I just got a '97 Jeep Wrangler and I suspect that the milerage counter (it's digital on this model) has been cheated. It marks 58000 kilometers (yeah metric system) but I think the car has about 140000 kilometers.
There is anyway to find out the real milerage? I was thinking if the injection system computer is storing the real value in any record or log so with the proper cable connected to the ODB-II conector and a program get the real value. Is this possible???
Thank you in advance, Fidelio
Ooops I already post this.
So the question is just if the programs reading from ODB-II connector was that information.
Thank you, Fidelio
P.D.: Sorry about doble posting within a couple of months
"Fidelio" escribió en el mensaje news:dg8jjd$33d$ snipped-for-privacy@caladan.landsraad.net...
Do you have carfax where you are? If not maybe you can find a dealer who has worked on it in the past and a pattern might show up. Can/will your licensing authority give you past owners names?
JoBo
No, you can not obtain the mileage from the OBD II connector.
Hmm it is Europe and I'm not sure what kind of info I will get from CardFax since the car only was on Germany and now in Spain. So I don't want to pay Cardfax for nothing.
Related to owners names... in Europe is very dificult to get personal information since the laws agains that are very strong I don't know how is the law at the States but at EU is very very restrictive.
Thank you anyway.
"Jo Bo" escribió en el mensaje news:TWVVe.34113$ snipped-for-privacy@tornado.ohiordc.rr.com...
Really? I saw at Autotap (a USB OBD-II reader) a parameter saying "Odometer" but what I have is only the manual of the program so I don't know if the information is retreived or not.
Thank you,
"Jeff Strickland" escribió en el mensaje news: snipped-for-privacy@ez2.net...
Instrument Panel Description and Operation Section 8Js - Pages 18 & 19
Envíeme una e-dirección válida en mi dirección abajo (Quite el SPAM) y enviaré la información adicional. Espero que este le ayude.
ODOMETER
DESCRIPTION
An odometer and trip odometer are standard
equipment in all instrument clusters. The odometer
and trip odometer information are displayed in a
common electronic Vacuum-Fluorescent Display
(VFD), which is visible through a small window cutout
centered on the lower edge of the speedometer
gauge dial face. However, the odometer and trip
odometer information are not displayed simultaneously.
The trip odometer reset switch on the
instrument cluster circuit board toggles the display
between odometer and trip odometer modes by
depressing the odometer/trip odometer switch knob
that extends through the lower edge of the cluster
lens, just right of the speedometer. Both the odometer
and the trip odometer information is stored in the
instrument cluster memory.
The odometer can display values up to 999,999
kilometers (999,999 miles). The odometer latches at
these values, and will not roll over to zero. The trip
odometer can display values up to 999.9 kilometers
(999.9 miles) before it rolls over to zero. The odometer
display does not have a decimal point and will
not show values less than a full unit (kilometer or
mile), the trip odometer display does have a decimal
point and will show tenths of a unit (kilometer or
mile). The unit of measure for the odometer and trip
odometer display is not shown in the VFD. The unit
of measure for the instrument cluster odometer/trip
odometer is selected at the time that it is manufactured,
and cannot be changed. During daylight hours
(exterior lamps Off) the VFD is illuminated at full
brightness for clear visibility. At night (exterior
lamps are On) the VFD lighting level is adjusted
with the other cluster illumination lamps using the
panel lamps dimmer input from the left (lighting)
multi-function switch. The VFD, the trip odometer
switch, and the trip odometer switch button are serviced
as a unit with the instrument cluster housing,
which includes the electronic circuit board and the
rear housing cover. The trip odometer switch knob is
available for separate service replacement.
OPERATION
The odometer and trip odometer give an indication
to the vehicle operator of the distance the vehicle has
traveled. This gauge is controlled by the instrument
cluster circuit board based upon the cluster programming
and electronic messages received by the cluster
from the Powertrain Control Module (PCM) over the
Programmable Communications Interface (PCI) data
bus. The odometer and trip odometer information is
displayed by the instrument cluster Vacuum-Fluorescent
Display (VFD), and the VFD will not display
odometer or trip odometer information after the ignition
switch is turned to the Off position. The instrument
cluster circuitry controls the VFD and provides
the following features:
² Odometer/Trip Odometer Display Toggling -Actuating the trip odometer reset switch momentarily
with the ignition switch in the On position will
toggle the VFD between the odometer and trip odometer
display. Each time the ignition switch is turned
to the On position the VFD will automatically return
to the mode (odometer or trip odometer) last displayed
when the ignition switch was turned to the
Off position.
² Trip Odometer Reset - When the trip odometerreset switch is pressed and held for longer than
about two seconds, the trip odometer will reset to
000.0 kilometers (miles). The VFD must be displayingthe trip odometer information in order for the
trip odometer information to be reset.
² Message Failure - If the cluster fails to receivea distance message during normal operation, it will
hold and display the last data received until the ignition
switch is turned to the Off position. If the cluster
does not receive a distance message within one
second after the ignition switch is turned to the On
position, it will display the last distance message
stored in the cluster memory. If the cluster is unable
to display distance information due to an error internal
to the cluster, the VFD display will be blank.
² Actuator Test - Each time the cluster is putthrough the actuator test, the VFD will display all of
each number (0 through 9) in steps to confirm the
functionality of the VFD and the cluster circuitry.
The PCM continually monitors the vehicle speed
sensor, then sends the proper distance messages to
the instrument cluster. For further diagnosis of the
odometer/trip odometer or the instrument cluster circuitry
that controls these functions, (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). For proper diagnosis of the
vehicle speed sensor, the PCM, the PCI data bus, or
the message inputs to the instrument cluster that
control the odometer/trip odometer, a DRBIIIt scan
tool and the appropriate diagnostic information are
required.
Complete and clear information. Thank you.
"Billy Ray" escribió en el mensaje news:1b166$4329840a$d8449845$ snipped-for-privacy@FUSE.NET...
Didn't you say you worked in a dealer?
If so, you would know that SRI mileage has nothing to do with the actual mileage on the vehicle, especially knowing the PCM allows you to change it using the DRB.
I doubt they would put that ability in the hands of any knucklehead with access to a DRB.
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