Odometer "correction" devices

twinbopilot

twinbopilot

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Saw a video on Youtube about this $500 eprom programmer that is sold for "odometer correction" which seems fishy. It supposedly can also reprogram your speedo for the installation of larger wheels, which I guess is a legit usage.

Guy just hooked it up, punched in what he wanted the mileage to be, and WHAM the "new" mileage showed up on the odometer.

This has me worried that every used car dealer is gonna have this trick up his sleeve. In TX, odometers are "exempt" after 7 years so I'm not sure they can even get in trouble for it on a car older than 7 years (Like an 00', 01', or '02 LS).

Any thoughts? Anyone ever used something like this after they added bigger wheels?
 
twinbopilot said:
Saw a video on Youtube about this $500 eprom programmer that is sold for "odometer correction" which seems fishy. It supposedly can also reprogram your speedo for the installation of larger wheels, which I guess is a legit usage.

Guy just hooked it up, punched in what he wanted the mileage to be, and WHAM the "new" mileage showed up on the odometer.

This has me worried that every used car dealer is gonna have this trick up his sleeve. In TX, odometers are "exempt" after 7 years so I'm not sure they can even get in trouble for it on a car older than 7 years (Like an 00', 01', or '02 LS).

Any thoughts? Anyone ever used something like this after they added bigger wheels?
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no, but i did sell a few cars this way:shifty:
 
i dont know why everyone in the world is so :q:q:q:qing worried about millage it really doesnt mean much i know a kid who drove an 84 lincoln with 780,000 legit miles on it ran perfect and then theres the guy on here with the new one and only like 40,000 and has nothin but problems
 
Basically I agree with you about mileage not being that important. But it definitely affects the value (just check Kelly BB). I only worry when a seller raises his price because the car is supposed to be "low mileage" but in actuality he has used a device such as this to roll the odometer back. Heck, maybe I'll buy one and get into the used car business ;)
 
Not to mention, if people are pissing around with a vehicle's mileage with intent to misrepresent and sell, it completely messes up the vehicle's maintenance schedule.
 
An SCT Xcal can make change for tire size but will not roll back mileage.
 
gcwimmer said:
An SCT Xcal can make change for tire size but will not roll back mileage.
Click to expand...

Im sure any tuner can do it, there is always a code there, you just need to find it. But why would someone want to change their odometer? I take pride in having a ton of miles on my car! Just means you been AROUND!
 
twinbopilot said:
Basically I agree with you about mileage not being that important.
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thats like saying you dont care how many guys did your girlfriend before you end up marrying her!!!

It does matter.
In NY, the mileage follows the title to a certain point, so changing the odometer won't do anything. the back of the title where you sign it also states that you are saying the listed mileage is accurate, just another lowlife lieing about the condition of a vehicle.

Hope you get a**fuc*** for your actions.

MILEAGE DOES MATTER>
 
mileage can be changed on the OD, but its also stored in the computer. So its in 2 places. Dealership can check to make sure both match. So even if i had 100k on my car and bought a new cluster that said 50k, if the dealership actually checked it would say 100k. Plus this trick usually only pays off if you owned the car from day one, or a very long time. Most times you can catch it on the carfax reports.
 
This is one time im gonna have to agree with #1fordfan, in michigan you gotta state the mileage, and that its correct, and on the carfaxes and whatnot, you can actuallly see a mileage update.

Who would buy a car seeing


1/1/01: 50m
5/10/04: 55,000m
5/19/06: 90,134m
9/14/09: 40,000m
 
Yikes, this definitely opens up a welcome can of worms for the unscrupulous and dishonest. :rolleyes:

ground_zero298 said:
mileage can be changed on the OD, but its also stored in the computer. So its in 2 places. Dealership can check to make sure both match.
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That is great for dealers, but does not help private buyers.
 
Why would you want to correct the niles on the car's odometer? Unless you're a dealer trying to be sneaky, but besides them, whats the point.
 
If you have a cluster go out under warranty the dealer ship will reset the miles to the right mileage on the new cluster.

Plus if i go look at a car and the first thing the guy points out is I changed my cluster, the actual mileage is.... I would take his word for it, But if I ask then he says, oh yeah... I just walked away.
 
the display on the cluster is just an LED display, not an odometer like the old style. the PCM sends the output to the LED to display the miles stored on the PCM.
The odometer correction device sounded fishy to you because hopefully deep down inside you realize it is wrong.
If you wouldn't enjoy this surprise, why would you be willing to do it to someone else!!
 
#1fordfan said:
the display on the cluster is just an LED display, not an odometer like the old style. the PCM sends the output to the LED to display the miles stored on the PCM.
The odometer correction device sounded fishy to you because hopefully deep down inside you realize it is wrong.
If you wouldn't enjoy this surprise, why would you be willing to do it to someone else!!
Click to expand...

Okay, you couldn't possibly be more wrong here.

1. The mileage (odometer reading) is stored in the instrument cluster, and only in the instrument cluster. (The PCM is married to the instrument cluster via an exchange of "secret" serial numbers, but the PCM does not have or know what the odometer reading is.)

2. The odometer display on the LS is not LED. It is vacuum fluorescent. The two technologies are about as different as can be.

3. Yes, of course the odometer reading can be changed. The dealers can do it to make a replacement cluster display the same mileage as the original cluster did. The crooks found the secret keys to using this feature and that is how they do it.
 
led/vacuum flourescent, holy F are you kidding me!!!!

the PCM get the input from the VSS on the tranny, and yes, you are right the dealer can change the reading.
I believe if the cluster is swapped out, the mileage will display from the PCM data
 
#1fordfan said:
led/vacuum flourescent, holy F are you kidding me!!!!

the PCM get the input from the VSS on the tranny, and yes, you are right the dealer can change the reading.
I believe if the cluster is swapped out, the mileage will display from the PCM data
Click to expand...

Wow, it just continues.

1. The PCM does not get the VSS from the transmission. The VSS signal on the LS comes from the ABS controller. It averages all of the wheel speed inputs together to make this signal. It sends the information out via the CAN bus (on gen II) and on a specific signal line from the ABS controller. I can look up the pin number and wire color if you like.

2. You can believe all you want to about the PCM. I know that the mileage is stored in the cluster and not in the PCM.

I also know the difference between LEDs and Vacuum fluorescent. I also know how to spell "fluorescent." I guess that common sense doesn't apply to technical details, only talking about facts that you know, or spelling.
 
joegr said:
Wow, it just continues.

1. The PCM does not get the VSS from the transmission. The VSS signal on the LS comes from the ABS controller. It averages all of the wheel speed inputs together to make this signal. It sends the information out via the CAN bus (on gen II) and on a specific signal line from the ABS controller. I can look up the pin number and wire color if you like.

2. You can believe all you want to about the PCM. I know that the mileage is stored in the cluster and not in the PCM.

I also know the difference between LEDs and Vacuum fluorescent. I also know how to spell "fluorescent." I guess that common sense doesn't apply to technical details, only talking about facts that you know, or spelling.
Click to expand...

:cool:
 
The mileage IS in the cluster. Might be stored in the PCM somewhere,
but the cluster shows what the cluster knows.

You put a brand new cluster in an LS with 100,000 miles, and your gonna be driving an LS with "O" miles
 
LOL funny story, my buddy drives an 1982 mercury lynx with about a couple grand worth of stereo in it, put it up about half way and his odometer rolled back a good 2-3 thousand km's i have a vid somewheres ill find it and upload it.
 
#1fordfan said:
thats like saying you dont care how many guys did your girlfriend before you end up marrying her!!!


MILEAGE DOES MATTER>
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to be honest i dont care but thats because ive :q:q:q:qed alot women and so i really cant be a dick to her about it, but i mean millage really doesnt mean much when its right if some one is :q:q:q:qing around with it thats different like a girl telling you shes a virgin and shes not you'll be able to tell but any ways...
 
Digital Segment Displays

Trip A/B And Odometer Displays

The vehicle speed signal (VSS) from all four wheels are hardwired directly to the ABS/TC/IVD. The speed status is then sent to the instrument cluster by the ABS/TC/IVD via the SCP communication network to establish a rolling count.

direct from the Ford CD, it does originate from the VSS to the ABS for output to the display.
 
#1fordfan said:
Digital Segment Displays

Trip A/B And Odometer Displays

The vehicle speed signal (VSS) from all four wheels are hardwired directly to the ABS/TC/IVD. The speed status is then sent to the instrument cluster by the ABS/TC/IVD via the SCP communication network to establish a rolling count.

direct from the Ford CD, it does originate from the VSS to the ABS for output to the display.
Click to expand...

Gen I uses the SCP bus, gen II uses the CAN bus. In either case, the ABS controller generates the VSS signal, not anything else!

Tell you what, pull up the LS wiring diagrams, and prove me wrong. Be warned, this is what I do for a living (design electronics), so I just might know what I am talking about.

Here is what it should say.

"The wheel speed signals from each of all four wheels are hardwired directly to the ABS/TC/IVD (ABS controller). The speed status (VSS, which is the average of the wheel speed signals) is then sent [from the ABS controller] to the instrument cluster by the ABS/TC/IVD via the SCP communication network to establish a rolling count."

The wheel speed sensor signals feed into the ABS controller at pins 34, 42, 36, and 45. These wheel speed sensor signals do not connect to anything else. They're just wire connections between the wheel speed sensors and the ABS controller.

The ABS controller communicates with the rest of the car via the SCP bus at pins 15 and 16, and/or the CAN bus at pins 25 and 29. Two physical VSS signals are provided from the ABS controller at pins 22 and 39. The signal at pin 22 is for factory navigation, and the signal at pin 39 is for the rear parking aid module.
 
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I know for a fact that the LS stores the mileage inside of the cluster. There has been a couple people who have swapped out clusters in the LS be it for gauge style or whatever and when you swap them it will read the mileage on the cluster. However, from what I know it will also have an annoying ass beep and won't function correctly until you take it to the dealer to be re-programmed.
 
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