ODOMETER QUESTION
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From: JACKSON NJ
ODOMETER QUESTION
DOES ANYONE KNOW WHAT CONTROLS THE ODOMETER ON A 91 VETTE---IS IT CONTROLED IN THE COMPUTER OR IN THE DASH DISPLAY?
IF YOU PURCHASE A NEW DASH PANEL--DOES GM LOG YOUR MILAGE WHEN YOU PURCHASE IT?? THANKS IN ADVANCE
JIMBO
:jester
IF YOU PURCHASE A NEW DASH PANEL--DOES GM LOG YOUR MILAGE WHEN YOU PURCHASE IT?? THANKS IN ADVANCE
JIMBO
:jester
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
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Re: ODOMETER QUESTION (JIMBO55)
I think it's in the computer, but I'm not 100% sure.
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From: Mexico Beach FL
Re: ODOMETER QUESTION (JIMBO55)
DOES ANYONE KNOW WHAT CONTROLS THE ODOMETER ON A 91 VETTE---IS IT CONTROLED IN THE COMPUTER OR IN THE DASH DISPLAY?
IF YOU PURCHASE A NEW DASH PANEL--DOES GM LOG YOUR MILAGE WHEN YOU PURCHASE IT?? THANKS IN ADVANCE
JIMBO
:jester
IF YOU PURCHASE A NEW DASH PANEL--DOES GM LOG YOUR MILAGE WHEN YOU PURCHASE IT?? THANKS IN ADVANCE
JIMBO
:jester
GM makes it difficult to modify the readings in the CCM for obvious reasons.
As long as you use the old CCM, the odometer readings remain the same.
If you change the CCM, there is more than the odometer that may be different. The CCM checks the ignition key resistance and passes the information on to the ECM. It also has the option content of the vehicle, along with the VIN number. If someone decided to change the mileage by swapping the CCM from another vehicle, you can use a Vetronix Tech-1 or Tech-2 scan-tool to read the VIN number from the CCM and compare it with the VIN on the body -- if they are not the same, someone did a no-no.
Tom Piper
[Modified by Tom Piper, 7:14 AM 2/4/2002]
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From: Mexico Beach FL
Re: ODOMETER QUESTION (JIMBO55)
JIMBO55
As a P.S. here, if you need a new CCM, the Vetronix Tech-1 is capable of downloading the old readings out of the old CCM and uploading them into the new/Delco-refurbished CCM. Vetronix will supply the software to do this to a GM dealer or certified Delco shop. The idea is to prevent odometer tampering.
AS Scorp508 said, after the new/refurbished CCM is put in place, you only have about 100 miles to update it with the information -- after that, you are locked out.
Tom Piper
As a P.S. here, if you need a new CCM, the Vetronix Tech-1 is capable of downloading the old readings out of the old CCM and uploading them into the new/Delco-refurbished CCM. Vetronix will supply the software to do this to a GM dealer or certified Delco shop. The idea is to prevent odometer tampering.
AS Scorp508 said, after the new/refurbished CCM is put in place, you only have about 100 miles to update it with the information -- after that, you are locked out.
Tom Piper
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From: JACKSON NJ
Re: ODOMETER QUESTION (Tom Piper)
Tom --thanks for the reply--my problem is my vette reads 169000 miles the ccm was taken out of a wrecked vette
my title reads 97000 miles--how do i get the odo. to read the title miles--can this be accomplished??--let me know if you can help--i do have a local shop that is certified. thanks jimbo :p:
my title reads 97000 miles--how do i get the odo. to read the title miles--can this be accomplished??--let me know if you can help--i do have a local shop that is certified. thanks jimbo :p:
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From: Fear causes hesitaiton...and hesitation will cause your worst fears to come true. Houston TX
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Re: ODOMETER QUESTION (JIMBO55)
I just had it done on my 91. The chev dealership has to do it. I bought a new CCM so I do not know if a used one can be programmed.
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From: Mexico Beach FL
Re: ODOMETER QUESTION (JIMBO55)
Tom --thanks for the reply--my problem is my vette reads 169000 miles the ccm was taken out of a wrecked vette
my title reads 97000 miles--how do i get the odo. to read the title miles--can this be accomplished??--let me know if you can help--i do have a local shop that is certified. thanks jimbo :p:
my title reads 97000 miles--how do i get the odo. to read the title miles--can this be accomplished??--let me know if you can help--i do have a local shop that is certified. thanks jimbo :p:
The only way I know to accomplish this is to buy a new or delco refurbished unit and have a GM dealer or Delco shop set the values in the CCM before it reaches 100 miles. I have the same Vetronix Tech-1A that the GM dealers use, and Vetronix will not sell me the software to do this part. The dealer has what is called a "mass storage cartridge" that has the software to accomplish this. I borrowed the software from a friend at a dealer to do mine with my Tech-1A. Even a dealer can't change it after the 100 mile mark.
Be aware, you have to know all your options (like C68 climate control, ASR/ABS, etc) to program it in, along with your odometer mileage, VIN, etc.
This has been made difficult to do by design to prevent odometer tampering.
The only thing that I think you can change after the 100 mile mark is the ignition key pellet resistance reading.
Tom Piper
[Modified by Tom Piper, 9:27 PM 2/4/2002]
