Many of our customer's frequently asked questions are answered here.
What is On-Board Diagnostics
1996 and newer cars and trucks have a standardized computer interface connector
used to connect external diagnostic equipment. When the "Service Engine
Soon" or "Check Engine" light illuminates on your dashboard, the
Auterra scan tool connects to your vehicle's diagnostic connector to read the
stored diagnostic trouble code (DTC). The DTC helps you determine what's wrong
with your vehicle. For instance, a DTC of P1234 could mean "Engine oil
pressure too low fault".
overview of OBD II can be found here.
Where is my vehicle's OBD II
II compliant vehicles must also have a 16-pin connector located in plain sight
underneath the dash near the driver’s seat. Alternatively it may be behind
ashtrays or concealed by an easily removed plastic cover, sometimes with the
letters “OBD” stamped on the outside.
II Connector (front view)
help you find the connector on your vehicle, see the OBD
II connector locations listed by vehicle manufacture/model/year.
Will the Auterra
DashDyno or Dyno-Scan work on my vehicle?
All Auterra products supports all US 1996 and newer passenger cars, light-duty trucks, and medium-duty vehicles including Domestic, European,
Most diesel cars and trucks work with our scan tool (see
table below). Heavy-duty vehicles with a gross vehicle weight rating (GVWR)
exceeding 14,000 pounds also may not work with our scan tool. See the About
CAN page for information regarding diesel and heavy-duty supported vehicles.
Some 1994 and 1995
model year vehicles
are also supported with an EPA sticker under the hood
indicating OBD II compliance. All 1996 and later vehicles are OBD II
compliant and do not require the under hood sticker.
live outside the US. Will the Auterra DashDyno or Dyno-Scan work on my vehicle?
If you live within the United States, all 1996 and newer
passenger cars, light-duty trucks, and medium-duty vehicles are required to
support OBD II diagnostics.
If you live within Europe and the UK, EOBD (European On-Board
Diagnostics) is required. The Dyno-Scan works on EOBD vehicles.
If you within any other country not listed above, the your
country may have started requiring OBD
in other years or have no mandated OBD II requirements.
Where You Live
|United States (gas)
||1996 and newer
||1994 and 1995
|United States (diesel)
||2004 and newer
||1996 to 2003
|United States (Heavy-Duty
vehicles with GVRW exceeding 14000 pounds)
||1996 and newer
||1998 and newer
||1996 and 1997
|Europe and UK (gas/petrol)
||2000/01 and newer
||1996 to 1999
|Europe and UK (diesel)
||2003/04 and newer
||1996 to 2002
|All Other Countries
||1996 and newer
The "Fully Supported Years" column means that
100% of the vehicles sold in that country conform to OBD II or EOBD starting in
the year listed.
The "Incompletely Supported Years" column means
that some vehicles within that country will work with the Dyno-Scan, and some
will not. It your vehicle lies in the incompletely supported years range, the OBD
II Connector Pinout page can help determine if your vehicle will work with
our scan tool.
scan tool support European EOBD?
Yes, European EOBD (European On-Board Diagnostics) equipped
vehicles work with the DashDyno / Dyno-Scan.
PC requirements are there to run the Dyno-Scan for Windows software?
Dyno-Scan for Windows runs on the following Windows
- Windows 8 (32-bit and 64-bit, all versions)
- Windows 7 (32-bit and 64-bit, all versions)
- Windows Vista (32-bit and 64-bit, all versions)
- Windows XP (32-bit and 64-bit, all versions)
The computer must meet the following hardware requirements.
Pentium 300MHz or higher (all Intel compatibles are
supported, like AMD)
128 MB of RAM or more
USB port or Bluetooth adapter
60 MB of available hard disk space
The A-501, A-500 and A-302 kits connects directly to any PC USB port. The
A-303 kit connects wirelessly over Bluetooth.
Yes, only if the Mac is running Parallels
Desktop for Mac.
Is airbag (SIR) or antilock brake (ABS)
Yes, for some make/model vehicles if you purchase an enhanced
OBD II software upgrade for your Auterra scan tool.
Will your scan tool read
manufacturer specific trouble codes?
Yes, the scan tool reads both generic and manufacturer specific trouble codes
for powertrain, emission, and network communication type errors. It will also
read ABS and airbag codes if you purchase an enhanced
OBD II software upgrade.
are enhanced OBD II software updates handled?
OBD II software packages have free updates for all minor version releases. For
instance, if you purchase version 1.0 you will receive updates up until version
1.9. When the software major version number changes to 2.0 a software update
needs to be purchased.
do I get software updates?
page has all software updates. See the software
I purchase DashDyno, can I use the Dyno-Scan Windows software to connect to a
Yes. The DashDyno has a pass-through
mode where the PC communicates to the vehicle through DashDyno using a USB
cable. You can use all of the features of Dyno-Scan while connected to the
type of GPS will connect to DashDyno?
GPS receiver will connect to DashDyno. The GPS receiver can be a handheld, such
as the Garmin eTrex series, an in-vehicle mounted GPS, or can be a
"puck" style GPS without a display. A USB receiver will not work.
does DashDyno measure wideband air/fuel ratio (AFR)?
measures air/fuel ratio in one of two ways. First, if the vehicle is factory
equipped with a wideband O2 sensor then DashDyno reads AFR directly from the
vehicle ECU. If the vehicle has a narrow band O2 sensor, then an external
wideband controller is required (such as the Innovate LC-1 or LM-1). The analog
output of the wideband controller is connected to the analog input on DashDyno.
Once connected, air/fuel ratio can be viewed on-screen and recorded with all the
I need to pay for Google Earth service when playing back DashDyno recorded
No. The free Google
Earth software and service is all that is required to playback
DashDyno files containing GPS data.
Why would I want to purchase an Auterra
See our Why a
Scan Tool? page for more information on how a scan tool can help the average
Starting with model year 2003, select vehicle makes and
models started using a new means of diagnostic communication called CAN. By
model year 2008, all vehicles sold in the US must use CAN. All Auterra products
support all OBD II protocols, including CAN bus. See our About
CAN page for a list of CAN bus equipped vehicles.
What vehicle protocols does the Auterra OBD II scan tool
Auterra DashDyno and Dyno-Scan kits support all OBD II protocols including J1850 (VPW, PWM), ISO 9141, ISO 14230 (KWP 2000), and
ISO 15765 (CAN).
Is an accelerometer used to
measure horsepower and torque?
No. Like a standard chassis dyno, such as Dynojet, speed and RPM are used to
determine horsepower and torque. Most accelerometer dynos only provide an
estimated horsepower/torque figure since they do not have access to the
vehicle's RPM. Auterra's products create graphs to reveal HP/torque at any
What sensors are supported
by the scan tool?
See our Supported
Parameters page for a complete list of sensors and parameters.
What features are supported
by the scan tool?
See our Product Features
and Software pages for more
information regarding scan tool capabilities.
How much sensor data can I
record onto the DashDyno?
The DashDyno recording capacity is only limited by the size of the SD / MMC
card. A 2GB SD card will provide hundreds of hours of recording time.
Can I export recorded data
to a spreadsheet?
Yes. The Dyno-Scan for Windows exports data to a spreadsheet in a CSV (comma
separated value) file format.
Do you support pre-1996
No, our scan tool supports 1996 and later vehicles except for a limited
subset of 1994 and 1995
model year vehicles.
Do I need special tools?
No special tools are required to access the vehicle's 16-pin OBD II
connector. It is usually in plain sight underneath the dash.
Will a scan tool harm my vehicle?
No. The scan tool only reads values from the vehicle and does not control