How do you reset the computer after changing the battery in 2002 corvette
08-11-2009, 02:09 PM
#1
6th Gear
Thread Starter
How do you reset the computer after changing the battery in 2002 corvette
How do you reset the computer after changing the battery in 2002 corvette? Is there some thing that I need to do so I can get my door locks to work properly, and to get the check engine light to go out. I heard that after changing the battery I would have to reset the computer. My problems only started when I changed the battery. Please Help.
08-11-2009, 02:26 PM
#2
Tech Contributor
How do you reset the computer after changing the battery in 2002 corvette? Is there some thing that I need to do so I can get my door locks to work properly, and to get the check engine light to go out. I heard that after changing the battery I would have to reset the computer. My problems only started when I changed the battery. Please Help.
08-11-2009, 02:44 PM
#3
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Heres the procedure for reading and clearing your DTCs. Clear them and see if any reappear.
Some DTC can and will prevent certain things from operating correctly. If you clear the DTC and the function doesnt return, you may have other issues.
READING YOUR 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.
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!!
Some DTC can and will prevent certain things from operating correctly. If you clear the DTC and the function doesnt return, you may have other issues.
READING YOUR 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.
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!!
08-11-2009, 04:44 PM
#5
6th Gear
Thread Starter
ok thanks for the help, that worked great I got the hole list of codes, and I cleared them all. this is the list of codes that I got. The only one that concerns me is the first one. Here is the list. How important is the first trouble code.
PCM P0418 h c
BCM B0502 h
Bo507 h
B2482 h
LDCM B2282 h
B2284 h
U1064 h
RDCM B2283 h
B2283 h
U1064 h
PCM P0418 h c
BCM B0502 h
Bo507 h
B2482 h
LDCM B2282 h
B2284 h
U1064 h
RDCM B2283 h
B2283 h
U1064 h
08-11-2009, 05:36 PM
#6
Tech Contributor
ok thanks for the help, that worked great I got the hole list of codes, and I cleared them all. this is the list of codes that I got. The only one that concerns me is the first one. Here is the list. How important is the first trouble code.
PCM P0418 h c
BCM B0502 h
Bo507 h
B2482 h
LDCM B2282 h
B2284 h
U1064 h
RDCM B2283 h
B2283 h
U1064 h
PCM P0418 h c
BCM B0502 h
Bo507 h
B2482 h
LDCM B2282 h
B2284 h
U1064 h
RDCM B2283 h
B2283 h
U1064 h
08-11-2009, 06:20 PM
#7
6th Gear
Thread Starter
Yea I was able to clear it, and the door lock work great now. As far as I can tell every thing is working again. The only thing that concerns me is that first trouble code. I wonder it it will go on again. I read some there else that the battery might be leaking and dripping on something. I just replaced the battery with a new one, that is why I had to reset every thing. Is there something under the battery that the battery might be leeking on? Is there another fuse box there. I don't remember seeing one. Oh and one last thing, That air thingy, code, where is that if I have to replace a fuse or relay? Do you think that I will need to do that? Thank you for all your help.
08-11-2009, 11:47 PM
#8
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Yea I was able to clear it, and the door lock work great now. As far as I can tell every thing is working again. The only thing that concerns me is that first trouble code. I wonder it it will go on again. I read some there else that the battery might be leaking and dripping on something. I just replaced the battery with a new one, that is why I had to reset every thing. Is there something under the battery that the battery might be leeking on? Is there another fuse box there. I don't remember seeing one. Oh and one last thing, That air thingy, code, where is that if I have to replace a fuse or relay? Do you think that I will need to do that? Thank you for all your help.
As far as your 0418 If incorrect voltage is present on the vacuum control solenoid or the pump relay control circuits the device will not operate. This will be detected by the control module, and DTC P0412 for the solenoid or P0418 for the relay sets. Clear the code and see how long it takes or if it ever comes back. If it does post again.
Read the stickies above about leaking batteries. Most get gel type batteries to keep the leaky acid from dripping on one of the many computers in the car
good luck.
08-12-2009, 12:13 AM
#9
6th Gear
Thread Starter
Well the check engine light came back on. I assume it is the same one that was one before. The one that said c after it. I didn't have time to check it to be sure. The light came back on after about one mile. Any suggestions?
