallsDeep! is offline   Reply With Quote
Old 04-14-2011, 04:59 PM   #3
Bill Curlee
Tech Contributor
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Support Corvetteforum!
 
Bill Curlee's Avatar
 
Member Since: Jun 2001
Location: Gales Ferry CT
Default

EXCELLENT POST and guidance! This will save a LOT of people a LOT of CASH. REMEMBER! When you reinstall the EBTCM for the last time after your test,,, MAKE SURE that the black seal that lays against the BPMV is 100% intact and air tight. Numerous people have not had a good seal and the module will fill full of water and BURN UP!

Seal up the small hole for the SCREW!!!!

That guy took some great EBTCM pictures!

Bill Curlee

Last edited by Bill Curlee; 04-15-2011 at 07:32 PM.
Bill Curlee is offline   Reply With Quote
Old 04-14-2011, 11:54 PM   #4
SCM_Crash
UIX Engineer to the Max!
Support Corvetteforum!
 
SCM_Crash's Avatar
 
Member Since: Jul 2009
Location: Los Angeles California
Default

Fantastic. Looks like this is what I'm doing on the weekend.


Thanks!
SCM_Crash is offline   Reply With Quote
Old 04-15-2011, 02:23 AM   #5
99MALLETT396
CF Senior Member
 
99MALLETT396's Avatar
 
Member Since: Jun 2005
Location: Qatif
Default

I have a no communication message on my dic, is mine reparable with these steps?
__________________
2004 Yellow Z06 1st TTiX Car in the Midle East

TTiX, 382ci, Alky.
99MALLETT396 is offline   Reply With Quote
Old 04-15-2011, 05:20 AM   #6
dougbfresh
CF Senior Member
 
Member Since: Nov 2005
Default

Quote:
Originally Posted by 99MALLETT396 View Post
I have a no communication message on my dic, is mine reparable with these steps?
Think you have other issues, try reseating the cable going to it first. Inspect the pins/wires while you have it loose.
dougbfresh is offline   Reply With Quote
Old 04-15-2011, 05:44 AM   #7
Choreo
CF Senior Member
Support Corvetteforum!
 
Choreo's Avatar
 
Member Since: May 2006
Location: Midland TX
Default

Great info!
Choreo is offline   Reply With Quote
Old 04-15-2011, 07:50 AM   #8
nvusgt
CF Senior Member
 
nvusgt's Avatar
 
Member Since: Jul 2009
Send a message via MSN to nvusgt
Default

Quote:
Originally Posted by 99MALLETT396 View Post
I have a no communication message on my dic, is mine reparable with these steps?
I agree with the other member. Mine had this only because I forgot to plug in the cable to the EBCM, when I plugged it in the message was gone. Perhaps you should try to reseat or maybe take it out clean it up, and inspect the cable that plugs into it.

I'm sorry if this doesn't help, I know how much of a pain it can be.
nvusgt is offline   Reply With Quote
Old 04-15-2011, 09:23 AM   #9
lucky131969
Tech Contributor
 
lucky131969's Avatar
 
Member Since: Jan 2007
Location: Hoffman Estates IL
Send a message via Yahoo to lucky131969
Default

Welll done. A classic case of insufficient solder/cold solder joints.
lucky131969 is offline   Reply With Quote
Old 04-15-2011, 09:29 AM   #10
madmailman96
CF Senior Member
 
madmailman96's Avatar
 
Member Since: Apr 2010
Location: Indianapolis Indiana
Default

is this safe to do for someone that has very little mechanical experience? Im thinking of ordering the part and doing it, just want to make sure i wont screw up the entire thing.
madmailman96 is offline   Reply With Quote
Old 04-15-2011, 09:33 AM   #11
lucky131969
Tech Contributor
 
lucky131969's Avatar
 
Member Since: Jan 2007
Location: Hoffman Estates IL
Send a message via Yahoo to lucky131969
Default

Quote:
Originally Posted by madmailman96 View Post
is this safe to do for someone that has very little mechanical experience? Im thinking of ordering the part and doing it, just want to make sure i wont screw up the entire thing.
No offense, but based on the information (and pictures) presented in this thread, if you have to ask that question......you had probably get someone to help you.
lucky131969 is offline   Reply With Quote
Old 04-15-2011, 09:38 AM   #12
madmailman96
CF Senior Member
 
madmailman96's Avatar
 
Member Since: Apr 2010
Location: Indianapolis Indiana
Default

Quote:
Originally Posted by lucky131969 View Post
No offense, but based on the information (and pictures) presented in this thread, if you have to ask that question......you had probably get someone to help you.
None taken, the car is with mike norris right now, he is pulling the EBCM for me, so i can either ask him if he feels capable, or i my step dad has worked on cars all his life, so i can let him give it a shot.
madmailman96 is offline   Reply With Quote
Old 04-15-2011, 09:42 AM   #13
rebelheart
CF Senior Member
 
rebelheart's Avatar
 
Member Since: May 2008
Location: Lacombe Louisiana
Default

This is a great post!
rebelheart is offline   Reply With Quote
Old 04-15-2011, 12:09 PM   #14
nvusgt
CF Senior Member
 
nvusgt's Avatar
 
Member Since: Jul 2009
Send a message via MSN to nvusgt
Default

Quote:
Originally Posted by madmailman96 View Post
is this safe to do for someone that has very little mechanical experience? Im thinking of ordering the part and doing it, just want to make sure i wont screw up the entire thing.
You only need to order a new relay if after having re-soldered the points and it's still throwing codes and dic messages. And I agree with Lucky, you may want your friends/family take this one for ya. Again though to be clear, have who ever is doing this look at the solder points. Re-solder and temp install for a test. It should be good to go though.
nvusgt is offline   Reply With Quote
Old 04-15-2011, 03:30 PM   #15
rboineau
CF Senior Member
 
Member Since: Apr 2008
Location: Columbia SC
Default

Lou, great write-up and pictures. Many people will be grateful to you.

I guess you're at Shaw. I'm in Columbia, ride my bicycle past McEntire all the time, have a good friend who used to fly F-16s out of there.
rboineau is offline   Reply With Quote
Old 04-16-2011, 12:42 AM   #16
Dave68
CF Senior Member
 
Dave68's Avatar
 
Member Since: Dec 2000
Location: San Diego CA
Default Good job

Excellent pics and writeup! For a few more details regarding removal of the unit, see:

http://www.conceptualpolymer.com/Ele...l%20Module.pdf

I sent my unit off to ABS Fixer but your fix looks like it'll work for most folks. It appears that soldering issues plague not only this but also the HVAC board and the HUD board. The clue for the last two is a fading display as the ambient temperature rises. My HUD is doing this, currently.
__________________


2001 Mag-Red Coupe 6-Speed, 1SC, Z51, Born: May 17, 2001, delivered June 7th, 2001
315.9 RWHP 337.7 RWTQ (Dynojet) 6/8/02 (no mods)
328.8 RWHP 352.2 RWTQ (Dynojet) 5/22/04 with Halltech Stinger intake and CAI mod
Quad Round Borla Stingers 9/6/03
2002 Z06 airbox, 2013
Cold-air scoop mod 5/20/04
TPS Z06 shifter (replaced BPP on 12/26/11)
Intake install, oil trap, and CAI mod: http://www.conceptualpolymer.com/corvette_c5_corner.htm
Dave68 is offline   Reply With Quote
Old 04-16-2011, 10:51 AM   #17
nvusgt
CF Senior Member
 
nvusgt's Avatar
 
Member Since: Jul 2009
Send a message via MSN to nvusgt
Default

Thanks rboineau and Dave. It's funny you put that link about the EBCM removal, that's the same link I used for said removal. I tell people to ignore step 7 which is to send it to ABSfixer.

Also nice addition regarding HUD and HVAC issues. I've read a few posts about people's HUD, they might be able to fix it themselves now...if they're feeling froggy that is.
nvusgt is offline   Reply With Quote
Old 04-16-2011, 12:43 PM   #18
Bill Curlee
Tech Contributor
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Support Corvetteforum!
 
Bill Curlee's Avatar
 
Member Since: Jun 2001
Location: Gales Ferry CT
Default

Heres a picture of an unmolested EBTCM with the hole for the screw to seperate the electronics from the housing.

Click the image to open in full size.7

Click the image to open in full size.

Last edited by Bill Curlee; 04-16-2011 at 12:50 PM.
Bill Curlee is offline   Reply With Quote
Old 04-22-2011, 10:22 PM   #19
Razorback58
CF Senior Member
 
Razorback58's Avatar
 
Member Since: Apr 2008
Location: Texarkana AR
Default

Nice!
Razorback58 is offline   Reply With Quote
Old 04-23-2011, 06:02 AM   #20
SCM_Crash
UIX Engineer to the Max!
Support Corvetteforum!
 
SCM_Crash's Avatar
 
Member Since: Jul 2009
Location: Los Angeles California
Default

Doing this today when I wake up.
SCM_Crash is offline   Reply With Quote
Old 04-23-2011, 06:02 AM
 
Go Back   Corvette Forum > C5 Corvettes, 1997 - 2004 > C5 Tech
Reload this Page How-To repair EBCM avoiding costly repairs through ABSfixer or Fleabay
 
 
 
Reply

Tags
99, absfixer, avoiding, c5, corvette, ebcm, ecbm, effects, ground, howto, install, labor, pin, relay, removing, repair


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
IMPORTANT ELECTRICAL INFORMATION (Long!) Bill Curlee C5 Tech 1667 08-18-2014 08:11 PM
C5 Ignition Switch Repair Bill Curlee C5 Tech 285 07-26-2014 10:31 PM
Leak Checks Bill Curlee C5 Tech 263 11-27-2013 09:53 AM
Got a new Stubby Antenna and it's sweet nvusgt C5 Z06 Discussion 30 07-15-2013 09:36 PM
Some photo's you might not have seen nvusgt C7 General Discussion 0 01-13-2013 11:55 PM


All times are GMT -4. The time now is 02:53 AM.


Emails & Password Backup

Search Engine Friendly URLs by vBSEO 3.5.2