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Need ECBM (Electrronic body control module) 2000 Corvette ...And rough ride

lilbull624

Active member
Joined
May 18, 2009
Messages
43
Location
Toms River, NJ
Corvette
2000
I need a ECBM (Electrronic body control module) for a 2000 Corvette They say they don't make them anymore where could I find one .Also after having 1600 bucks wort of work on the tie rods and wheel bearing Im riding home and hit the breaks hard to miss some deer will now the ride went from smooth to very rough and bumpy what could this be ?

Thanks Derek
 
What is the reason you think you need a replacement EBCM?

If your ride is rough it may be a shock issue. I doubt you flat spotted a tire but you can check if the ABS was not working.
 
What is the reason you think you need a replacement EBCM?

If your ride is rough it may be a shock issue. I doubt you flat spotted a tire but you can check if the ABS was not working.


Thanks for Reply

Well I bought the car brand new back in 2000 they told me in 05 the right rear ABS was broke and itr was 900 to fix I personally did not like the ABS anyway so never did it and that light for ABS alaeways came on when starting the car just hit the reset and that made it go off . Now recently the service vehicle as well coming on They ran codes said it was the rear defrogger which i suspected but don't drive much in the winter . Now I just had all this work done 4 tie rods and a right rear wheel bearing and hub the mechanic said that should also take care of them warning lights coming on then he called he said they came back on the service vehicle, ABS, and traction light come on when first starting car so he claims that is cause of the EBCM

I was suspicious it needed all them things but then after p[icking it up it rode pretty good and smooth then the very next day 6 deer jump out in front I hit the breaks kinda hard and right away the car feels rough like bumpy ride I was thinking shocks but could shocks go just cause you hit the brakes hard ?
 
Ok when I folowed that video and hit manual two codes came up
10 PCM P1571H
P1689

However before the manual there are a bunch of codes I guess it runs through the whole system these codes are harde to get as they do not stay up before I could jot them down it would go to the next code I get redoing it from the beginning and I would get a code then have to redo it from begining and get another code as they go to fast I didn't do all of them I didnt know if you neded all them or just the manual codes but here are the ones I was able to get if you ned more I can get the rest most are here though

28 TCS C1226
C1233
C1243
40BCM P0432
B2583



I need you to pull the DIC codes and post them with H or C. I need to know under what module each one shows up.


https://www.youtube.com/watch?v=SviRjIsy9G4&list=PL7AcRmt53xvQVwDAGikaqYGw6ZivWB-2K


Hard stop could have done it with old shocks. Can you press down on the fenders and release and tell if they seem to be performing correctly. If not, one(s) could be hard to press down with little bounce back.
 
Ok just fooling around I figured out how to hold it there are alot of codes
Here they are


10 PCM
P1571H
P1689H

28 TCS
C1226H
C1233H
C1243H

40 BCM
B0432H
B2578H
B2583H

58 SDM
U1040H

AO-LDCM
B2252H
B2282H
B2284H
B2262H
B2264H

U1255H
U1064H
U1016H
U1096H

AI-RDCM
B2283H
B2285H
B2263H
B2265H

U1255H
U1064H
U1016H
U1096H

BO-RFA
U1255H
U1096H
U1064H
U1016H

C2100HC
C2105H
C2115HC


Alot of codes is this right ?





Ok when I folowed that video and hit manual two codes came up
10 PCM P1571H
P1689

However before the manual there are a bunch of codes I guess it runs through the whole system these codes are harde to get as they do not stay up before I could jot them down it would go to the next code I get redoing it from the beginning and I would get a code then have to redo it from begining and get another code as they go to fast I didn't do all of them I didnt know if you neded all them or just the manual codes but here are the ones I was able to get if you ned more I can get the rest most are here though

28 TCS C1226
C1233
C1243
40BCM P0432
B2583
 
Thanks for the reply
Think I put reply in wrong spot anyway here it is again I now understand the video better
here are the codes

10 PCM
P1571H
P1689H

28 TCS
C1226H
C1233H
C1243H

40 BCM
B0432H
B2578H
B2583H

58 SDM
U1040H

AO-LDCM
B2252H
B2282H
B2284H
B2262H
B2264H

U1255H
U1064H
U1016H
U1096H

AI-RDCM
B2283H
B2285H
B2263H
B2265H

U1255H
U1064H
U1016H
U1096H

BO-RFA
U1255H
U1096H
U1064H
U1016H

C2100HC
C2105H
C2115HC

Thanks for your patience

I need you to pull the DIC codes and post them with H or C. I need to know under what module each one shows up.


https://www.youtube.com/watch?v=SviRjIsy9G4&list=PL7AcRmt53xvQVwDAGikaqYGw6ZivWB-2K


Hard stop could have done it with old shocks. Can you press down on the fenders and release and tell if they seem to be performing correctly. If not, one(s) could be hard to press down with little bounce back.
 
Great, most should go away once you do the following:

I now want you to delete/clear/reset ALL of the codes. Go for a drive and then pull the codes BEFORE you turn the engine off. Here is some more info on pulling codes.


READING YOUR C5 Engine Diagnostic Trouble Codes (DTC)

This procedure should be carried out any time you experience a problem with your C5. Most inexpensive store bought aftermarket code readers will ONLY read power train DTC’s. Reading the DTC’s with the C5 built in code reader will allow you to read ALL the modules in the vehicle.

The Diagnostic Display Mode is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the RESET button to turn off any warning messages. (i.e. door open, trunk open ect)
3) Press and hold the OPTIONS button
4) While holding OPTIONS, press FUEL button four times within a 10 -second period.

Initially, the on-board diagnostics go into an Automatic Mode which will cycle through each module and shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each module. ( i.e. PCM = 4 codes) If none are present in a given module, you will see No More Codes on the display.

There are two types of diagnostic codes, Current and History designated with a letter suffix, “C” or “H”. A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes. More likely it's an indication of an intermittent malfunction.

Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a Scan Tester is necessary to properly diagnose the malfunction.

Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except E/M. Once the display shows Manual Diagnostics, select a module by pressing the OPTIONS button to go forward or the TRIP button to go back. Once a module is selected, a code is displayed, and if more than one are present; press GAGES to go forward or FUEL to go back.
To exit the diagnostic mode at any time, press E/M. If you want to erase codes in a given module, press RESET To reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. Repeat the steps until you have reset the codes in all the computer modules.
NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory. If you clear the code/s, and extinguish the Check Engine Light, your emissions status ready will NOT allow you to pass an emissions test until you have completed the required driving cycles. There are a few body module DTC’s that if set will prevent the module from operating properly. Once the DTC is cleared, the module will return to full function. This is not true for power train DTCs.

If you have never read and cleared your codes, there will probably be a lot of old history DTCs. It is recommended that you clear your codes and see if any come back during a driving cycle. Those are the ones that you need to concentrate on diagnosing.

Once you have the codes, the next question is: What to do with the information?
First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. The Service Manual is really a requirement if you want to understand and work on your C5.

NOTE and a WARNING. You can read the DTCs while the engine is running. I pull mine up all the time while driving.
WARNING. Don’t become distracted while reading DTCs while your driving and cause an accident!!!!! Use common sense and drive safe.

These are some very good C5 Diagnostic Trouble Code (DTC) explanation web sites!!! They also explain how to read the DTCs

Here are some very good sites that explain what DTC mean:

http://www.gearchatter.com/viewtopic11755.php

http://www.obd-codes.com/trouble_cod...d-ii-codes.php

Make sure to include the H or C suffix when you post your DTCs!!

NOTE!!! Start the car and let it idle. Then take it for a drive and cause the problem to occur. When you return home pull the codes BEFORE you shut off the engine.


Do NOT discount the codes with the H following them. They can provide an audit trail for issues going on with the car. They ARE important in diagnosing problems.

Post ALL the codes that you pull with the engine running..........

Some codes go away WITHOUT setting an H code when you shut the engine off. I suspect you will have several codes that will show C or HC that do NOT show when the engine is turned off.
 
Ok followed your instructions cleared the codes took it for a short drive only couple miles then repulled codes only 2 codes came up

28 TCS
C1243H

BO-RFA
U1096H








Great, most should go away once you do the following:

I now want you to delete/clear/reset ALL of the codes. Go for a drive and then pull the codes BEFORE you turn the engine off. Here is some more info on pulling codes.


READING YOUR C5 Engine Diagnostic Trouble Codes (DTC)

This procedure should be carried out any time you experience a problem with your C5. Most inexpensive store bought aftermarket code readers will ONLY read power train DTC’s. Reading the DTC’s with the C5 built in code reader will allow you to read ALL the modules in the vehicle.

The Diagnostic Display Mode is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the RESET button to turn off any warning messages. (i.e. door open, trunk open ect)
3) Press and hold the OPTIONS button
4) While holding OPTIONS, press FUEL button four times within a 10 -second period.

Initially, the on-board diagnostics go into an Automatic Mode which will cycle through each module and shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each module. ( i.e. PCM = 4 codes) If none are present in a given module, you will see No More Codes on the display.

There are two types of diagnostic codes, Current and History designated with a letter suffix, “C” or “H”. A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes. More likely it's an indication of an intermittent malfunction.

Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a Scan Tester is necessary to properly diagnose the malfunction.

Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except E/M. Once the display shows Manual Diagnostics, select a module by pressing the OPTIONS button to go forward or the TRIP button to go back. Once a module is selected, a code is displayed, and if more than one are present; press GAGES to go forward or FUEL to go back.
To exit the diagnostic mode at any time, press E/M. If you want to erase codes in a given module, press RESET To reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. Repeat the steps until you have reset the codes in all the computer modules.
NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory. If you clear the code/s, and extinguish the Check Engine Light, your emissions status ready will NOT allow you to pass an emissions test until you have completed the required driving cycles. There are a few body module DTC’s that if set will prevent the module from operating properly. Once the DTC is cleared, the module will return to full function. This is not true for power train DTCs.

If you have never read and cleared your codes, there will probably be a lot of old history DTCs. It is recommended that you clear your codes and see if any come back during a driving cycle. Those are the ones that you need to concentrate on diagnosing.

Once you have the codes, the next question is: What to do with the information?
First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. The Service Manual is really a requirement if you want to understand and work on your C5.

NOTE and a WARNING. You can read the DTCs while the engine is running. I pull mine up all the time while driving.
WARNING. Don’t become distracted while reading DTCs while your driving and cause an accident!!!!! Use common sense and drive safe.

These are some very good C5 Diagnostic Trouble Code (DTC) explanation web sites!!! They also explain how to read the DTCs

Here are some very good sites that explain what DTC mean:

http://www.gearchatter.com/viewtopic11755.php

http://www.obd-codes.com/trouble_cod...d-ii-codes.php

Make sure to include the H or C suffix when you post your DTCs!!

NOTE!!! Start the car and let it idle. Then take it for a drive and cause the problem to occur. When you return home pull the codes BEFORE you shut off the engine.


Do NOT discount the codes with the H following them. They can provide an audit trail for issues going on with the car. They ARE important in diagnosing problems.

Post ALL the codes that you pull with the engine running..........

Some codes go away WITHOUT setting an H code when you shut the engine off. I suspect you will have several codes that will show C or HC that do NOT show when the engine is turned off.
 
C1243 is a stalled EBCM Pump. Did you have any indication the ABS/AH/TC or any part went active during the drive? Message displayed or feel anything.

RPO code is a communication loss. We an attach that later if it becomes an issue.
 
The ABS and traction control indicators come on everytime I start the car I hit reset to make them go away thats been for yrs . I had just took it into the shop for an oil leak they also did 4 tie rods and a wheel bearing and hub the car was riding finefor a day til that bvery next day I had to slamn the breaks on hard .

Now my ride is horrible I took it back they couldnt find anything the mechanic said as you maybe I flat spotted the tire he however could not see it they balance all 4 wheels but the ride that I notice is horrible the mechanbic felt it as well So as far as feeling anything diffrent its just that the ride is very bumpy not smooth at all
other then that didnt notice anything go active during the ride



C1243 is a stalled EBCM Pump. Did you have any indication the ABS/AH/TC or any part went active during the drive? Message displayed or feel anything.

RPO code is a communication loss. We an attach that later if it becomes an issue.
 
I just checked codes again seems if you drive it a couple times more codes come up after clearing the codes only those 2 cods came up I gave you but now after two more rides I see a bunch of codes are on there again here they are

10 PCM
P1571

28 TCS
C1243H

40 BCM
B0432H

58 SDM
U1040H

60 IPC
U1040H

AO-LDCM
B2264H

A1 RDCM
B2265

BO-RFA
U1096H
U1064H
U1016H
C2100HC
C2115HC






C1243 is a stalled EBCM Pump. Did you have any indication the ABS/AH/TC or any part went active during the drive? Message displayed or feel anything.

RPO code is a communication loss. We an attach that later if it becomes an issue.
 
Seems like you are also having some communication issues with the Serial Bus. I think it is related to the doors or seat. These are common for problems in the connectors feeding the doors which are in the A-pillars.

To prove that issue, do the following. It will prevent any remote control issues like driver controlling the passenger door.

Delete all your codes, then:

Look into the passenger side fuse box area. look in the area between the BCM and the console and you will see 2 Star connectors like in the picture. Pull the top off of the one with 4 wires going into it.

Go for a few drives and pull your codes again.





Sorry but the picture hosting on this site is screwed up. PM me with your email and I will send it to you.

I'm trying to post the picture again.


 
Last edited by a moderator:
Im having trouble finding this area . Is this under the glove box ?



Seems like you are also having some communication issues with the Serial Bus. I think it is related to the doors or seat. These are common for problems in the connectors feeding the doors which are in the A-pillars.

To prove that issue, do the following. It will prevent any remote control issues like driver controlling the passenger door.

Delete all your codes, then:

Look into the passenger side fuse box area. look in the area between the BCM and the console and you will see 2 Star connectors like in the picture. Pull the top off of the one with 4 wires going into it.

Go for a few drives and pull your codes again.



Sorry but the picture hosting on this site is screwed up. PM me with your email and I will send it to you.
 
Read your owners manual. It tells you how to access it.
 
I have added the picture that dadaroo was having problems posting.
 
Ya know I have thsat car 15 yrs now bought it brand new in 2000 I have always had the owners manual usually kept it in the trunk a few times in the house when looking things up I now go to look for it I can not find it. I am going to sweep my house tomorrow and look for it if not maybe my brothers house I lived with him last yr for awhile otherwise I migyt have to get a new one this aggravatres the crap out of me .I always got on my girl about keeping car manuals albeit mine is 15 yrs old , anyway Ill get back to you hopefully tomorrow with it thanks so far for all the help

Read your owners manual. It tells you how to access it.
 

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