Code history
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Your best bet is to purchase a Diagnostic Scanner that is C.A.N. Bus compliant.
I personaly have an ACTRON CP-9180 and it does a good job. It also has the ability to view O2 sensor operation and all the sensors in live data. You can read and clear the DTCs.
Found out that it cant see the BODY DTCs but, if you get a more advanced ACTRON scanner they can! My CP-9180 was $130 from amazon.com. The more advanced ones are about $220.
BC
I personaly have an ACTRON CP-9180 and it does a good job. It also has the ability to view O2 sensor operation and all the sensors in live data. You can read and clear the DTCs.
Found out that it cant see the BODY DTCs but, if you get a more advanced ACTRON scanner they can! My CP-9180 was $130 from amazon.com. The more advanced ones are about $220.
BC
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Once the battery is disconnected, all the codes get erased. when the battery is reconnected, numerous spurious DTCs get set.
Just erase the old HISTORY DTCs and see what comes back. Codes tha are CURRENT are the ones to worry about. History Codes clear them selves after a period of time.
Thread Starter
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Approximately 3 weeks from now I will be purchasing an '08 3Lt M6 coupe. I am concerned about the Active Handling system problems being present in this vehicle. If I could pull all the codes, I would know whether or not the Active Handling system has or had issues.
Safety Car
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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
I personally think pulling the battery cable to erase codes is not a good idea. For one thing, it erases the LTFT. And the history codes will be erased which could help diagnose a problem. After so many cycles of no problem, the codes go away by themselves.
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You need a code reader that is CAN BUSS compliant and able to read the Powertrain & BODY CODES to diagnose your potential purchase.
Even if you possess a $1000 Code reader,, if someone has erased the previous DTCs,, there will be ZERO evidence of any issues if the issue causing the problem doesn't have an issues again.
So,,,,,,,,,,,,, Unless your potential purchase has had a problem since the last DTC erase or is having the issue currently, you will NOT KNOW.
That being said,, a C5 or C6 with a weak battery will set numerous spurious DTCs and cause all sorts of random issues
IF,,,,, you want to know what your examining is working properly,, read the DTCs before you take the car for a drive. Write down ALL the DTCs/ CLEAR ALL the DTCs!!!!!!!!!!!!!
Take the car for a spirited drive. MOVE the tilt & Telescopic steering wheel Thur ALL positions. Rub the HVAC thru ALL MODES.
At the end of the test drive, read ALL DTCs and see if you have any!
Bill
Even if you possess a $1000 Code reader,, if someone has erased the previous DTCs,, there will be ZERO evidence of any issues if the issue causing the problem doesn't have an issues again.
So,,,,,,,,,,,,, Unless your potential purchase has had a problem since the last DTC erase or is having the issue currently, you will NOT KNOW.
That being said,, a C5 or C6 with a weak battery will set numerous spurious DTCs and cause all sorts of random issues
IF,,,,, you want to know what your examining is working properly,, read the DTCs before you take the car for a drive. Write down ALL the DTCs/ CLEAR ALL the DTCs!!!!!!!!!!!!!
Take the car for a spirited drive. MOVE the tilt & Telescopic steering wheel Thur ALL positions. Rub the HVAC thru ALL MODES.
At the end of the test drive, read ALL DTCs and see if you have any!
Bill
Pro
Joined: Apr 2006
Posts: 737
Likes: 24
From: Edwardsville IL
You need a code reader that is CAN BUSS compliant and able to read the Powertrain & BODY CODES to diagnose your potential purchase.
<partial snip>
IF,,,,, you want to know what your examining is working properly,, read the DTCs before you take the car for a drive. Write down ALL the DTCs/ CLEAR ALL the DTCs!!!!!!!!!!!!!
Take the car for a spirited drive. MOVE the tilt & Telescopic steering wheel Thur ALL positions. Rub the HVAC thru ALL MODES.
At the end of the test drive, read ALL DTCs and see if you have any!
Bill
<partial snip>
IF,,,,, you want to know what your examining is working properly,, read the DTCs before you take the car for a drive. Write down ALL the DTCs/ CLEAR ALL the DTCs!!!!!!!!!!!!!
Take the car for a spirited drive. MOVE the tilt & Telescopic steering wheel Thur ALL positions. Rub the HVAC thru ALL MODES.
At the end of the test drive, read ALL DTCs and see if you have any!
Bill
Not trying to step on other thread; only enhance actually.
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Verdad Gallardo
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Bill
Pro
Joined: Apr 2006
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From: Edwardsville IL
Bill C and Bill D.....
Thanks for feedback!
(I've already purchased this / challenged on time travel due to being in a hurry for a Nuero Surgeon visit on the biggest day of my life.)
I guess my best alternative now is to try and get the dealer to print the existing codes / erase (guess they know how - I will have to look into) and perform the spirited drive BC suggests and aquire new codes. I guess this would limit my $ outlay for time being too.
Another related thread I started seeking info....
http://forums.corvetteforum.com/c6-t...ns-please.html
Any and all feedback welcomed!!!!! Hope I get my car today!!!!!!
Thanks for feedback!
(I've already purchased this / challenged on time travel due to being in a hurry for a Nuero Surgeon visit on the biggest day of my life.)
I guess my best alternative now is to try and get the dealer to print the existing codes / erase (guess they know how - I will have to look into) and perform the spirited drive BC suggests and aquire new codes. I guess this would limit my $ outlay for time being too.
Another related thread I started seeking info....
http://forums.corvetteforum.com/c6-t...ns-please.html
Any and all feedback welcomed!!!!! Hope I get my car today!!!!!!
Last edited by gsx1300r; Jun 20, 2011 at 07:31 AM. Reason: added ref to my DIC Thread
