Dyno-Scan™ for Windows

User Guide
Warnings
The exclamation point within the triangle is a warning sign alerting you of important
instructions accompanying the product. Please observe all warnings.

Do not operate the vehicle indoors. A running engine produces lethal carbon
monoxide exhaust fumes that can seriously harm or kill you if inhaled. Only run the
vehicle motor outdoors with proper ventilation. Many scan tool operations do not
require a running motor.

Do not attempt to operate or observe the scan tool while driving a vehicle.
Driving requires the full attention of the driver. Operating or observing the scan tool
will cause driver distraction and could cause a fatal accident.

Ensure the PC, cable, and OBD II adapter do not interfere with the vehicle
controls. A cable dangling in front of the foot pedals, gear shifter, or steering wheel
can interfere with vehicle operation and cause a fatal accident. Always ensure the
PC, cable, and OBD II adapter are securely fastened out of the way. If the scan tool
and PC cannot be safely attached as to not interfere with the vehicle controls, then
do not drive the vehicle with the OBD II adapter connected to the vehicle.

Never race or exceed the posted speed limit while on public highways. The
dynamometer operations require accelerating to high speeds. Always uses a closed
course raceway when performing dynamometer and acceleration tests.

ii
Terms of Use
The Software contains proprietary and confidential information that is protected by applicable
intellectual property and other laws. You may not modify or sell works based on the Software.
The Software is for your personal use. We grant you a personal and non-exclusive license to
use the object code version of the Software on a single Windows-based personal computer;
provided that you do not (and do not allow any third party to) copy, modify, reverse engineer,
create derivative works from, assign or otherwise transfer any right in the Software; and you
will not modify the Software by any means.

Disclaimer
The “Product” is the complete Dyno-Scan for Windows product including hardware, software,
user manual, and packaging.
Auterra, LLC assumes no responsibility for any loss or claim by third parties which arise
through the use of this Product. Auterra, LLC assumes no responsibility for any damage or loss
caused by deletion of data as a result of a Product malfunction. Be sure to backup copies of all
important data on other media to protect against data loss.
The Software, and all accompanying files, data and materials, are provided "as is" without
warranty of any kind, either expressed or implied, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. The entire risk as to the
quality and performance of the Software is with you. Should the Software prove defective, you
assume the cost of all necessary servicing, repair or correction.
AUTERRA, OR ITS PRINCIPALS, SHAREHOLDERS, OFFICERS, EMPLOYEES, AFFILIATES,
CONTRACTORS, SUBSIDIARIES, OR PARENT ORGANIZATIONS, SHALL NOT BE LIABLE FOR ANY
INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR OTHER DAMAGES INCLUDING BUT
NOT LIMITED TO, LOSS OF PROFITS, LOSS OF REVENUE, LOSS OF DATA, LOSS OF USE OF THE
PRODUCT OR ANY ASSOCIATED EQUIPMENT, DOWNTIME AND CONSUMER’S TIME OR FOR
BREACH OF ANY EXPRESS OR IMPLIED WARRANTY OR CONDITION, DAMAGE TO THE VEHICLE,
BREACH OF CONTRACT, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER LEGAL THEORY
RELATED TO THIS PRODUCT.

Copyright
1998-2012 Auterra, LLC. All rights reserved.

Trademarks
Windows® is a registered trademark of Microsoft Corporation. Google and Google Earth are
trademarks of Google Inc.

iii Table of Contents

 Table of Contents

Table of Contents i

Preface 1
Key Features 1
Minimum Platform and Software Requirements 2
OBD II 2
OBD II Connector 2
Specifications 2
Supported Vehicles 3
Abbreviations 3
Abbreviations and Definitions 3

Installing Windows Software 6

Uninstall Previous Dyno-Scan for Windows 6
Software Installation (All Windows Versions) 6
USB Driver Installation 6
Windows Vista/7 USB Driver Installation 7
Windows XP USB Driver Installation 9
USB Driver Virtual COM Port 13
Bluetooth Driver Installation 14
Bluetooth Pairing 15
Windows XP 15
Windows Vista 17
Windows 7 18
Software Updates 20

Connections 21
Connect your Dyno-Scan™ to the Personal Computer 21
Connect the Dyno-Scan™ to your Vehicle 21
Select COM Port 22

i
Dyno-Scan Basics 23
Options Dialog 25
Vehicle Speed Correction 28
Distance Correction 29
MPG Correction 29
Boost Calibration 30
Engine Size 31
Fuel Type 31
Fuel Cost 31
Dyno-Scan File Types 31
Create New Files 31
DashDyno Files 32
Docking Windows 33
Properties Windows 34
Navigation Docking Window 35
File Properties Docking Window 36
Dyno Setup Properties Docking Window 37
Run Statistics Docking Window 38
Toolbars 39
Status Bar 40

Scan Tool Operation 41

Connect Scan Tool to Vehicle 41
Start Dyno-Scan™ Software 41
Enhanced OBD II 42
General Information Screen 42
Diagnostic Trouble Codes Screen 43
Stored and Pending Diagnostic Trouble Codes Pane 44
Freeze Frame Pane 45
Record/Playback 46
Edit Parameters Dialog 47
Add and Remove Parameters 48

ii Table of Contents
 Supported Parameters 48
Live Data Screen 55
List Pane 56
Graph Pane 57
Oxygen Sensors 58
Oxygen Sensors Test Results Pane 58
Oxygen Sensor Output Legend Pane 59
Test Results Screen 59
On-Board Tests Screen 60
Analyze Live Data Screen 61
Viewing Recorded Live Data 63
Analyze Tool Bar 63
Options Button 64
Axis Control 64
Data-Cursor Control 66
Analyze Data Export 66
Playback 67
Code Search Screen 67
Import 67
Export 68

Dyno Operation 69
Theory of Operation 69
Auterra Dyno-Scan™ for Windows 70
Automatic Transmissions 70
Fast Sampling 71
Dyno Files 71
Dyno Setup File Properties 72
Drag Coefficient and Frontal Area 72
Dyno Setup File Properties Usage 73
Compute Gear Ratio Dialog 74
Tire Diameter 74

iii Table of Contents

 Measuring Overall Gear Ratio 75
Calculating Overall Gear Ratio 75
Confirming Gear Ratio Result 75
Using Tire Diameter and Gear Ratio 76
Automatic Transmissions 76
Dynamometer Getting Started 76
Power Torque Screen 77
Dynamic Graph Update Using File Properties 77
Dyno Run Dialog (Power Torque) 78
Performing a Power Torque Run 78
Power Torque Run Do’s and Don’ts 79
Power Torque Run Statistics 80
Acceleration Screen 80
Dyno Run Dialog (Acceleration) 80
Performing an Acceleration Run 81
Acceleration Run Do’s and Don’ts 82
Acceleration Run Statistics 82

Google Earth 84
Google Earth Options 86
Improving Playback Speed 87
Working Without an Internet Connection 88

Demo Mode 89
Enable Demo Mode 89

Exporting Files 90
Single-Point Row CSV File Format 90
Multi-Point Row CSV File 92
TrackVision CSV File 93
Analyze Live Data Save 93
Merge Files 93

PID Builder 96

iv Table of Contents
 Install Existing PID Files 96
OBD II Protocol Background 97
PID Builder Dialog 98
Create PID File 101
Open PID File 101

Troubleshooting 102
Scan Tool Connects but No Live Data 102
Can’t Open COM Port 102
No Communication (Scan Tool) 102
No Communication (Vehicle) 103
Lost Communication 103
Live Data Screen Is Blank 103
Oxygen Sensors Test Results Pane is Blank 103
Freeze Frame Pane is Blank 103
Clearing Codes Did Not Work or MIL Didn’t Turn Off 103

Diagnostic Trouble Codes 104

Diagnostic Trouble Code Format Structure 104
P00XX Fuel and Air Metering and Auxiliary Emission Controls 104
P01XX Fuel and Air Metering 105
P02XX Fuel and Air Metering 107
P03XX Ignition System or Misfire 108
P04XX Auxiliary Emission Controls 110
P05XX Vehicle Speed, Idle Control, and Auxiliary Inputs 111
P06XX Computer and Auxiliary Inputs 112
P07XX Transmission 113
P08XX Transmission 115
Additional Diagnostic Trouble Code Ranges 116
P09XX Transmission 116
P1XXX Manufacturer Controlled 116
P2XXX SAE Controlled DTCs 116
P3XX Manufacturer Controlled and SAE Reserved 117

v Table of Contents
Support 118

Warranty Information 119

Index 120

vi Table of Contents
 CHAPTER 1
Preface

Congratulations on your purchase of an Auterra’s Dyno-Scan™ for Windows. Please take time
to read through these operating instructions and become familiar with the operating
procedure.
The Auterra Dyno-Scan™ for Windows, in conjunction with your personal computer, enables
access to your vehicle’s diagnostic information.
The scan tool offers features such as read and clear trouble codes, turn off the “Check Engine”
light, and display live sensor data from the vehicle. The Dyno software adds a performance-
measuring package that includes a dynamometer, acceleration tests, and fuel economy
measurements.

Key Features
Dyno-Scan™ for Windows offers a multitude of diagnostic and performance-measuring
features:
• All 1996 and later vehicles supported, including American, Asian, and European
• Wireless Bluetooth and USB OBD II adapters available
• Read and clear diagnostic trouble codes (DTCs)
• Integrated DTC description databases including enhanced and generic definitions
• Turn off the vehicle’s Check Engine or Service Engine Soon light
• Read and clear freeze frame data
• Monitor live sensor data with line graphs, bar graphs, and meters
• Graphically zoom in/out and pan within a virtual trace buffer
• View multiple sensors simultaneously with variable sample rates
• Record and playback live sensor data streams
• Export recording to a spreadsheet for further analysis
• Graphical oxygen sensor monitoring and on-board test results
• I/M readiness. Metric and English units of measure
• Horsepower and torque measurements
• 0-60 time, 1/8 and 1/4 mile time and speed, MPG, and top speed

1 Preface
 • Supports Windows 98 and higher
• 1-year warranty

Minimum Platform and Software Requirements

You must have one of the following operating on your computer:
• Microsoft® Windows® XP (all editions, 32-bit and 64-bit)
• Microsoft® Windows® Vista (all editions, 32-bit and 64-bit)
• Microsoft® Windows® 7 (all editions, 32-bit and 64-bit)
Minimum hardware requirements:
• 128MB of RAM or higher

OBD II
OBD II stands for On-Board Diagnostics second generation. OBD II was incorporated on some
1994 and 1995 model-year vehicles and was required for all 1996-and-later vehicles.
OBD II is a series of government regulations intended to reduce in-use vehicle emissions by
continually monitoring for failure and/or deterioration of the powertrain and its emission-
control systems. A Malfunction Indicator Light (i.e. Check Engine light or Service Engine Soon
light) visible to the vehicle operator will be illuminated and a Diagnostic Trouble Code set
when either there is a failure of a monitored component/system or any of the sensed
parameters deteriorates such that the vehicle's emissions would exceed the relevant standard
by approximately 50 percent.
The OBD II standard makes the Auterra Dyno-Scan™ for Windows universal to all automobiles,
since all newer vehicles sold must conform to these government regulations.

OBD II Connector
OBD II compliant vehicles must have a 16-pin connector located in plain sight underneath the
dash near the driver’s seat (see Figure 1). Alternatively, it may be behind ashtrays or concealed
by an easily removed plastic cover, sometimes with the letters “OBD” stamped on the outside.
Some 1994 and 1995 vehicles have this connector and are only OBD I compliant. These OBD I
vehicles are not supported by the scan tool.

Figure 1: Vehicle OBD II Connector (Front View)

Specifications
The Dyno-Scan OBD II Adapter conforms to these specifications.

2 Preface
Table 1: Hardware Specifications
Vehicle Protocol Input: VPW, PWM, ISO, Keyword Protocol (KWP) 2000, and CAN bus.
External Power: None. Draws power from vehicle.
Weight: 4 oz
Dimensions (H x W x D): 3.5" x 1.75" x .875"
Temperature: 32° to 158° F (0° to 70° C) non-condensing

Supported Vehicles
Auterra Dyno-Scan™ for Windows supports all 1996 and newer vehicles, including American,
European, and Asian models. Some 1994 and 1995 vehicles are also supported with a sticker
under the hood indicating OBD II compliance. All vehicles sold in the US model year 1996 and
newer are OBD II compliant and do not require the under hood sticker.

Abbreviations
Some item descriptions are abbreviated within the software.
BX – designates a bank number (e.g. B1 means bank 1)
SX – designates a sensor number (e.g. S1 means sensor 1)
BX-SX – designates a bank-sensor combination (e.g. B1-S2 means bank 1 – sensor 2)

Abbreviations and Definitions

A/F – Air Fuel
A/T – Automatic Transmission
Check Engine Light – also known as a MIL (Malfunction Indicator) light.
CHT – Cylinder Head Temperature
Closed Loop – In closed loop operation the oxygen sensors are used to adjust the fuel
mixture. See open loop.
DTC – Diagnostic Trouble Code
Dyno - Dynamometer
EBCM – Electronic Brake Control Module
EBTCM – Electronic Brake Traction Control Module
ECU – Emission Control Unit (i.e. the vehicle’s on-board computer)
EGR – Exhaust Gas Recirculation
EFI – Electronic Fuel Injection
EMR – Electronic Module Retard
ESC – Electronic Spark Control

3 Preface
EST – Electronic Spark Timing
EVAP – Evaporative Emission
Fuel Trim – engine computer function that keeps the air/fuel mixture close to ideal.
HC – Hydrocarbons
HEI – High Energy Ignition
HO2S – Heated Oxygen Sensor
Horsepower – a unit of measure to express the rate at which mechanical energy is expended.
HP – Horsepower
M/T – Manual Transmission
MAF – Mass Air Flow
MIL – Malfunction Indicator Light (i.e. “Check Engine” or “Service Engine Soon” light on the
vehicle’s instrument panel).
NOx – Oxides of Nitrogen
O2 – Oxygen
Open Loop – used to describe the fuel mixture when the oxygen sensors are not being used,
usually when the engine is cold or if a malfunction preventing closed loop operation is
detected. See closed loop.
PCM – Power Control Module
PID – Parameter ID is a number used to designate a particular vehicle sensor.
PTO – Power Take-Off
RPM – Revolutions per Minute
SAE – Society of Automotive Engineers
Scan Tool – a computer that reads out OBD II values from the vehicle.
Service Engine Soon – also known as a MIL light.
SFI – Sequential Fuel Injection
TBI – Throttle Body Injection
TCM – Transmission Control Module
TCS – Traction Control Switch
TFT – Transmission Fluid Temperature
Torque - Torque is a measure of the force acting on an object causing that object to rotate.
TP – Throttle Position
TPS – Throttle Position Sensor

4 Preface
VAC – Vacuum
VIN – Vehicle Identification Number
VSS – Vehicle Speed Sensor

5 Preface
 CHAPTER 2
Installing Windows Software

Loading the Auterra Windows software onto your personal computer is easy. This section
shows you how.

Uninstall Previous Dyno-Scan for Windows

Auterra recommends uninstalling all previous versions of the Dyno-Scan for Windows
software, if any, before proceeding.
1 From the Start menu, select Settings > Control Panel.
2 Double-click on Add/Remove Programs.
3 Click the Install/Uninstall tab, if your Windows version includes it.
4 From the list of programs that you can remove, select Dyno-Scan for Windows.
5 Click Add/Remove.
6 At the prompt, click Yes to confirm that you want to remove the Dyno-Scan for Windows
program.
7 When the files are removed, the uninstall program indicates that the process is complete.

Software Installation (All Windows Versions)

1 Close all other programs and windows.
2 Insert the CD labeled Dyno-Scan for Windows into your CD-ROM drive.
3 The installation should start automatically. If not, from the Start menu select Run.
4 Type D:\setup (substitute the appropriate letter of your CD-ROM drive for D).
5 Follow the instructions on the screen.

USB Driver Installation

The A-302 Windows kit comes with USB OBD II adapter. This adapter requires installing a USB
driver. This section only applies to the USB version of the OBD II adapter, as shown in Figure 2:
USB OBD II Adapter.

6 Installing Windows Software

 Figure 2: USB OBD II Adapter
For Bluetooth OBD II adapter installations, skip to the Bluetooth Driver Installation section
below.

Windows Vista/7 USB Driver Installation

1 Do not plug in your Auterra USB OBD Adapter into your PC until after the Auterra Dyno-
Scan for Windows software is installed.
2 During Dyno-Scan for Windows software installation, the USB driver is installed
automatically. Just plug in the USB OBD II adapter and your device is ready for use.
If you experience problems installing the USB driver, see the “USB Driver
Installation.pdf” manual in the User Guide directory on the Auterra CD ROM.
3 Windows 7: To locate the COM port number, go to the Windows Start button > Devices
and Printers. In the Unspecified section, see the Dyno-Scan OBD II USB Adapter Port
(COMX), where COMX is the COM port to select within the Dyno-Scan software on the
Tools > Options menu dialog.

7 Installing Windows Software

 Windows Vista: To locate the COM port number, go to the Windows Start button >
Control Panel > System and Maintenance and click Device Manager. Expand the Ports
(COM & LPT) setting and see the Dyno-Scan OBD II USB Adapter Port (COMX) entry, where
COMX is the COM port to select within the Dyno-Scan software on the Tools > Options
menu dialog.

8 Installing Windows Software

Windows XP USB Driver Installation
1 Do not plug in your Auterra USB OBD Adapter into your PC until after the driver is
installed.
2 Start AuterraVCPInstaller.exe within the USB Driver directory located on the Auterra CD
ROM.
3 On Windows XP it may display a warning message. Press the Continue Anyway button.
With all other versions of Windows no warning dialog is displayed.

9 Installing Windows Software

4 Please wait a few minutes for the driver installation to complete. There will be no progress
dialog during installation.
5 Plug in the USB OBD II Adapter to your Windows PC. The Found New Hardware Wizard will
display.
6 On the Found New Hardware Wizard, select “Yes, this time only” and press Next.

10 Installing Windows Software

7 On the next dialog, select “Install the software automatically (Recommended).
The AuterraVCPInstaller.exe pre-installs the driver on your PC. Optionally, if you wanted
to install the driver directly from the Auterra CD ROM, select “Install from a list or specific
location (Advanced)” and then select a specific location on your computer (for instance
d:\USB Driver).

11 Installing Windows Software

8 On Windows XP, a warning dialog will appear. Press Continue Anyway. All other Windows
versions will not display a warning message.

12 Installing Windows Software

9 After the first driver installs, steps 7 though 9 will repeat again. There are two parts to the
driver and both must be installed.
10 The driver installation is complete.
If you experience problems installing the USB driver, see the “USB Driver
Installation.pdf” manual in the User Guide directory on the Auterra CD ROM.
11 To locate the COM port number, go to the Windows Start button > Control Panel > System
and Maintenance and click Device Manager. Expand the Ports (COM & LPT) setting and see
the Dyno-Scan OBD II USB Adapter Port (COMX) entry, where COMX is the COM port to
select within the Dyno-Scan software on the Tools > Options menu dialog.

Figure 3: Correct Installation of USB Driver

USB Driver Virtual COM Port

When the USB OBD II adapter is plugged into the PC, the driver will create a virtual COM port
and assign it a number. The Windows Device Manager shows all assigned port numbers. Open
Device Manager by doing the following:
1 Click on “Start” and then “Control Panel”.
2 Switch to Classic View (if in Category View).

13 Installing Windows Software

3 Double click on “System”.
4 Select the Hardware tab.
5 Press the “Device Manager” button.
6 Click on the “+” next to Port.
7 The entry labeled “Auterra USB OBD II Adapter” shows the virtual COM port for the USB
OBD II adapter. Physical COM ports are also shown if you are using a serial OBD II adapter.

Figure 4: Auterra USB OBD II Adapter COM Port

Bluetooth Driver Installation

The A-303 Windows kit comes with a Bluetooth OBD II adapter. Your PC may already be
equipped with a Bluetooth wireless adapter. If so, your PC should already have the driver
installed.
If your PC does not have a Bluetooth adapter, then a USB Bluetooth adapter (not included) will
add wireless capability to your PC. Follow the manufacturer instructions to install the USB
Bluetooth Adapter driver.

Figure 5: USB Bluetooth Adapter

14 Installing Windows Software

Bluetooth Pairing
The Bluetooth OBD II adapter must be paired with the Windows PC in order to communicate.
The high-level pairing process is as follows:
1 Plug the Bluetooth OBD II adapter into your vehicle’s OBD II connector.
2 Turn the vehicle ignition ON (the vehicle does not have to be running). The Bluetooth OBD
II adapter is now automatically placed into discovery mode.
3 Search for Bluetooth devices on your PC. The device name is RN42-nnnn (where nnnn is a
letter/number combination unique to each Bluetooth OBD II adapter).
4 Pair the Bluetooth OBD II adapter with the PC. The passkey (or pairing key) is: 1234
5 A serial over Bluetooth link is added to your PC and one or more COM ports assigned (e.g.
COM5). The Windows Device Manager will show the COM ports assigned under the “Ports
(COM & LPT)” section.
6 In you’re My Bluetooth Places you may need to right mouse click on the RN42 device and
select Connect from the shortcut menu.
7 Select the Tools > Find OBD II Adapter menu option in the Auterra Dyno-Scan for Windows
software to automatically detect the OBD II adapter.
8 Your OBD II adapter is connected and ready for use.
The sections below offer detailed instructions. Your PC screens may be slightly different
depending on your Bluetooth driver and ‘Windows operating system.

Windows XP
1 Plug the Bluetooth OBD II adapter into your vehicle’s OBD II connector.
2 Turn the vehicle ignition ON (the vehicle does not have to be running). The Bluetooth OBD
II adapter is now automatically placed into discovery mode.
3 Select Windows Start > My Bluetooth Places.
4 Select Bluetooth > Search For Devices. Follow the on-screen setup steps.

15 Installing Windows Software

16 Installing Windows Software
5 In My Bluetooth Places you may need to right mouse click on the RN42 device and select
Connect from the shortcut menu.

6 Select the Tools > Find OBD II Adapter menu option in the Auterra Dyno-Scan for Windows
software to automatically detect the OBD II adapter.
7 Your OBD II adapter is connected and ready for use.

Windows Vista
1 Plug the Bluetooth OBD II adapter into your vehicle’s OBD II connector.
2 Turn the vehicle ignition ON (the vehicle does not have to be running). The Bluetooth OBD
II adapter is now automatically placed into discovery mode.
3 Select Windows Start > Control Panel and double click Bluetooth Devices.
4 Select the Options tab.

17 Installing Windows Software

5 Place a checkmark next to "Allow Bluetooth devices to find this computer" under the
Discovery heading.
6 Place a checkmark next to "Allow Bluetooth devices to connect to this computer" and
"Alert me when a new Bluetooth device wants to connect" under the Connections
heading.
7 Click Apply.
8 Select the Devices tab, and then click Add.
9 Follow the on-screen instructions to complete pairing.
10 Select the Tools > Find OBD II Adapter menu option in the Auterra Dyno-Scan for Windows
software to automatically detect the OBD II adapter.
11 Your OBD II adapter is connected and ready for use.

Windows 7
1 Plug the Bluetooth OBD II adapter into your vehicle’s OBD II connector.
2 Turn the vehicle ignition ON (the vehicle does not have to be running). The Bluetooth OBD
II adapter is now automatically placed into discovery mode.
3 Select Windows Start > Control Panel > Hardware and Sound then Bluetooth Devices.

4 Click Add, and then follow the on-screen instructions.

18 Installing Windows Software

19 Installing Windows Software
5 Select the Tools > Find OBD II Adapter menu option in the Auterra Dyno-Scan for Windows
software to automatically detect the OBD II adapter.
6 Your OBD II adapter is connected and ready for use.

Software Updates
Check the Auterra website periodically to download software updates at
www.auterraweb.com.

20 Installing Windows Software

 CHAPTER 3
Connections

Connecting your Auterra Dyno-Scan™ for Windows to the vehicle is easy. This section shows
you how.

Connect your Dyno-Scan™ to the Personal Computer

A Plug the USB cable into the personal computer’s USB port (not applicable if using the
Bluetooth OBD II adapter).

B Connect the USB cable to the OBD II adapter (not applicable if using the Bluetooth OBD II
adapter).

C Connect the OBD II cable to the OBD II adapter and tighten the two thumbscrews.

Figure 6: Dyno-Scan™ Connections

Connect the Dyno-Scan™ to your Vehicle

Locate the OBD II connector on the vehicle. The 16-pin connector is usually located in plain
sight underneath the dash near the driver’s seat (see Figure 1). It may also be behind ashtrays.
Connect the male OBD II Cable connector to the vehicle’s female OBD II connector. Ensure the
connectors are fully engaged.

21 Connections
Select COM Port
1 Start the Dyno-Scan application.
2 Plug the OBD II adapter into the vehicle’s OBD II port.
3 If using the USB OBD II adapter, plug the USB cable into the PC.
4 Turn the vehicle ignition ON (vehicle does not have to be running).
5 Select the Tools > Find OBD II Adapter… menu option. The software will automatically
detect USB and Bluetooth adapter and set the COM port.
6 Alternatively, select the Tools > Options… menu selection.
7 On the Options dialog, select the COM port that the scan tool is connected to. The COM
port dropdown list only shows COM ports installed on your computer. Refer to section USB
Driver Virtual COM Port for information on displaying COM port numbers within Windows
Device Manager.
8 Press the OK button.
Your Dyno-Scan for Windows scan tool is setup and ready for use.
If you are having trouble setting the correct COM port, please refer to sections USB Driver
Installation or Bluetooth Driver Installation depending on your OBD II adapter type.
See the section Troubleshooting for more troubleshooting tips.

22 Connections
 CHAPTER 4
Dyno-Scan Basics

Getting started with your Dyno-Scan for Windows software is easy, and this section shows you
how.
To connect to your vehicle, press the Connect button on the toolbar. Then press the “Connect
to Vehicle” button on the Connect dialog. After a few seconds the scan tool will be connected
to the vehicle. If the scan tool fails to connect, see Troubleshooting on page 102.

Figure 7: Connect Dialog

The Navigation pane is vertically docked on the far left of the screen. The Navigation pane is
used to switch between the main screens. Just click an icon, such as Live Data, to change
screens.
The Navigation pane sorts the main screens by category: Scan Tool, Dyno and Analyze. Mouse
click a category on the Navigation pane and new category icons are displayed.
A right mouse click brings up a shortcut menu on many screen elements. On the Live Data
screen, right mouse click in the middle of a Graph or List pane and select “Edit Parameters” to
monitor live sensor data. Alternatively, left mouse click the Options dropdown button located
on the right side of the pane title bar.

23 Dyno-Scan Basics
 Figure 8: Right Mouse Click Shortcut Menu
If you close all of the Live Data Graph and List panes, the screen is blank. To add panes again,
just right mouse click in the middle of the screen and select “Add List Pane” or “Add Graph
Pane” and a new pane will be displayed.

Figure 9: Live Data Screen Highlighted Features

Not every screen is supported by every vehicle. For instance, some vehicles will not support
the Oxygen Sensors screen. If a screen is blank or shows no data, then the vehicle doesn’t
support that particular scan tool feature.
The Analyze Live Data screen only displays data if you either record data or open a previously
recorded live data file. For instance, select File > Open > Live Data File… and select a file to
open. Data will then be displayed on the Analyze Live Data screen.
Left mouse click the Options button on the Analyze Live Data pane title bar to display a
shortcut menu of options. Right mouse click on any graphical element on this screen to
display a shortcut menu of options. For instance, right mouse click an x or y axis for options.

24 Dyno-Scan Basics
Hold the left mouse button down and drag to move the axis data. Hold the Ctrl keyboard key
and mouse drag an axis to zoom in and out.

Figure 10: Analyze Live Data Screen

If you close any of the docking windows such as Navigation or File Properties, you can display
them again on the View menu (e.g. View > Navigation).

Options Dialog
The Reload last user parameters when starting program setting, when checked, restores all
user parameters to their last known state. Otherwise, the program’s default parameters are
used.
The COM Port setting on the General tab selects the personal computer COM port to use.
Make sure the selected COM port matches the one the OBDII’s adapter has been plugged into.
The Default Units of Measure setting changes between English or Metric units. Not all
sensors use English units of measure, in which case the Metric units are used.
The Fast Sampling option on the General tab enables a faster than normal sampling
frequency on some vehicles. If you notice on some vehicles that the live sensor monitoring
doesn’t function or the sensor measurements update sporadically, disable this feature.
The CAN 6x Communication options enables or disables the high-speed six-samples-per-
query communication mode. Normally, one sensor at a time is polled from the vehicle. If the

25 Dyno-Scan Basics
vehicle supports CAN bus, then the vehicle may support polling up to six parameters at once
speeding the transfer of data.
The MPG Correction applies a percent correction factor to all Instant Economy, Average
Economy and Fuel Used parameters. This correction is used to fine-tune the fuel economy
measurements.
The Distance Correction applies a percent correction factor to the Distanced Traveled live
data parameter.
The Vehicle Speed Correction preference adjusts the vehicle speed sensor readings to
accommodate a vehicle with an inaccurate speedometer. This is a global setting and adjusts
the vehicle speed measurements on all screens displaying or using live data such as Live Data,
Gear Ratio and Acceleration. The vehicle speed correction preference does not adjust the
vehicle dashboard speedometer nor does it calibrate the vehicle speedometer.
The Boost Calibration value is subtracted from all Boost Pressure readings in order to adjust
the Boost Pressure measurements from absolute pressure to a gauge pressure. The Boost
Calibration entered is the atmospheric pressure in psi (pounds per square inch). To get
atmospheric pressure using your vehicle, enter a Boost Calibration value of 0.0% and view the
Boost Pressure parameter on the Live Data screen with the engine off. The Boost Pressure
reading with a 0.0% calibration is the value to enter into the Boost Calibration box.
The Engine Size preference is used in the following parameters: Instant Economy 2, Average
Economy 2, Fuel Used 2 and Air Flow Rate From MAP. Ensure you enter an accurate engine
size (in liters) if you use these parameters.
The Fuel Type preference is used to adjust the fuel economy-related parameters. Ensure you
enter the correct fuel type: gas or diesel.
The Fuel Cost preference is used to enter the cost per gallon of fuel currently in the vehicle
gas tank. This value is used to compute the Fuel Cost live data parameter. If the Units of
Measure is Metric, the value is the cost per liter.
The Reset Defaults button sets all settings back to their default state.

26 Dyno-Scan Basics
 Figure 11: Options Dialog, General Tab
The View tab allows customization of the Font, Font Style, Font Color, and Font Size settings
used in all grid displays.

27 Dyno-Scan Basics
 Figure 12: Options Dialog, View Tab

Vehicle Speed Correction

The vehicle speed correction preference adjusts the vehicle speed sensor readings to
accommodate a vehicle with an inaccurate speedometer. This is a global setting and adjusts
the vehicle speed measurements on all screens displaying of using live data.
The vehicle speed correction preference does not adjust the vehicle dashboard speedometer
nor does it calibrate the vehicle speedometer.
If you vehicle is equipped with a stock tire size you leave this setting at 0.0%.
Always compute and adjust the vehicle speed correction first before measuring and adjusting
the distance correction or MPG correction.
To compute and adjust the vehicle speed correction factor using is GPS:
7 Set Vehicle Speed Correction to 0.
8 Select the Live Data screen and monitor the Vehicle Speed parameter.
9 Drive the vehicle and keep the vehicle speed stead (e.g. 30 MPH).
10 Have a passenger note the Dyno-Scan Vehicle Speed and the GPS speed.
11 Compute an error percentage:
vehicle speed correction = ((GPS speed – Dyno-Scan vehicle speed ) / GPS speed) x 100
Example:
7.3% = ((30.0 MPH – 27.8 MPH) / 30.0 MPH) x 100
12 Set the Vehicle Speed Correction to the computed correction factor.

28 Dyno-Scan Basics
Distance Correction
The distance correction preference fine-tunes the accuracy of the Distance Traveled
parameter, if necessary.
The distance correction preference does not adjust the vehicle odometer nor does it calibrate
the vehicle speedometer.
The Distance Traveled parameter is used within the Instant MPG and Average MPG parameter
computations. Therefore, an accurate Distance Traveled parameter ensures greatest accuracy
of these parameters.
To compute and adjust the distance correction preference using your vehicle odometer:
1 Set the Distance Correction to 0.
2 Go to the Live Data screen and monitor the Distance Traveled parameter.
3 Drive the vehicle for 25 to 50 miles.
4 Compare the Dyno-Scan trip computer Distance Traveled value and the vehicle’s
odometer mileage. Compute an error percentage:
distance correction = ((odometer distance – Dyno-Scan distance ) / odometer distance) x 100
Example:
3.3% = ((27.5 miles – 26.6 miles) / 27.5 miles) x 100
5 Set the Distance Correction to the computed correction factor.
Alternatively a GPS may be used in place of the odometer in the above procedure if the
vehicle speedometer is not accurate.

MPG Correction
The MPG correction preference fine-tunes the accuracy of the Instant MPG, Average MPG and
Fuel Used parameters due to different fuels or minor vehicle sensor variances.
The MPG correction preference does not adjust the amount of fuel used by the vehicle.
Always compute and adjust the distance correction first before measuring and adjusting MPG
correction.
To compute and adjust the MPG correction preference:
1 Set the MPG Correction to 0.
2 Fill up your vehicle gas tank.
3 On the Tools > Options menu press the Reset Fuel Used button then press OK.
4 Go to the Live Data screen and monitor the Fuel Used parameter.
5 Drive the vehicle normally until the tank is near empty. Always have the Average Fuel
Economy screen displayed when driving the vehicle.
6 Fill up the vehicle and note the gallons used to fill up the vehicle.

29 Dyno-Scan Basics
7 Compute the error in the Dyno-Scan Fuel Used parameter and the gallons used to fill up
the gas tank.
MPG correction = ((Dyno-Scan fuel used - gas pump gallons) / gas pump gallons) x 100
Example:
-1.2% = ((25.3 gallons – 25.6 gallons) / 25.6 gallons) x 100
8 Set the MPG Correction to the computed correction factor.

Boost Calibration
Two different methods are used for expressing pressure: gauge pressure and absolute
pressure. Gauge pressure is referenced to atmospheric pressure. The atmospheric pressure at
sea level is about 14.7psi and changes slightly with atmospheric conditions. Absolute pressure
is referenced to 0psi. The relationship between the pressures can be expressed as follows:
absolute pressure = gauge pressure + atmospheric pressure
The Boost Pressure parameter measures the absolute pressure within the vehicle’s intake
manifold. To measure gauge pressure, enter a Boost Calibration offset. Gauge pressure can be
expressed as follows:
gauge pressure = absolute pressure – atmospheric pressure
The Boost Calibration allows entering the atmospheric pressure, in psi, such that a gauge
pressure reading may be obtained.
boost pressure = absolute pressure – Boost Calibration
Two factors affect the Boost Calibration accuracy: weather conditions and elevation changes,
the later being more significant. Enter a new Boost Calibration for the most accurate gauge
pressure measurements.
The boost calibration does not adjust the turbo boost pressure of the vehicle.
To compute a Boost Calibration correction factor:
1 Connect Dyno-Scan to your vehicle.
2 Ensure your vehicle is not running.
3 Select the Boost Calibration option to 0.
4 Go to the Live Data screen and monitor the Boost Pressure parameter.
5 The Boost Pressure parameter will display. This is your Boost Calibration correction factor.
With the Boost Calibration preference at 0 and the vehicle off, the Boost Pressure value
shown is atmospheric pressure.
6 Set the Boost Calibration to the value measured above.

30 Dyno-Scan Basics
Engine Size
The Engine Size preference is used in the following parameters: Instant Economy 2, Average
Economy 2, Fuel Used 2 and Air Flow Rate From MAP. Ensure you enter an accurate engine
size (in liters) if you use these parameters.

Fuel Type
The Fuel Type preference is used to adjust the fuel economy-related parameters. Ensure you
enter the correct fuel type: gas or diesel.

Fuel Cost
The Fuel Cost preference is used to enter the cost per gallon of the fuel currently in the vehicle
gas tank. This value is used to correctly display the Fuel Cost live data parameter. If the Units
of Measure is set to Metric, the Fuel Cost is the cost per liter.

Dyno-Scan File Types

The software uses four data file types with five different file extensions. Each file type can be
created using the File > New menu option.
Table 2: File Types
File Type File Description
Extension
Live Data File .ld Live data files store live parameter recordings.
Power Torque File .pt Stores power torque run data.
Acceleration File .ac Stores acceleration run data.
Dyno Setup File .ds Stores vehicle and environmental setup information.
DashDyno Alarm File .al An alarm file used on the DashDyno to illuminate LED
lights when sensor limits are exceeded.

Create New Files

Create files from the File > New menu option.
To create a new Live Data file:
1 Select the File > New > Live Data File… menu option.
2 On the New Live Data File dialog, select a directory and enter a file name in the File name
box.
3 Press the Save button.
4 The live data file is now ready for recording. See Record/Playback on page 46 for
information on recording live data.
To create a new Dyno Setup File:
1 Select the File > New > Dyno Setup File… menu option.

31 Dyno-Scan Basics
2 On the New Dyno Setup File dialog, select a directory and enter a file name in the File
name box.
3 Select the View > Dyno Setup Properties menu option.
4 In the Dyno Setup Properties docking window, enter each value. For instance, click the
1000 next to Elevation and type in a new value. The file is automatically saved each time a
value is changed.

See Dyno Setup File Properties on page 72 for information about the Dyno Setup File values.
The Power Torque and Acceleration files are created in the same way. See Dynamometer
Getting Started on page 76 for information on how to create and record Power Torque and
Acceleration files.

DashDyno Files
The DashDyno SPD shares the same file format with the Dyno-Scan for Windows software. Any
file created within the Windows software can be opened on DashDyno.
Creating a file on a Windows PC and copying it to the DashDyno SD card can sometimes be
more convenient than creating the file directly on the DashDyno handheld.
To create a DashDyno Alarm File:
1 Select the File > New > DashDyno Alarm File… menu option.
2 On the New DashDyno Alarm File select the Alarm LEDs tab.

32 Dyno-Scan Basics
3 Set the values for one or more alarm parameters. See the DashDyno SPD user guide
Alarms section for information on the Parameter, Alarm Threshold, Set Alarm When and
Alarm Action options.
4 Press the File Name button.
5 On the New DashDyno Alarm File Name dialog, enter a directory and name of the file.
6 Press the Save button.
7 Press the Create File button.
8 Locate the file you created and copy it to the ALARM directory on the DashDyno SD card.
9 The alarm file is now ready for use on your DashDyno. See the DashDyno SPD user guide
for information on how to use an alarm file.
The Shift Alarm tab allows creating a shift light with three RPM levels, one for each LED: green,
yellow, and red. When the RPM exceeds the RPM set by the red level, all the LEDs lights will
flash in unison indicating it is time to shift.

Docking Windows
The program contains four docking windows: Navigation, File Properties, Run Statistics, and
Dyno Setup Properties. Each docking Windows may be resized, hidden, or slide-in or slide-out
from a docked position on demand.

33 Dyno-Scan Basics
 Figure 13: Floating Toolbars and Property Windows
• To hide a docking window, click the red X close button in the upper right corner.
• To hide a docking window with slide-in, press the pushpin icon in the upper right
corner. The window will slide in and hide itself.
• To show a hidden docking window, select the View menu option (e.g. View >
Navigation).
• To show a docking window with slide-out, hover the mouse button over the docked
window name or icon. The window will slide out showing itself.
• If a docking window is not visible, the View menu option will redisplay any of the four
windows.
• To move a docking window from dock to float, either drag window title bar to a new
location or double click the title bar.
• To move a docking window from float to dock, either drag the window title bar to one
of the four window edges (top, bottom, left, right) or double click the title bar.

Properties Windows
Properties values are shown in certain docking windows, such as the Dyno Setup Properties as
shown below.

34 Dyno-Scan Basics
 Figure 14: Dyno Setup Properties Docking Window
All property windows share the same behavioral traits, such as:
• Properties displayed in bold font may be modified.
• Properties display in grey font cannot be changed.
• Any property changes are immediately saved to disk.
To change a property value, click the parameter and type in a new value. The change is
immediately saved to disk.

Navigation Docking Window

The Navigation docking window is used to switch main screen.

35 Dyno-Scan Basics
 Figure 15: Navigation Docking Window
To switch screens, perform these steps:
1 Click one of main group buttons.
2 Click an item icon from within that group.
For instance, to select the Acceleration screen, select the Dyno group then click the
Acceleration icon.

File Properties Docking Window

Live Data, Power Torque, and Acceleration files properties are viewed and changed from the
File Properties docking window.

36 Dyno-Scan Basics
 Figure 16: File Properties Docking Window
The File Properties docking window shows different properties depending on the active
screen.
Table 3: File Properties Displayed
Active Screen File Properties Displayed
Live Data Live Data file
Power Torque Power Torque file
Acceleration Acceleration file
All other screens No properties are displayed

For instance, to view Live Data file properties within the File Properties docking window, select
the File > Open > Live Data File… menu option to open a file then switch to the Live Data
screen.

Dyno Setup Properties Docking Window

The Dyno Setup file properties are viewed and changed from the Dyno Setup Properties
docking window.

37 Dyno-Scan Basics
 Figure 17: Dyno Setup Properties Docking Window
To view Dyno Setup file within the Dyno Setup Properties docking window, select the File >
Open > Dyno Setup File… menu option to open a file.

Run Statistics Docking Window

The Run Statistics docking window shows statistical values for Power Torque and Acceleration
curves, such as maximum horsepower or top speed.

Figure 18: Run Statistics Docking Window

For instance, to view Power Torque statistics within the Run Statistics docking window, select
the File > Open > Power Torque File… menu option to open the file then switch to the Power
Torque screen.

38 Dyno-Scan Basics
Toolbars
Toolbar locations, docking position, buttons shown, and sizes are completely user
customizable. Each time you start the program; the toolbar settings and position is restored if
the “Restore last user parameters when starting program” option is selected (see Options
Dialog).
• To move a docked toolbar, left mouse click and drag the vertical dashed line on a
toolbar. Alternatively, double click the dashed line to move the toolbar into a floating
position.

• To move a floating toolbar, left mouse click the title bar and drag to its new location.
Alternatively, double click the title bar to put the toolbar back into its docked position.

• To move toolbar to a new docked location, left mouse click and drag the toolbar to a
new edge of the screen. The toolbar can be docked to any of the four application
window edges (top, bottom, left, right).
• To customize the buttons shown on the toolbar, click the down arrow located on a
docked toolbar to show a toolbar shortcut menu. Alternatively, right mouse click on
any blank location within the toolbar area to show the shortcut menu.

• To change to change various toolbar and menu options, such as enable/disable

toolbars or change the icons from large to small, select the toolbar shortcut menu
then select the Customize… option.

39 Dyno-Scan Basics
 Figure 19: Customize Toolbars and Menus Dialog

Status Bar
The status bar is located at the bottom of the program screen. It displays the following
information from left to right:
Vehicle Connection Status – either Connected or Not Connected
Connection Type – the vehicle hardware protocol connection type. For instance,
PWM, VPW, CAN, ISO, or KWP.
Data Mode – either Live or Play. Live mode means the data is originating from the
vehicle. Play mode means the data is originating or recording to/from a file.
Playback Percentage Bar Graph – the current playback file position as a percent.
Open Live Data File – currently open Live Data file.
Open Power Torque File – currently open Power Torque file.
Open Acceleration File – currently open Acceleration file.

40 Dyno-Scan Basics
 CHAPTER 5
Scan Tool Operation

The Dyno-Scan™ software is designed for easy operation. This section shows how to operate
the software and describes the features on each screen.
Not every vehicle is equipped with all sensor types supported by the scan tool. Therefore, the
scan tool interrogates the vehicle and creates a custom list of sensors and options unique to
the vehicle connected.

Ensure the PC, cable, and OBD II adapter do not Interfere with the vehicle
controls. A cable dangling in front of the foot pedals, gear shifter, or steering wheel
can interferer with vehicle operation and cause a fatal accident. Always ensure the
PC, cable, and OBD II adapter are securely fastened out of the way. If the scan tool
and PC cannot be safely attached as to not interfere with the vehicle controls, then
do not drive the vehicle with the OBD II adapter connected to the vehicle.

Connect Scan Tool to Vehicle

The scan tool must be connected to the vehicle’s diagnostic connector, except in
demonstration mode where the vehicle data is simulated. See Demo Mode for more
information about the demo mode.
1 Turn the vehicle ignition off.
2 Connect the OBD II cable to the vehicle’s OBDII connector. Normally the vehicle connector
is located under the dash on the driver’s side in plain sight.
3 Turn the vehicle’s ignition on. Vehicle does not have to be running. For engine running
tests, the vehicle can be started and idling.

Do not operate the vehicle indoors. A running engine produces lethal carbon
monoxide exhaust fumes that can seriously harm or kill you if inhaled. Only run the
vehicle motor outdoors with proper ventilation.

Start Dyno-Scan™ Software

1 Start the Dyno-Scan™ software on the personal computer by double-clicking Dyno-Scan
icon located your desktop. You can also start the software in different languages by
selecting the Windows start button > Dyno-Scan > Español > Dyno-Scan.
2 Once the software has started, select the File > Connect menu option.

41 Scan Tool Operation

3 On the Connect dialog, press the “Connect to Vehicle” button to connect to the vehicle.
Selecting the Connect to Vehicle Demo checkbox to enable Demo mode see Demo Mode.

Figure 20: Connect Dialog

4 After a few seconds, the scan tool will detect the vehicle.

Enhanced OBD II
The scan tool supports optional enhanced OBD II upgrades. These upgrades can be purchased
separately for certain makes of vehicle, like Ford, GM, Toyota and others. The enhanced
features allow access to other vehicle systems like ABS, airbag (SRS), and others.
A Product Key is purchased to unlock these features. Once the Product Key is obtained, it is
entered into the Help > Product Registration Keys menu option.
If you want to see what enhanced OBD II vehicles systems are supported before purchasing an
enhanced upgrade, select a different make on the Vehicle Connection Type dropdown on the
Connect dialog, and then press Connect to Vehicle. The software will detect the enhanced
systems available on your vehicle such as ABS or airbag.
Note the following when detecting enhanced OBD II vehicle systems:
1. Upgrade to the latest Dyno-Scan for Windows software by download the upgrade
from the Auterra web site (www.auterraweb.com).
2. If you have an older OBD II adapter version, an adapter firmware update or new OBD II
adapter may be required before all available vehicle systems are detected. Please
contact Auterra for upgrade options available.

General Information Screen

The General Information screen contains two panes: Vehicle Monitor Test Status and Vehicle
Information.

42 Scan Tool Operation

 Figure 21: General Systems Screen
The Vehicle Monitor Test Status pane shows the status of the vehicle’s built-in readiness
monitor tests. Test statuses are either Complete or Incomplete. Other bit-encoded information
is also displayed on this screen like fuel system status. Click on a column header to sort the
parameters ascending alphabetically. Click the header again and it sorts descending.
The software continually queries the vehicle to display current values on the Vehicle Monitor
Test Status pane.
The Vehicle Information pane shows vehicle specific information such as Vehicle Identification
Number (VIN), Calibration IDs and Performance Tracking counters.

Diagnostic Trouble Codes Screen

The Diagnostic Trouble Codes screen has three panes: Stored Diagnostic Trouble Codes,
Pending Diagnostic Trouble Codes, and Freeze Frame.

43 Scan Tool Operation

 Figure 22: Trouble Codes Screen

Stored and Pending Diagnostic Trouble Codes Pane

The Stored and Pending Diagnostic Trouble Codes panes display the vehicle’s pending and
stored Diagnostic Trouble Codes (DTC), if any. The Diagnostic Trouble Codes screen
continually scans for new DTCs, even if some DTCs are already shown.
All DTCs are displayed within 10 to 20 seconds. If the vehicle’s Check Engine or Service Engine
Soon light on the instrument panel is illuminated, a stored DTC will be displayed. Pending
DTCs do not necessarily indicate a faulty component/system. If the vehicle’s test results
indicate a failure after additional driving, then the Check Engine light is illuminated and a DTC
is set in the stored DTC pane.
Two categories of trouble codes exist: generic and enhanced. Generic codes are standardized
and common to all vehicle manufacturers. Enhanced codes are not uniquely defined and may
overlap with another manufacture, or even the same manufacturer. For instance, multiple
definitions may exist for code P1234. Ford may define it as “Engine Oil Pressure Too Low”, but
Toyota’s definition could mean something different like “System Voltage Unstable”. The
Diagnostic Trouble Codes screen reads and clears both generic and enhanced codes.
There are four types of trouble codes: P (Powertrain), B (Body), C (Chassis), and U (Network
Communication). The scan tool reads and clears all P-codes and, depending on the vehicle, B,
C, and U-codes as well1.

1
Not all vehicles support retrieving and clearing B, C, and U-codes.

44 Scan Tool Operation

1 Switch to the Diagnostic Trouble Codes screen as described in the section Navigation
Docking Window.
2 If the vehicle has detected a Diagnostic Trouble Code(s) (DTC) they are listed in either the
Stored or Pending Diagnostic Trouble Codes pane. Not all Diagnostic Trouble Codes cause
the MIL light (i.e. Check Engine) to illuminate.
3 If the MIL light is on (Check Engine), the Diagnostic Trouble Code that caused the light to
illuminate is marked with a Yes in the “DTC Caused MIL” column. The Freeze Frame pane
will contain a snapshot of a variety of sensor values at the time the error occurred (see
Freeze Frame ). Useful for diagnosing operating parameters of the vehicle at the time the
MIL occured.
4 If you wish to clear the MIL, select the Tools > Clear DTCs… menu option to clear all DTCs
from the vehicle’s memory. Wait a few seconds after pressing Yes on the Clear Trouble
Codes dialog for the scan tool to complete the clear command.
5 Pressing Yes will clear the DTC from vehicle memory. Once cleared, the error codes cannot
be recovered. Clearing also extinguishes the vehicle’s MIL (i.e. Check Engine) light and
erases the vehicle’s freeze frame log. Sometimes the vehicle’s ignition must be turned off
and on again before the Check Engine light turns off.

Figure 23: Clear Trouble Codes

6 Tapping the ‘+’ icon next a trouble code number will expand out the possible DTC textual
descriptions. The software may not contain a description for every possible trouble code. If
the software cannot find a description, please refer to your vehicle’s repair manual. See
Diagnostic Trouble Codes for more information.

Freeze Frame Pane

The Freeze Frame pane displays the vehicle freeze frame log. Select the sensor units of
measure, either English or Metric, using the Preferences screen (see Options Dialog). When a
Diagnostic Trouble Code occurs that illuminates the Check Engine light, the vehicle’s
computer saves the current values of the vehicle’s sensors at the instant the error occurred. If a
freeze frame exists, it will display within a few seconds. Each vehicle supports a different
complement of sensors. The Freeze Frame pane displays only sensors appropriate for the
vehicle under test. This pane remains blank if no freeze frame information is available from the
vehicle.

45 Scan Tool Operation

Record/Playback
The Live Data screen can record and playback live sensor data. The recording and playback is
controlled from the Playback menu option.
The Record/Playback settings are:
Live – display live data as it is occurring.
Play – playback a previously recorded file.
Stop – stop a playing file.
Record – start recording live data.
Pause – pause a file during playback.
The Live Data panes have two modes of operation: Live and Play. When the Playback control is
set to Live, all displayed parameters are live from the vehicle. If the Playback control is set to
Play, Pause, Stop, or Record the scan tool is in the Play mode (see Status Bar).
The recorded data is saved in a Live Data file. The Live Data files are open and created from the
File > New and File > Open menu options.
Once a file is open, selecting Record saves the data into the currently opened file. Similarly,
Play plays back the currently opened file.
New vehicle parameters are selected while in Live mode. Once the mode has switched to Play
mode, new parameters cannot be added; always switch to Live mode to add/remove
parameters via the Parameter Edit dialog.
The playback speed does not use the same time-base as the original recording. Therefore,
playback will be faster than when recorded. This makes it easier to review long recorded files.
Playback position is controlled using the Playback > Set Playback Position control. 0% is the
beginning of the file and 100% is the end.

Figure 24: Set Playback Position Dialog

A Live Data file saves a list of parameters recorded. The Parameter Edit dialog shows recorded
parameters in the Parameter list box and the word “Play” is displayed as the Module. The
Sample Speed control is hidden when in play mode. See Edit Parameters Dialog for more
information.
To record live data:
1 Switch to the Live Data screen as described in the section Navigation Docking Window.

46 Scan Tool Operation

2 Ensure the Playback mode is set to Live by selecting the Playback > Live menu option.
3 Create a new Live Data file by selecting File > New > Live Data File…
4 Enter a file name, and press Open.
5 Press the Options label in the upper right corner of the Graph pane. Alternatively, right
mouse click anywhere in the Graph pane. Select the Edit Parameters menu option.
6 Press the Add Parameter button.
7 Select a sensor from the ECU Parameter box located on the right side of the dialog.
8 Press OK.
9 Select the Playback > Record menu option to start recording.
10 Select the Playback > Stop menu option to stop recording.
11 Select the Playback > Play menu option to playback the previously recorded file.

Edit Parameters Dialog

The Edit Parameters dialog selects a parameter to monitor, record, or playback.

Figure 25: Parameter Edit Dialog

Not every vehicle is equipped will all sensor types and not every vehicle supports every
parameter type. Therefore, the software interrogates the vehicle and creates a custom,
alphabetical listing of the parameters unique to the vehicle and module selected.

47 Scan Tool Operation

 Sample Speed – selects the sampling speed for the sensor. High samples at up to
40mS2, Med is about 3 seconds, and Low is about every 10 seconds per sample.
Units of Measure – selects the units of measure for the sensor reading, either English
or Metric.
Parameters – selects the vehicle parameter to monitor. The list of sensors is
dynamically created depending on the types of sensors supported by the vehicle.

Add and Remove Parameters

To add a Parameter, follow these steps:
1 Switch to the Live Data screen as described in the section Navigation Docking Window.
2 Press the Options button in the upper right corner of the Graph pane. Alternatively, right
mouse click anywhere in the Graph pane. Select the Edit Parameters menu option.
3 Press Add Parameter.
4 Select the Sampling Speed desired.
5 Select the Units of Measure to display.
6 Select the parameter to monitor within the ECU Parameters list box.
7 Repeat the above process to add more parameters.
8 Press OK.
To remove a Parameter, follow these steps:
1 Select the parameter to remove in the Parameter list.
2 Press the Remove Parameter button.
3 Repeat the above process to remove more parameters.
4 Press OK.

Supported Parameters
The following is a list of all the live parameters supported by the software and a brief
description of each parameter. Other non-live parameters, such as statuses or test results, are
not listed here.
Each parameter name ending with a number (e.g. “Average Economy 2”) provides the same
data value as the non-numeric ending parameter. The distinction is the same parameter is
obtained in different ways.
Not every vehicle supports all parameters. A custom list of parameters is created unique to the
vehicle connected.

2
Actual sampling speed is vehicle dependant.

48 Scan Tool Operation

Parameter Parameter Parameter
Average Economy EGR Temperature B2-S2 O2 B1-S2 Wide Range V
Average Speed Engine Coolant Temp O2 B1-S3 Wide Range mA
Battery Voltage Engine Coolant Temp 1 O2 B1-S3 Wide Range V
Boost Pressure Engine Coolant Temp 2 O2 B1-S4 Wide Range mA
Digital In 1 Engine Fuel Rate O2 B1-S4 Wide Range V
Distance Traveled Engine Oil Temp O2 B2-S1 Wide Range mA
Drive Time Engine Reference Torque O2 B2-S1 Wide Range V
Fuel Cost Engine RPM O2 B2-S2 Wide Range mA
Fuel Rate Engine Torque Idle Point 1 O2 B2-S2 Wide Range V
Fuel Used Engine Torque Point 2 O2 B2-S3 Wide Range mA
Idle Percent Engine Torque Point 3 O2 B2-S3 Wide Range V
Idle Time Engine Torque Point 4 O2 B2-S4 Wide Range mA
Instant Economy Engine Torque Point 5 O2 B2-S4 Wide Range V
Absolute Evap Vapor Pres Equivalence Ratio B1-S1 O2 Sensor B1-S1
Absolute Load Value Equivalence Ratio B1-S1 2 O2 Sensor B1-S2
Absolute Throttle Pos B Equivalence Ratio B1-S2 O2 Sensor B1-S3
Absolute Throttle Pos C Equivalence Ratio B1-S2 2 O2 Sensor B1-S4
Absolute Throttle Position Equivalence Ratio B1-S3 O2 Sensor B2-S1
Accelerator Pedal Pos D Equivalence Ratio B1-S3 2 O2 Sensor B2-S2
Accelerator Pedal Pos E Equivalence Ratio B1-S4 O2 Sensor B2-S3
Accelerator Pedal Pos F Equivalence Ratio B1-S4 2 O2 Sensor B2-S4
Actual EGR A Duty Equivalence Ratio B2-S1 PM Mass Concentrate B1-S1
Actual EGR B Duty Equivalence Ratio B2-S1 2 PM Mass Concentrate B2-S1
Actual Engine Torque Equivalence Ratio B2-S2 Reagent Tank Level
Air Flow Rate From MAF Equivalence Ratio B2-S2 2 Rel Throttle A Position
Alcohol Fuel Percentage Equivalence Ratio B2-S3 Rel Throttle B Position
Ambient Air Temperature Equivalence Ratio B2-S3 2 Relative Accel Pedal Pos
Avg Demanded Equivalence Ratio B2-S4 Relative Intake Air A
Consumption Equivalence Ratio B2-S4 2 Relative Intake Air B
Avg Reagent Consumption Evap System Vapor Pres Relative Throttle Position
Barometric Pressure Evap System Vapor Press Run Time NOx Warn
Boost Pressure A Exhaust Gas Temp B1-S1 Short Fuel Trim B1-S1
Boost Pressure B Exhaust Gas Temp B1-S2 Short Fuel Trim B1-S2
Calculated Load Exhaust Gas Temp B1-S3 Short Fuel Trim B1-S3
Catalyst Temp B1-S1 Exhaust Gas Temp B1-S4 Short Fuel Trim B1-S4
Catalyst Temp B1-S2 Exhaust Gas Temp B2-S1 Short Fuel Trim B2-S1
Catalyst Temp B2-S1 Exhaust Gas Temp B2-S2 Short Fuel Trim B2-S2
Catalyst Temp B2-S2 Exhaust Gas Temp B2-S3 Short Fuel Trim B2-S3
Chrg Air Cooler Temp B1S1 Exhaust Gas Temp B2-S4 Short Fuel Trim B2-S4
Chrg Air Cooler Temp B1S2 Exhaust Pressure B1 Short Term Fuel Trim B1
Chrg Air Cooler Temp B1S2 Exhaust Pressure B2 Short Term Fuel Trim B2
Chrg Air Cooler Temp B2S1 Fuel Injection Timing Short Term Fuel Trim B3
Cmd Boost Pressure A Fuel Level Input Short Term Fuel Trim B4
Cmd Boost Pressure B Fuel Rail Press Rel Manifold Shrt Term Sec Fuel Trim B1

49 Scan Tool Operation

Cmd Fuel Rail Pressure A Fuel Rail Pressure Shrt Term Sec Fuel TrimB2
Cmd Fuel Rail Pressure B Fuel Rail Pressure (abs) Shrt Term Sec Fuel TrimB3
Cmd Injection Pressure A Fuel Rail Pressure (gauge) Shrt Term Sec Fuel TrimB4
Cmd Injection Pressure B Fuel Rail Pressure A Time Since DTCs Cleared
Cmd Throttle Actuator A Fuel Rail Pressure B Time Since Engine Start
Cmd Throttle Actuator B Fuel Rail Temp A Total Engine Idle Time
Cmd Variable Turbo A Fuel Rail Temp B Total Engine Run Time
Cmd Variable Turbo B Hybrid Battery Pack Life Total Engine Run w/PTO
Command Throttle Actuator Ignition Timing Advance Total Run w/IE-ACED 1
Commanded EGR Injection Pressure A Total Run w/IE-ACED 10
Commanded EGR A Duty Injection Pressure B Total Run w/IE-ACED 2
Commanded EGR B Duty Intake Air Temp B1-S1 Total Run w/IE-ACED 3
Commanded Equival Ratio Intake Air Temp B1-S2 Total Run w/IE-ACED 4
Commanded Evap Purge Intake Air Temp B1-S3 Total Run w/IE-ACED 5
Commanded Intake Air A Intake Air Temp B2-S1 Total Run w/IE-ACED 6
Commanded Intake Air B Intake Air Temp B2-S2 Total Run w/IE-ACED 7
Commanded Wastegate A Intake Air Temp B2-S3 Total Run w/IE-ACED 8
Commanded Wastegate B Intake Air Temperature Total Run w/IE-ACED 9
Control Module Voltage Intake Manifold Abs PresA Turbo A In Compressor
Distance Since DTCs Clrd Intake Manifold Abs PresB Turbo A In Turbine Temp
Distance Traveled MIL On Intake Manifold Pressure Turbo A Inlet Pressure
DPF Delta Pressure B1 Long Term Fuel Trim B1 Turbo A Out Compressor
DPF Delta Pressure B2 Long Term Fuel Trim B2 Turbo A Out Turbine Temp
DPF Inlet Pressure B1 Long Term Fuel Trim B3 Turbo A RPM
DPF Inlet Pressure B2 Long Term Fuel Trim B4 Turbo B In Compressor
DPF Inlet Temp B1 Long Term Sec Fuel Trim B1 Turbo B In Turbine Temp
DPF Inlet Temp B2 Long Term Sec Fuel TrimB2 Turbo B Inlet Pressure
DPF Outlet Pressure B1 Long Term Sec Fuel TrimB3 Turbo B Out Compressor
DPF Outlet Pressure B2 Long Term Sec Fuel TrimB4 Turbo B Out Turbine Temp
DPF Outlet Temp B1 Manifold Surface Temp Turbo B RPM
DPF Outlet Temp B2 Mass Air Flow A Variable Turbo A
Driver Demand Torque Mass Air Flow B Variable Turbo B
EGR A Error Minutes Run with MIL On Vehicle Speed
EGR B Error NOx Concentration B1-S1 Warm-ups Since DTCs Clrd
EGR Error NOx Concentration B2-S1 Wastegate A
EGR Temperature B1-S1 O2 B1-S1 Wide Range mA Wastegate B
EGR Temperature B1-S2 O2 B1-S1 Wide Range V
EGR Temperature B2-S1 O2 B1-S2 Wide Range mA

Air Fuel Ratio – overall air to fuel ratio of the vehicle being commanded by the vehicle ECU.
Air Fuel Ratio BX-SX (up to 8) – air to fuel ratio of the vehicle computed for one bank (i.e. one
oxygen sensor).
Average Economy – the average fuel economy of the vehicle over time.
Battery Voltage – the vehicle battery voltage.

50 Scan Tool Operation

Boost Pressure – the pressure measured within the intake manifold.
Distance Traveled – distance traveled by the vehicle. This is not the odometer.
Drive Time – the engine running time.
Fuel Cost – the cost per gallon or liter of fuel.
Fuel Used – amount of fuel used by the vehicle.
Idle Percent – the ratio of Drive Time vs. Idle Time.
Idle Time – the engine idling time defined as the motor running with the vehicle speed at 0.
Instant Economy – is defined as the instantaneous fuel economy of the vehicle (e.g. MPG).
Absolute Evap Vapor Pres – the evaporative system vapor pressure normally obtained from a
sensor located in the fuel tank or a sensor in an evaporative system vapor line.
Absolute Load Value – indicates a percentage of peak available torque. The normalized value
of air mass per intake stroke displayed as a percent.
Absolute Throttle Position (up to 3) – the absolute throttle position (not the relative or
learned) throttle position. Usually above 0% at idle and less than 100% at full throttle.
Accelerator Pedal Pos (up to 4) – the absolute pedal position (not the relative or learned)
pedal position.
Actual EGR A Duty (up to 2) – actual EGR displayed as a percent.
Actual Engine Torque – the calculated output torque of the engine.
Air Flow Rate From MAF – indicates the airflow rate as measured by the mass airflow sensor.
Alcohol Fuel Percentage – percentage of alcohol fuel contained in ethanol or methanol fuels.
Ambient Air Temperature – displays the ambient air temperature.
Avg Demanded Consumption – average demanded reagent consumption by the engine
system either over the previous complete 48 hour period of engine operation or the period
needed for a demanded reagent consumption of at least 15 liters, whichever is longer.
Avg Reagent Consumption – average reagent consumption by the engine system either over
the previous complete 48 hour period of engine operation or the period needed for a
demanded reagent consumption of at least 15 liters, whichever is longer.
Barometric Pressure – barometric pressure normally obtained from a dedicated barometric
sensor. Note some weather services report barometric pressure adjusted to sea level. In these
cases, the reported value may not match the displayed value.
Boost Pressure A (up to 2) –the actual turbocharger/supercharger pressure.
Calculated Load Value – indicates a percentage of peak available torque. Reaches 100% at
wide open throttle at any altitude or RPM for both naturally aspirated and boosted engines.
Catalyst Temp Bank X – Sensor X (up to 4) –the catalyst substrate temperature.
Chrg Air Cooler Temp BXSX – (up to 4) – the charge air cooler temperature.

51 Scan Tool Operation

Cmd Boost Pressure A (up to 2) – the ECU commanded turbocharger/supercharger pressure.
Cmd Fuel Rail Pressure A (up to 2) – the commanded fuel rail pressure when the reading is
referenced to atmosphere (gauge pressure).
Cmd Injection Pressure A (up to 2) – the commanded injection control pressure.
Cmd Throttle Actuator A (up to 2) – the commanded throttle actuator. 0% fully closed and
100% fully open.
Cmd Variable Turbo A (up to 2) – the variable geometry turbocharger commanded vane
position as a percent.
Commanded Throttle Actuator – displays 0% when the throttle is commanded closed and
100% when the throttle commanded open.
Commanded EGR (up to 3) – display 0% when the EGR is commanded off, 100% when the
EGR system is commanded on, and if the EGR is duty cycled somewhere between 0% and
100%.
Commanded Equival Ratio – the commanded equivalence ratio (also known as lambda)
while the fuel system. Fuel systems that use conventional oxygen sensors display the
commanded open loop equivalence ratio while the system is in open loop. Should report
100% when in closed loop fuel. Fuel systems that utilize wide-range/linear oxygen sensors
shall display the commanded ratio in both open-loop and closed-loop operation.
Commanded Evap Purge – displays 0% when no evaporative purge is commanded and 100%
at the maximum commanded purge position/flow.
Commanded Intake Air A (up to 2) – the commanded air intake displayed as a percent. Also
known as EGR Throttle on compression ignition engineers.
Commanded Wastegate A (up to 2) – the commanded wastegate position as a percent. 0%
is fully closed (full boost) and 100% fully open (dump boost).
Control Module Voltage – power input to the control module. Normally the battery voltage,
less any voltage drop between the battery and the control module.
Distance Since DTCs Cleared – distance accumulated since DTCs where cleared with a scan
tool.
Distance Traveled MIL On – accumulates the vehicle distance traveled while the MIL light is
illuminated.
DPF Delta Pressure BX (up to 2) – diesel particulate filter delta pressure.
DPF Inlet Pressure BX (up to 2) – diesel particulate filter inlet pressure.
DPF Inlet Temp BX (up to 2) – diesel particulate filter inlet temperature.
DPF Outlet Pressure BX (up to 2) – diesel particulate filter outlet pressure.
DPF Outlet Temp BX (up to 2) – diesel particulate filter outlet temperature.
Driver Demand Torque – the requested torque output of the engine by the driver.

52 Scan Tool Operation

EGR Error (up to 3) – error as percent of actual commanded EGR. Negative percent is less than
commanded and positive is more than commanded.
EGR Temperature BX-SX (up to 4) – the EGR gas temperature.
Engine Coolant Temp (up to 3) – engine coolant temperature derived from an engine
coolant temperature sensor or a cylinder head temperature sensor.
Engine Fuel Rate – amount of fuel consumed by the engine per unit of time in liters per hour.
Engine Oil Temp – engine oil temperature.
Engine Reference Torque – display the engine reference torque value. This value does not
change.
Engine RPM – displays the current engine revolutions per minute value.
Engine Torque Idle Point – the torque limit that indicates the available engine torque that
can be provided by the engine at idle speed.
Engine Torque Point X (up to 4) – the torque limit that indicates the available engine torque
that can be provided by the engine point X of the engine map.
Equivalence Ratio BX-SX (up to 16) - is defined as the ratio of the fuel-to-oxidizer ratio to the
stoichiometric fuel-to-oxidizer ratio.
Evap System Vapor Press – evaporative system vapor pressure normally obtained from a
sensor located in the fuel tank.
Exhaust Gas Temp BX-SX – exhaust gas temperature.
Exhaust Gas Pressure BX – exhaust gas pressure.
Fuel Injection Timing – the start of the mail fuel injection relative to Top Dead Center (TDC).
Positive degrees indicate before TDC. Negative degrees indicate after TDC.
Fuel Level Input – indicates the nominal fuel tank liquid fill capacity as a percent of
maximum.
Fuel Rail Press Rel Manifold – displays the fuel rail pressure referenced to the manifold
vacuum (relative pressure).
Fuel Rail Pressure – indicates the fuel rail pressure at the engine referenced to atmosphere
(gauge pressure).
Fuel Rail Pressure (abs) – fuel rail pressure at the engine when the reading is absolute.
Fuel Rail Pressure (gauge) – displays the fuel injection rail pressure at the engine when the
reading is referenced to atmosphere (gauge pressure).
Fuel Rail Pressure A (up to 2) – fuel rail pressure when the reading is referenced to
atmosphere (gauge pressure).
Fuel Rail Temp A (up to 2) – the fuel rail temperature.
Fuel Rate – the rate at which fuel is consumed by the engine in gallons/hour or liters/hour.

53 Scan Tool Operation

Hybrid Battery Pack Life – the percent remaining life for the hybrid battery pack.
Ignition Timing Advance – ignition timing advance for #1 cylinder (not including any
mechanical advance).
Injection Pressure A (up to 2) - the injection control pressure.
Intake Air Temp BX-SX – displays the intake manifold air temperature.
Intake Air Temperature – displays the intake manifold air temperature.
Intake Manifold Abs PresA (up to 2) – intake manifold absolute pressure.
Intake Manifold Pressure – indicates the manifold pressure derived from a Manifold
Absolute Pressure sensor.
Long Term Fuel Trim-BX (up to 4) – indicates the correction being used by the fuel control
system in both open and closed loop modes of operation.
Long Term Fuel Trim BX-SX (up to 8) - indicates the correction being used by the fuel control
system in both open and closed loop modes of operation.
Manifold Surface Temp – intake manifold surface temperature.
Mass Air Flow A (up to 2) – airflow rate as measured by a vehicle MAF sensor or an equivalent
source.
Minutes Run with MIL On – accumulated minutes of engine run time while the MIL light is
on.
NOx Concentration BX-SX (up to 2) – NOx concentration.
O2 Sensor BX-SX Wide Range mA (up to 8) – shows milliamps for linear or wide-ratio oxygen
sensors.
O2 Sensor BX-SX Wide Range V (up to 8) – shows voltage for linear or wide-ratio oxygen
sensors.
O2 Sensor BX-SX (up to 8) – indicates the voltage for conventional 0 to 1V oxygen sensors.
O2 sensors with a different full-scale voltage shall be normalized to this range or, if a wide
range sensor, may use the wide range parameters instead.
PM Mass Concentration BX-SX (up to 2) – particulate matter mass concentration.
Reagent Tank Level – nominal reagent tank liquid fill capacity as a percent of maximum.
Rel Throttle A Position (up to 2) - relative or “learned” throttle position.
Relative Throttle Position – relative or “learned” throttle position.
Relative Accel Pedal Pos - relative or “learned” pedal position.
Relative Intake Air A (up to 2) – actual intake airflow position displayed as a percent. Also
knows as EGR Throttle Position on compression ignition engines.
Run Time NOx Warn – run time of the engine while NOx warning mode is activated.

54 Scan Tool Operation

Short Term Fuel Trim-BX (up to 4) – indicates the correction being used by the closed loop
fuel algorithm. If the fuel system is open loop, 0% correction should be reported.
Short Term Fuel Trim BX-SX (up to 8) - indicates the correction being used by the closed
loop fuel algorithm. If the fuel system is open loop, 0% correction should be reported.
Short Term Sec Fuel Trim BX (up to 4) – short term secondary O2 sensor fuel trim shall
indicate the correction being utilized by the closed-loop fuel algorithm. If the fuel system is
open loop, 0% correction should be reported.
Time Since DTCs Cleared – engine run time accumulated since DTCs were cleared.
Time Since Engine Start – indicates the elapsed time since the engine was started while the
engine is running.
Total Engine Idle Time – total engine idle time for the life of vehicle.
Total Engine Run Time – total engine run time for the life of vehicle.
Total Engine Run w/PTO – total engine run time with PTO (power take off) engaged for the
life of the vehicle.
Total Run w/IE-ACED X (up to 10) – total engine run time with Emission Increasing Auxiliary
Emission Control Device active for the life of the vehicle.
Turbo A In Compressor (up to 2) – turbocharger compressor inlet temperature.
Turbo A In Turbine Temp (up to 2) – turbocharger turbine inlet temperature.
Turbo A Inlet Pressure (up to 2) – turbocharger inlet pressure.
Turbo A Out Compressor (up to 2) – turbocharger compressor outlet temperature.
Turbo A Out Turbine Temp (up to 2) – turbocharger turbine outlet temperature.
Turbo A RPM (up to 2) – turbocharger revolutions per minute.
Variable Turbo A (up to 2) – variable geometry turbocharger actual vane position as a
percent. 0% when vanes are fully bypassed and 100% when the vanes are fully utilized.
Vehicle Speed – displays the vehicle road speed.
Warm-ups Since DTCs Cleared – number of warm-up cycles since all DTCs were cleared via a
scan tool. A warm-up is defined as the coolant temperature rising by at least 22°C (40°F) and
the engine temperature reaches at a minimum 70°C (160°F) (60°C (140°F) for diesels).
Wastegate A (up to 2) – actual wastegate position as a percent. 0% wastegate is off (allow full
boost) and 100% fully open (dump boost).

Live Data Screen

The Live Data screen has two panes: List and Graph.

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 Figure 26: Live Data Screen
The Live Data screen supports recording and playback of live data. See Record/Playback for
more information.
The Options button in the upper right corner of each pane provides a menu of options.
Alternatively, right mouse clicking inside any pane displays the Options menu.
Panes are added or deleted using the Options menu items Add Graph Pane, Add List Pane,
and Delete Pane.

List Pane
The List pane displays real-time sensor readings from the vehicle in a list format. Any number
of sensors can be monitored simultaneously. Note the more sensors selected, the slower the
update interval of each sensor.
1 Switch to the Live Data screen as described in the section Navigation Docking Window.
2 Press the Options button in the upper right corner of the List pane. Alternatively, right
mouse click anywhere in the List pane. Select the Edit Parameters menu option.
3 Press the Add Parameter button.
4 Select a sensor from the ECU Parameters list box located on the right side of the dialog.
5 Press OK.
6 Live data now displays in the List pane.
7 Selecting Live Data > Hold temporarily suspends updating the Live data display. Selecting
Hold again resumes sensor sampling.

56 Scan Tool Operation

The List pane shows these values:
Parameter – the selected parameter.
Value – the last measured parameter reading.
Units – the units of measurement for the Value.
Min – the minimum Value measured.
Max – the maximum Value measured.
Bar Graph – the current Value reading in relation to the absolute minimum and
maximum parameter values.
To reset the Min and Max values, select Options > Reset Min Max.

Graph Pane
The Graph pane displays real-time sensor readings from the vehicle in a line graph format.
Two sensors at a time may be monitored simultaneously on one Graph pane. More panes are
added using the Options > Add Graph Pane option.
The Live Data menu options Zoom in X, Zoom in Y, Zoom out X, and Zoom out Y zoom the
graph - vertically and horizontally. Each trace can be zoomed on the vertical axis independent
of the other trace by using the zoom in/out buttons next to the scroll bars. The horizontal axis
zooms both traces together.
When changing vertical zoom levels, the minimum and maximum display value labels change
to reflect the new range. The current sensor reading will always display the correct value
irrespective of the zoom range or graphical clipping.
Data values exceeding the vertical graph limits, either high or low, will be clipped at the
vertical maximum/minimum graph value.
The graph control has a virtual trace buffer that stores many pages of graph information. Scroll
right and left using the control a the bottom of the graph pane to view all the data within the
trace buffer.
Exact measurement values for any data point along the trace can be shown using the marker.
The marker is a vertical dashed line within the graphing area. A left mouse click within the
graph boundaries sets the marker position. The data point under the marker for each axis will
update as the marker is moved about the graphing area.
Pressing zoom in will center the horizontal axis display around the marker. This facilitates
selecting a point of interest with the marker, then zooming in the horizontal axis to examine
the data point.
The sensor Sample Speed (High, Medium, or Low) for each trace must be the same on the
Graph screen. The software enforces identical sample speeds.
1 Switch to the Live Data screen as described in the section Navigation Docking Window.
2 Press the Options button in the upper right corner of the Graph pane. Alternatively, right
mouse click anywhere in the List pane. Select the Edit Parameters menu option.

57 Scan Tool Operation

3 Press the Add Parameter button.
4 Select a sensor from the ECU Parameters list box located on the right side of the dialog.
5 Press OK.
6 Live data now displays on the Graph pane.
7 Selecting Live Data > Hold temporarily suspends the Live display. Selecting Hold again
resumes sensor sampling.

Oxygen Sensors
The Oxygen Sensors screen has two panes: Oxygen Sensor Test Results and Oxygen Sensor
Output Legend.

Figure 27: Oxygen Sensors Screen

Oxygen Sensors Test Results Pane

The Oxygen Sensors Test Results pane displays the vehicle’s oxygen sensor test results. The
results displayed here are computed/measured by the vehicle’s on-board computer (ECU) last
successful test. These tests are performed internally by the vehicle and are not initiated by the
scan tool. These are not live values but instead the results of the ECU’s last O2 sensor test. For
live O2 sensor readings, refer to any of the live sensor screens such as Graph Pane, selecting
the desired O2 sensor parameters
For these test results to accurate, the Oxygen Sensor test on the in the Vehicle Monitor Status
section within the Vehicle Monitor Test Status pane should have a Test Status of Complete.

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Not all test values are applicable to all vehicles. Therefore, the list generated will vary
depending on the vehicle. In addition, not all vehicles support the Oxygen Sensors screen. If
the vehicle or a particular sensor does not support this feature, the screen list will be blank.
The test values measured by the ECU correspond to certain attributes of the O2 sensor voltage
over time waveform as shown the Oxygen Sensor Output Legend Pane.
1 Switch to the Oxygen Sensors screen as described in the section Navigation Docking
Window.
2 Press the “+” icon next to the Sensor Location to display the sensor results.
The Oxygen Sensors Test Results displays these values:
Parameter – an oxygen sensor parameter.
Value – the ECU measured test result
Min - the minimum test limit for which the measured test result is compared.
Max - the maximum test limit for which the measured test result is compared.
Units – the units of measure for the Value.

Oxygen Sensor Output Legend Pane

The Oxygen Sensor Output Legend Pane shows an oxygen sensor voltage over time waveform
illustration. Each parameter with in the Oxygen Sensors Test Results pane is measured is
shown on the illustration.

Test Results Screen

The Test Results screen shows the results for on-board diagnostic monitoring test of specific
components / systems that are continuously monitored (e.g. mis-fire monitoring) and non-
continuously monitored (e.g. catalyst system).
The Test Results pane displays the vehicle ECU’s test results. The results displayed here are
computed/measured by the vehicle’s on-board computer (ECU) last successful test. These
tests are performed internally by the vehicle and are not initiated by the scan tool. These are
not live values but instead the results of the ECU’s last test.
Not all test values are applicable to all vehicles. Therefore, the list generated will vary
depending on the vehicle. In addition, only vehicles using CAN communication protocol are
supported on this screen. If the vehicle or a particular sensor does not support this feature, the
screen list will be blank.
The Test Results displays these values:
Parameter – a test result parameter.
Value – the ECU measured test result
Min - the minimum test limit for which the measured test result is compared.
Max - the maximum test limit for which the measured test result is compared.

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 Units – the units of measure for the Value.

Figure 28: Test Results Screen

On-Board Tests Screen

The On-Board Tests screen shows the bi-directional controls supported by the vehicle. Bi-
directional on-board tests are commands sent by the scan tool to the vehicle to perform some
action.
The Bi-Directional Control pane shows the tests supported by the vehicle. If the vehicle does
not support any bi-directional controls, the screen will remain blank. To run an on-board test,
select the test to run then press the Run Selected On-Board Test. The vehicle will respond to
the command with a status shown in the Status column.
Table 4: Status Messages
Status Meaning
Complete Indicates the vehicle completed the requested action
successfully.
General Reject Indicates that the service requested was rejected but the
vehicle ECU did not specify the reason of the rejection.
Service Not Supported Indicates that the requested action will not be taken because
the vehicle ECU does not support the requested service.
Sub Function Not Supported Indicates that the requested action will not be taken because

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– Invalid Format the vehicle ECU does not support the arguments of the
requested message.
Busy – Repeat Request Indicates the vehicle ECU is temporarily too busy to perform
he requested operation.
Conditions Not Correct Or Indicates that the requested action will not be taken because
Request Sequence Error the vehicle ECU prerequisite conditions are not met. May also
occur when sequence sensitive requests are issued in the
wrong order.

The Bi-Directional Test Description pane provides a description for the currently selected bi-
directional control within the Bi-Directional Control pane.

Figure 29: On-Board Tests Screen

Analyze Live Data Screen

The Analyze Live Data screen provides a view of the entire live data recording. Whereas the
Live Data screen plays back the recorded data, the Analyze Live Data screen shows the
recorded data all at once.
The Analyze Live Data screen is a data analysis tool. Numerous options are available for
viewing the data, such as a stacked or side-by-side view, hiding traces, zoom in and out, and
markers showing each data point.

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 Figure 30: Analyze Live Data Screen (Side-By-Side)

62 Scan Tool Operation

 Figure 31: Analyze Live Data Screen (Stacked)
A right mouse button click on these graph elements brings up a shortcut menu for additional
options.
• X-Axis
• Y-Axis
• Data-Cursor

Viewing Recorded Live Data

To open a recorded Live Data file an view on the Analyze Live Data screen:
1 Select the File > Open > Live Data File… menu option.
2 On the Open Live Data File dialog select a previously recorded live data file.
3 Press Open to open the file.
4 Switch to the Analyze Live Data screen to view the opened data.
See Record/Playback on page 46 for more information on how to record a Live Data file.

Analyze Tool Bar

The toolbar provides quick and easy control over the function of the chart.

63 Scan Tool Operation

Button Meaning
Resume Button: Shows all data on all axes.

Pause Button: Pauses tracking for all axes.

Axes Mode Buttons: Changes the mode that the axes are in when using the
mouse. The first icon puts the axes in scroll mode. The second icon puts the
axes in zoom mode. TIP: Press the Ctrl keyboard key to toggle between the two
modes.
Zoom In/Out Buttons: Zooms all axes in or out.

Select Button: Used for selecting items in the data view area.

Zoom Box Button: Allows the user to draw a "Zoom Box" to zoom ALL axes.

Data Cursor Button: Show or hide all data cursors. Values for each channel are
displayed in a hint window next to the cursor(s).
Copy Button: Copies the current component image to the clipboard.

Save Button: Save chart data to an image or data file.

Print Button: Print image of chart to printer.

Options Button
The Options dropdown button on the upper right corner of the Analyze Live Data graph title
bar provides a menu to graph features.
Shortcut Menu Meaning
Side-By-Side View Switches between Side-By-Side view and the Stacked view.
Show Markers Shows a round dot on each data point.
Show File Name Shows the file name at the top of the graph.
Show Legend Shows a trace legend on the right side of the graph.
Show All Parameters Shows every parameter on the screen.
Hide All Parameters Hides all parameters on the screen.
Parameters Shows/hides individual parameters on the graph.

Axis Control
The chart has two axes, one x-axis (horizontal) and one or more y-axis (vertical). Each axis
shows the name of the parameter, units of measure, and numbers showing the axis scale.
The chart has two main modes, Axis Scroll mode and Axis Zoom mode. The modes are
switched using the Axis Scroll or Axis Zoom buttons on the toolbar.
Many options require dragging, which means pressing and holding the left mouse button
while moving the mouse is a direction.

64 Scan Tool Operation

Zoom All Axes
Toolbar Zoom: All axes can be zoomed together using the toolbar.
1 Left mouse click anywhere inside the line graphing area (a dotted box will surround the
entire axes and line graphing area).
2 Press the Zoom In or Zoom Out toolbar button.
Zoom-Box Zoom: All axes can be zoomed using the Zoom-Box tool.
1 Select the Zoom-Box button on the toolbar.
2 Click inside the line graph area and drag a dotted line box around the area to zoom in.
Mouse Zoom: The entire graph area can be dynamically zoomed using the mouse.
1 Press the Axes Zoom toolbar button.
2 Press the Select toolbar button.
3 Drag the line graphing area to dynamically zoom both the x and y-axes. Drag left and right
zooms the x-axis, and up and down zooms the y-axis.

Zoom One Axis

Toolbar Zoom: Each axis can be zoomed independent of the other using the toolbar zoom
buttons.
1 Press the Axis Zoom toolbar button.
2 Select an axis to zoom with the left mouse button (a dotted box will surround the axis).
3 Press the Zoom In or Zoom Out toolbar button.
Mouse Zoom: Each axis can be dynamically zoomed using the mouse.
1 Select the Axis Zoom button on the toolbar.
2 Drag an axis to zoom in and out.
Shortcut Menu Zoom: The software can also zoom a parameter to fit the entire graphing
area.
1 Right mouse click an axis and select from the shortcut menu Zoom To Fit > All or Zoom To
Fit > In-View. The All option zooms the line based upon the data points in the entire
recorded file. The In-View option only zooms the data points that are visible within the
graphing area.

Scroll One Axis

Mouse Scroll: Once an axis is zoomed, it can be scrolled up and down.
1 Press the Axis Scroll toolbar button.
2 Drag an axis to scroll.

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Scroll All Axes
Mouse Scroll: The entire graph area can be scrolled in any axis direction by mouse dragging.
The chart must be zoomed on at least 1 axis before you can drag the chart.
1 Press the Axis Scroll toolbar button.
2 Drag the graph in any direction causes dynamic zooming in and out.

Data-Cursor Control
The Data-Cursor is a red crosshair within the graphing area. Dragging the crosshair vertical line
moves the cursor. As the cursor is moved, the tooltip shows the current x/y value. If the
Options > Show Markers is on, round markers will mark each individual data point. Tooltip
values between actual marker data points are interpolated.
The data cursor can be moved to a data point marker.
1 Drag the cursor close to the marker you want to measure.
2 Release the left mouse button. The cursor will snap to the closest marker providing an
exact value of the data point.
Moving the data-cursor between parameters uses the shortcut menu.
1 Right mouse click anywhere on the cursor crosshair lines.
2 Select Channel from the shortcut menu, then the parameter to monitor.
The data-cursor has many different measurement modes selected from the Style shortcut
menu:
• Value-XY
• Value-X
• Value-Y
• Period
• Peak-Peak
• Frequency

Analyze Data Export

The Analyze Live Data screen can export data into a data file or graphics file.

Save Button
The Save button on the graph toolbar can save the graph as a graphics image file or as a text
data file (.dat). The text data file is saves a series of X and Y values for each parameter. The file
can be opened with any text editor or with a spreadsheet such as Microsoft Excel.

Copy Button
The Copy button on the graph toolbar can copy the data into the Windows clipboard as either
a graphics image file or as text data. Once copied, the data can be pasted into another
application such as word processor.

66 Scan Tool Operation

Playback
Pressing the Play button on the Playback Control toolbar plays the data on the Analyze Live
Data screen. The tooltip on the Data Cursor will continually update as the data plays back. The
Playback Pause or Stop button halts playback. Playback is particularly useful in conjunction
with the Google Earth feature. See Google Earth on page 84 for more information.

Code Search Screen

The Code Search dialog provides an interactive search of diagnostic trouble code definitions
(DTCs).

Figure 32: Code Search Dialog

Generic codes and enhanced codes have predefined numeric ranges as shown in Table 5: DTC
Groupings.
Table 5: DTC Groupings
ISO/SAE Controlled (Generic) Manufacturer Controlled (Enhanced)
P0000 to P0999 P1000 to P1999
P2000 to P2999 P3000 to P3399
P3400 to P3999

1 Select the Tools > Code Search… menu option.

2 Type a code into the Code to Search field (e.g. P1234). The code must start with a P, B, C or
U and end with a 4-digit number.
3 Press the Search button. If a definition is found, it will display in the Search Results table.

Import
The Import feature allows users with the Dyno-Scan™ for Palm OS software product to import
files recorded on a Palm OS device. Acceleration, Power Torque, and Scan Data files may be
imported and viewed within the Dyno-Scan for Windows software.
The Import feature is located on the File > Import > Palm PDB File… menu option.

67 Scan Tool Operation

Export
The Export feature allows files to be exported into a comma separated values (CSV) file format.
Acceleration, Power Torque, and Scan Data files may be exported.
The Export feature is located on the File > Export menu option. See Exporting Files on page 90
for more information regarding exporting files.

68 Scan Tool Operation

 CHAPTER 6
Dyno Operation

The Dyno software is designed for easy operation. This section shows how to operate the
Dyno features and describes the features on each screen.
Dyno operations require driving the vehicle while the software records performance data. For
increased safety, the software does not require user intervention during the test runs. All data
is recorded for later analysis and audible tones are used to convey instructions to the user
while driving.

Ensure the PC, cable, and OBD II adapter do not interfere with the vehicle
controls. A cable dangling in front of the foot pedals, gear shifter, or steering wheel
can interfere with vehicle operation and cause a fatal accident. Always ensure the
PC, cable, and OBD II adapter are securely fastened out of the way. If the scan tool
cannot be safely attached as to not interfere with the vehicle controls, then do not
drive the vehicle with the OBD II adapter connected to the vehicle.

Never race or exceed the posted speed limit while on public highways. The
dynamometer operations require accelerating to high speeds. Always uses a closed
course raceway when performing dynamometer and acceleration tests.

Do not attempt to operate or observe the scan tool while driving a vehicle.
Driving requires the full attention of the driver. Operating or observing the scan tool
will cause driver distraction and could cause a fatal accident.

Theory of Operation
A dynamometer, or dyno for short, is used to measure the power produced by an engine. Until
now, automotive dynos were either crankshaft dynamometers or chassis dynamometers.
Crankshaft dynos require the motor to be removed from the vehicle. The power is measured
directly at the crankshaft, or flywheel, and is not affected by transmission and axle powertrain
losses. Vehicle manufacturers spec crankshaft power on new cars and trucks.
Chassis dynos test the entire vehicle. The vehicle is tied down to a large machine and the drive
wheels are placed over a rotating drum. The chassis dyno tests the entire powertrain system,

69 Dyno Operation
not just the crankshaft power. This is a more realistic test since it measures the power
delivered to the wheels, not just the crankshaft. As such, the power figures measured are
always less than with a crankshaft dyno since the powertrain robs some power from the
vehicle.
Clearly pulling the motor to use a crankshaft dyno is beyond most people, and chassis dynos
can run $150 and hour or more to operate.

Auterra Dyno-Scan™ for Windows

The Auterra Dyno-Scan™ for Windows software is a newly developed device designed
expressly for the automotive enthusiast. It uses the OBD II computer port located on all 1996
and newer automobiles to compute engine power, acceleration times, fuel economy, and
more.
The Dyno-Scan™ for Windows is the only dyno to test the vehicle in a completely real world
situation that includes powertrain losses, drag from disk brakes and wheel bearings, tire
rolling resistance, etc. – everything a vehicle sees on the street.
Aerodynamic drag is compensated for within the calculations. So, whether your vehicle has
the aerodynamics of a Chevy Suburban or a Porsche 911, the power calculations can correct
for losses due to wind drag.
Weather conditions affect the output of an internal combustion motor. A correction factor is
applied to compensate the measurements for weather conditions and elevation. The industry
standard document for horsepower and torque corrections is SAE J1349. The Dyno-Scan™ for
Windows software applies this correction factor to all horsepower and torque measurements.
By applying these correction factors to the dyno results, a vehicle dyno'd in Denver on a hot
day will give the same results as a chilly day in San Diego. Using the Dyno-Scan™ for Windows,
measurements generated are comparable with one another the world over.
The dyno runs are performed in a single gear. Any gear will work, however increased accuracy
is obtained if the software has an increased measurement duration. For instance, the time to
accelerate from 1000 RPM to 5000 RPM in 1st gear is a shorter duration than it would be in 3rd
gear. Therefore, using 2nd or 3rd gear for dyno runs offers longer test durations for greater
accuracy.
Extensive comparison testing on a Dynojet chassis dynamometer has shown the Dyno-Scan™
for Windows to be extremely accurate.

Automatic Transmissions
All automatic transmissions are equipped with a torque converter. The torque converter is
designed to slip under certain conditions, such as at low RPM and under heavy load. When the
torque converter slips, the gear ratio is artificially lower and the RPM is higher than if the
torque converter is locked up in direct drive. At cruising speeds and under low load
requirements, the torque converter locks up for increased fuel economy.
Under heavy acceleration, the slippage is greatest below 3000 RPM. Above 3000 RPM the
slippage is still evident but to a lesser degree.

70 Dyno Operation
A slipping torque converter is perfectly normal. Automatic transmissions are designed to slip,
which gives them some advantages when towing a heavy load. However, this causes an
anomaly known to all chassis dynos and the Dyno-Scan™ for Windows.
Since the RPM is higher than normal while the torque converter is slipping below 3000 RPM,
the power vs. torque graphs may display an unnaturally large swell below 3000 RPM. This
swell is the torque converter multiplying the engines available torque. The swell is normal and
all dynos exhibit this behavior. The power torque figures above 3000 RPM are the real
numbers generally used for evaluation.

Figure 33: Power Torque Run Automatic Transmission

Fast Sampling
The Fast Sampling preference on the Options dialog must be enabled to achieve accurate
dyno operation. Ensure this option is selected whenever using Dyno features.

Dyno Files
The Dyno feature use three storage file types:
Power Torque – stores Power and Torque run data.
Acceleration – stores Acceleration run data.
Dyno Setup – stores Dyno setup variables such as vehicle weight, elevation, humidity,
etc.
Each of the files may be opened or created from the File > Open or File > New menu option.

71 Dyno Operation
The properties of each file may be viewed and modified in either the File Properties or Dyno
Setup Properties docking window. See Properties Windows for more information.

Dyno Setup File Properties

The Dyno Setup file properties are changed on the Dyno Setup Properties Docking Window.
The file attributes are:
File – file name.
File Full Path –file name and path.
Weight – weight of the vehicle including passengers during the run.
Gear Ratio – the overall gear ratio of the vehicle, which includes transmission and
axle.
Tire Diameter – the vehicle tire diameter.
Temperature – current outside temperature.
Elevation –elevation at the test track.
Humidity – current outside humidity.
Pressure – current outside altimeter pressure available from www.nws.noaa.gov.
Altimeter pressure is different than barometric pressure.
Drag Coef – drag coefficient of vehicle.
Frontal Area – the frontal area of the vehicle.
Note – an optional text note.
Make – Vehicle make.
VIN – vehicle identification number.
Year – model year of vehicle.
The software can measure the gear ratio and compute the tire diameter for you. See Compute
Gear Ratio for more information.

Drag Coefficient and Frontal Area

Common drag coefficients are usually in the range of 0.25 to 0.45 – the lower the number the
less wind drag on the vehicle.
Frontal areas are usually in the range of 17 to 28 sq. ft – the lower the number the less frontal
area. Smaller vehicles have lower frontal areas.
To get an understanding for these numbers, Table 6: Drag Coefficients and Frontal Areas list
the values for different vehicle types.

72 Dyno Operation
Table 6: Drag Coefficients and Frontal Areas
Vehicle Drag Coefficient Frontal Area (sq/ft)
2005 BMW 325i 0.30 22.7
2005 Chevrolet Corvette Z06 0.31 22.4
2006 Porsche Cayman 0.29 21.3
1999 Chevy Cavalier 0.36 21.5
2000 Ford Taurus 0.32 23.7
2000 Chevy Silverado 1500 2WD 0.45 28.0
2000 Ford Explorer 0.45 25.8
2002 Honda Insight 0.25 20.5
2002 Honda Civic Hatchback 0.36 20.5
2000 Acura Integra 0.32 20.1
2000 Volvo S40 0.32 20.9
2000 Mercedes E320 0.29 22.3
2000 Chrysler LHS 0.31 23.1

See the Auterra Vehicle Specifications document for more information on your specific vehicle
make and model.
An Internet search is another good source of drag coefficients, frontal areas and vehicle
weights. The web site www.carfolio.com has specifications for thousands vehicles.
Many frontal areas on the Internet are listed in metric square meter (m2). To convert to square
feet (f2) multiply the metric frontal area by 10.76.
2.11 m2 x 10.76 = 22.71 f2

Calculation of Frontal Area

Frontal area can be calculated for any car. The frontal area represents the front projection area
of the vehicle. If one takes a straight-on picture of the front of a vehicle, it is the area included
in the outline. Use the following to calculate:
1. Calculate the area of a rectangle, which would encompass the front of the vehicle
(multiply width by the height).
2. Adjust the figure obtained above for areas not included, such as top rounded corners,
etc. Typical adjusting values are 85 percent for cars, and 100 percent for trucks.

Dyno Setup File Properties Usage

The Dyno Setup file stores vehicle setup variables. When a power torque run is performed, the
Dyno Setup file settings are copied into the Power Torque file. Similarly, the current Dyno
Setup file is copied into the Acceleration file for acceleration runs.
Once the settings are copied from the Dyno Setup file to the Power Torque or Acceleration file,
there is no tie to the original Dyno Setup file. Meaning if you change a Dyno Setup file, it does
not affect any stored Power Torque or Acceleration properties.

73 Dyno Operation
Compute Gear Ratio Dialog
The Gear Ratio screen measures the overall gear ratio of the vehicle and computes a tire
diameter given the tire size. The screen is located on the Tools > Compute Gear Ration menu
option.

Figure 34: Compute Gear Ratio Dialog

Tire Diameter
Computing a tire diameter requires entering the tire size. Most passenger car tire sizes are
listed as width, ratio, and rim diameter (e.g. 205/65 R15).
Enter the tire size using the Width, Ratio, and Rim Dia drop down lists. Once entered, press the
Compute Tire Diameter to calculate the tire diameter in inches.
Many large truck tire sizes are sized differently. These tires are listed as diameter, width, and
rim diameter (e.g. 31x10.5 R16). In this case, the first number is used as the tire diameter, in
inches (e.g. 31”), and entered directly into the Tire Diameter field.
Manufacturers are usually off very slightly from the indicated tire size. Many manufactures list
the exact tire diameter on their website. If available, use the tire diameter listed on the
manufacturer’s datasheet.

74 Dyno Operation
Measuring Overall Gear Ratio
Measuring the vehicle gear ratio involves keeping the vehicle speed steady while the software
computes an overall gear ratio. The gear ratio changes with each transmission gear. Therefore,
the software computes one overall gear ratio per gear ratio run (e.g. overall gear ratio for 2nd
gear). The overall gear ratio is the combination of the transmission gear ratio and the final
drive gear ratio.
The Status field lists the status of the gear ratio run, either:
Idle – no data is being gathered.
Countdown to Start – shows the number of seconds until data collection begins.
Collecting Data – vehicle data is being recorded.
A tire diameter must be entered in the Tire Diameter field before performing a gear ratio run.
Pressing Measure Gear Ratio will start a gear ratio run.
Once a tire diameter is entered, pressing the Measure Gear Ratio button starts the 10-second
countdown. During this time, get the vehicle moving in the gear the run is going to be
performed in (e.g. 2nd gear). The vehicle RPM should be between 3000 and 4000 RPM for best
results. Once the gear and RPM is achieved, keep the throttle steady and clutch out (if a
manual transmission).
At the end of the countdown, the software will beep. After the beep continue to keep the
throttle steady until a second beep is heard (about 10 seconds). The second beep indicates the
gear ratio run is over.
Bring the vehicle to a complete stop. The measured overall gear ratio is displayed.

Calculating Overall Gear Ratio

The overall gear ratio can also be computed if the tire diameter and RPM at a speed is known.
The following formula computes the overall vehicle gear ratio used by the dyno software:
overall gear ratio = RPM x tire diameter / MPH x 336
Example car:
3.57 = 3000 RPM x 26” / 65 MPH x 336
The preferred method is to use the Dyno-Scan™ to compute the overall gear ratio. If
calculating, always confirm your ratio calculation is correct by performing the procedure in
section Confirming Gear Ratio Result.

Confirming Gear Ratio Result

At the bottom of the Gear Ratio screen are three live values:
RPM – current measured RPM.
MPH (computed) – computed MPH using only RPM and the gear ratio.
MPH (real) – real MPH measured via the vehicle’s on-board computer.

75 Dyno Operation
MPH (computed) will only display if values are entered into the Tire Diameter and Gear Ratio
fields. If the computed MPH and real MPH values match throughout the RPM range then the
gear ratio and tire diameter values are correct for this vehicle. If they do not match, adjust the
Gear Ratio field up or down until the computed and real MPH match.
A computed verses real MPH check in a single gear might be:
1. Keep a steady speed at 2000 RPM.
2. Confirm the computed and real MPH values match.
3. Increase speed to a steady 4000 RPM.
4. Confirm the computed and real MPH values match.

Always have a passenger confirm the computed and real MPH readings match.
Driving requires the full attention of the driver. Operating or observing the scan tool
while driving will cause driver distraction and could cause a fatal accident.

Computing a gear ratio requires an accurate speedometer. If the vehicle’s tire size is either
smaller or larger than stock and the speedometer has not been recalibrated to the new wheel
size, then the computed gear ratio will be incorrect. This will make the horsepower and torque
figures higher or lower than expected.

Using Tire Diameter and Gear Ratio

After obtaining the tire diameter and gear ratio, the values are entered into the Gear Ratio and
Tire Diameter fields within a Dyno Setup file. See Dyno Setup File for more information.
TIP: To have multiple gear ratio setups for the same car, create a Dyno Setup file for each gear
with file names like Ford1stGear, Ford2ndGear, etc.

Automatic Transmissions
The software uses the gear ratio on the power torque run, which is performed under heavy
acceleration. The gear ratio run, however, is performed under essentially a no-load condition
where the torque converter slippage is negligible. Therefore, for automatic transmissions the
measured gear ratio may have to be lowered by 5 to 15% to account for the torque converter
slippage. Otherwise, the power and torque curves will show lower than expected results.

Dynamometer Getting Started

Using the dynamometer features requires a few one-time configurations. This section
summarizes those steps.
1 Obtain the drag coefficient, frontal area and vehicle weight as described in Drag
Coefficient and Frontal Area on page 72.
2 Measure gear ratio of your vehicle as described in Compute Gear Ratio Dialog on page 74.
3 Create a Dyno Setup file as described Dyno Setup File Properties on page 72.

76 Dyno Operation
4 Create a Power Torque file as described in Dyno Files on page 71.
5 Connect the OBD II adapter to your vehicle.
6 Turn the vehicle ignition ON.
7 Select the File > Connect menu option.
8 To measure power and torque, proceed to Dyno Run Dialog (Power Torque) on page 78.

Power Torque Screen

The Power. Torque screen analyzes power and torque data gathered from a vehicle run.

Figure 35: Power Torque Screen

The power torque graph shows the relationship between horsepower/torque and engine
RPM. The vertical axis shows the power and torque. The horizontal axis shows the engine RPM.
The value at any point along the curve is obtained by placing the mouse cursor (circle) over a
data point.
The File Properties displays the settings used to compute the power torque curve. When the
File Properties are modified the graph dynamically updates to show the newly computed
curve. See Dynamic Graph Update Using File Properties for more information.

Dynamic Graph Update Using File Properties

The File Properties docking window offers the ability to change parameters stored within the
file (see File Properties Docking Window). When the Power Torque screen is displayed,

77 Dyno Operation
modifying these File Properties causes the Power Torque graph and Run Statistics to
recompute based upon the new values.
Similarly, the Acceleration screen offers file properties. However, only Weight within the File
Properties docking window changes the computed Horsepower in the Run Statistics docking
window. Unlike power and torque, the acceleration graph is not derived from mathematical
computations and therefore the Acceleration File Properties are for informational purposes
only.
For instance, if the Power Torque file properties Elevation value is changed from 1000 feet to
9000 feet, the graph will redraw using the new input parameter.
See Properties Windows for more information about changing properties.

Dyno Run Dialog (Power Torque)

The Dyno Run dialog acquires the data from a power torque or acceleration run.

Figure 36: Power Torque Run

Two files are required to perform a power torque run: a Power Torque and a Dyno Setup file.
The Power Torque file is the destination for the collected run data. The Dyno Setup file
provides the operational parameters used by the software to compute horsepower and
torque. Both files types are created from the File > New menu option.
The Status field shows the status of the run, either:
Idle – no data is being gathered.
Countdown to Start – shows the number of seconds until data collection begins.
Collecting Data – vehicle data is being recorded.

Performing a Power Torque Run

Before the run, ensure the laptop, cables and OBD II adapter are securely fastened out of the
way and do not interfere with vehicle operation.
Once the Power Torque file and Dyno Setup files are selected, pressing the Start Run button
starts the 10-second countdown.

78 Dyno Operation
During the countdown, get the vehicle moving in the gear the run is going to be performed in
(e.g. 2nd gear). The vehicle RPM during the countdown should be relatively low, under 2000
RPM, the throttle steady, and clutch out (if a manual transmission).
At the end of the countdown, the software will beep. At the beep, floor the accelerator to
achieve maximum acceleration.
Once maximum RPM is reached, either shift to the next higher gear or decelerate the vehicle
by letting off the accelerator. Bring the vehicle to a complete stop and press Done to stop data
collection.

Power Torque Run Do’s and Don’ts

For safety and the most accuracy from the Dyno software, please follow the guidelines below.
Keep your attention on driving – the software is designed to require no user intervention
when a run is performed. Start the power torque run while the vehicle is stopped. During the
countdown, accelerate to the correct gear and starting RPM. Audible tones signal when to
accelerate the vehicle.
Consistent vehicle setup – use the same tire pressure, same number of passengers, no A/C,
windows rolled up, low beams on, radio and other accessories off.
Automatic transmission – most automatic transmissions will want to downshift under hard
acceleration. Experiment with higher starting RPM or roll the throttle on slowly at first to
prevent a downshift.
Manual transmission – ensure the clutch is completely out when the data collection starts.
Steady throttle – do not “blip” the throttle during the countdown period. Keep the throttle
and RPM steady.
Maximum throttle – keep the throttle fully floored until maximum RPM is achieved. A dip in
the RPM will cause the power torque graphs to terminate early3.
Dyno setup – try to obtain current temperature, humidity, elevation, and altimeter pressure
before each day of runs.
Head/Tail Wind – a windy day will skew the power/torque results higher or lower depending
on the wind direction. A relatively calm day provides the best results.
Level Ground – an uphill climb will make the power/torque lower and conversely a downhill
run will have higher than expected values. Level ground provides the best results.
Heat soak – repeated runs will cause the intake manifold temperature to increase. Hot air is
less dense and causes a reduction in power/torque. Just note that the first run may have
slightly higher values than subsequent runs if performed back-to-back.

3
Use common sense – let off the accelerator if something gets in the way of the vehicle.

79 Dyno Operation
Power Torque Run Statistics
The Run Statistics docking window calculates the peak horsepower and torque at RPM values
for the currently opened Power Torque file.
Power – peak horsepower output during the run.
Peak RPM – the RPM peak power was achieved.
Torque – peak torque output during the run.
Torque RPM – the RPM peak torque was achieved.

Acceleration Screen
The Acceleration screen analyzes acceleration data gathered from a vehicle run.

Figure 37: Acceleration Screen

The acceleration graph shows the relationship between vehicle speed over time. The vertical
axis shows the vehicle speed in MPH. The horizontal axis shows the time in seconds.
The value at any point along the curve is obtained by placing the mouse cursor over a data
point.

Dyno Run Dialog (Acceleration)

The Dyno Run dialog acquires the data from an acceleration run.

80 Dyno Operation
 Figure 38: Acceleration Run Dialog
Two files are required to perform an acceleration run: an Acceleration file and a Dyno Setup
file. The Acceleration file is the destination for the collected run data. The Dyno Setup file
provides the operational parameters used by the software to compute a 1/4-mile horsepower
figure. Both file types are created from the File > New menu option.
The Status field shows the current status of the run, either:
Idle – no data is being gathered.
Waiting to Start – waiting for the vehicle to start moving.
Collecting Data – vehicle data is being recorded.

Performing an Acceleration Run

Before the run, ensure the laptop, cables and OBD II adapter are securely fastened out of the
way and do not interfere with vehicle operation.
Once the Acceleration file and Dyno Setup files are selected, press the Start Run button.
The acceleration run is performed from a standing start. Once the Status field says “Waiting to
Start”, the software is waiting for the vehicle to start accelerating. The acceleration run does
not use RPM like a power torque run does. Therefore, while waiting to accelerate you may rev
the motor or do whatever else you think will achieve the quickest acceleration time.
As you accelerate down the track, you may stop the acceleration run at different data points
depending on the data you’re trying to collect.
60 MPH – if acceleration stops after 60 MPH is reached, the 0-60 time will be
computed.
1/8 mile – if acceleration stops after 1/8 mile reached, the 1/8-mile time and speed is
computed.
1/4 mile – if acceleration stops after 1/4 mile reached, the 1/4-mile time and speed is
computed. In addition, a 1/4-mile horsepower value is computed.
Its best to accelerate slightly beyond a data point to ensure the software captures the vehicle
passing through the data point at maximum acceleration. For instance, don’t let off the

81 Dyno Operation
accelerator at exactly 60 MPH. Accelerate just beyond 60for approximately ½ second to
achieve the best results.
Bring the vehicle to a complete stop and press the Done button to stop data collection.

Acceleration Run Do’s and Don’ts

For safety and the most accuracy from the Dyno software, please follow the guidelines below.
Keep your attention on driving – the software is designed to require no user intervention
when a run is performed.
Consistent vehicle setup – use the same tire pressure, same number of passengers, no A/C,
windows rolled up, low beams on, radio and other accessories off.
Head/Tail Wind – a windy day will skew the acceleration results higher or lower depending
on the wind direction. A relatively calm day provides the best results.
Level Ground – an uphill climb will make the acceleration lower and conversely a downhill
run will have higher than expected values. Level ground provides the best results.
Heat soak – repeated runs will cause the intake manifold temperature to increase. Hot air is
less dense and causes a reduction in power/torque. Just note that the first run may have
slightly faster values than subsequent runs if performed back-to-back.
Accelerate Just Past Data Point - accelerate slightly beyond a data point (e.g. 60 MPH, 1/8
mile, or 1/4 mile) to ensure the software captures the vehicle passing through the data point
at maximum acceleration
If the vehicle’s tire size is either smaller or larger than stock and the speedometer has not been
recalibrated to the new wheel size, then the computed acceleration figures will be incorrect.
Acceleration runs require an accurate speedometer.

Acceleration Run Statistics

The Run Statistics screen computes times and horsepower values based upon how fast the
vehicle accelerates.
Top Speed – maximum speed achieved during the run.

0 to 60 Time – how fast in seconds the vehicle traveled from 0 to 60 MPH.

1/8 Mile Speed – how fast in MPH the vehicle was traveling at the 1/8-mile mark.

1/8 Mile Time – time in seconds, the vehicle traveled a 1/8-mile.

1/4 Mile Speed – how fast in MPH the vehicle was traveling at the 1/4-mile mark.

1/4 Mile Time – time in seconds, the vehicle traveled a 1/4-mile.

1/4 Mile HP – a rough calculation of horsepower based strictly on 1/4-mile time and
vehicle weight.

82 Dyno Operation
N/A will be displayed in a column if the vehicle didn’t travel far enough to compute the
statistic.

83 Dyno Operation
 CHAPTER 7
Google Earth

Google Earth is a geographic information system (GIS) and provides a 3D software

representation of Earth using satellite imagery. It provides you with the ability to move about
the Earth and view any location on the planet from any altitude or viewing angle. Google Earth
is a free application and may be downloaded from http://earth.google.com. Ensure you are
running version 4.1 or higher.
DashDyno and Dyno-Scan for Windows utilize Google Earth to correlate recorded vehicle
sensor data with the vehicle’s georeferenced position on Earth. This is an extremely powerful
tool in analyzing vehicle data whether on a racetrack, off road or around town.
DashDyno records OBD II vehicle sensors data, analog voltages and GPS data onto the SD card.
Dyno-Scan for Windows then opens the file and if it contains GPS data, Dyno-Scan for
Windows interactively sends coordinate information to Google Earth. You do not need to
interact with Google Earth –Dyno-Scan for Windows updates the camera position and viewing
angles automatically.
The Google Earth feature within the Dyno-Scan for Windows software may only be used in
conjunction with an Auterra DashDyno SPD data logger. Dyno-Scan for Windows cannot
connect to a GPS and will not record GPS data. The software reads GPS data recorded by an
Auterra DashDyno.

84 Google Earth
When a DashDyno live data file containing GPS data is opened, Google Earth draws a yellow
line showing the complete vehicle path and flies to that location. Moving the data cursor on
the Analyze Live Data screen causes Google Earth to immediately fly to the new location on
the yellow line. The Google Earth yellow pushpin shows the current GPS location within the
data file.
Two Google Earth view modes are supported: Stationary and Follow Vehicle. In stationary
mode, the Google Earth view elevation and position does not move. This is useful if you want
to see the entire vehicle path. In Follow Vehicle mode, Google Earth zooms to the vehicle
georeferenced location.
If the Play button on the Playback Control toolbar is pressed, the line graph data within the
Analyze Live Data window starts to move and the Google Earth position continually updates
during playback. If the Follow Vehicle option is selected, you will follow behind the vehicle
position as it moves.
To analyze a DashDyno live data file:
1 Using your DashDyno and GPS receiver, record GPS and vehicle sensor data. See the
DashDyno SPD User Guide for more information on recording data using DashDyno.

85 Google Earth
2 Eject the SD card from DashDyno and insert into your PC card reader connected to your
computer.
3 Start the Dyno-Scan for Windows software.
4 Go to the Tools > Options dialog then select the Google Earth tab.
5 Check the Enable Google Earth checkbox. Press OK.
6 Select the File > Open > Live Data File menu option.
7 Go to the PC card reader drive and open the DashDyno live data file. Live data files are
stored on the SD card within the LIVE directory (e.g. f:\LIVE\MY_DATA.ld).
8 Google Earth will start automatically when the file is opened. A yellow vehicle path line is
drawn and the camera zooms over the entire vehicle path.
9 Select the Analyze Live Data icon on the Navigation docking window.
10 Press the Data Cursor button on the Analyze Tool Bar.
11 Left mouse click the data cursor and drag it to a new location. Google Earth will reposition
to the vehicle’s georeferenced location as recorded within your data file.
12 Press the Play button on the Playback Control toolbar. The line graph will start to move
and Google Earth will continually update its position during playback.
See Analyze Live Data Screen on page 61 for more information on how to use Analyze Live
Data screen.

Google Earth Options

Dyno-Scan for Windows has settings to control how GPS data is displayed within Google Earth.
The user’s point of view within Google Earth is called a camera position. The camera position
can be adjusted for altitude and viewing angle.
The Google Earth settings with the Dyno-Scan for Windows Tools > Options dialog are:
Enable Google Earth – when checked, Google Earth is used to display GPS position
information from within a live data file.
Playback Mode – the Stationary option holds the camera position and attitude steady
during playback. The camera position when the Play button is pressed is used as the
stationary position. The Follow Vehicle option zooms the camera behind the vehicle
position. When the vehicle position is updated, the camera view will follow.
GPS Heading Camera View – uses the heading (i.e. direction of travel) from the GPS
to orient the camera view. During playback, the camera point of view always faces the
vehicle’s direction of travel. Otherwise, the camera points north.
Playback Speed – controls the playback speed.
Refresh Rate – controls how often Google Earth is sent GPS positional data.
Camera Tilt Angle – controls the tilt of the camera position. 0 degrees looks straight
down and 80 degrees looks toward the horizon.

86 Google Earth
 Camera Range – controls how far from the ground the camera is positioned.
Enable Automatic Window Tiling – when checked, the software vertically tiles Dyno-
Scan and Google Earth so both application windows are visible.
Tile Percentage – the horizontal percentage of screen width Google Earth will
occupy. The Google Earth toolbar prevents Google Earth from sizing to a small
horizontal screen width. To allow a small screen width, uncheck the menu View >
Toolbar within Google Earth.

Improving Playback Speed

The Analyze Live Data screen Playback feature can be slow on an older computer. If this is the
case, here are some tips:

87 Google Earth
1 On Dyno-Scan, slow the Refresh Rate and/or Playback Speed. For instance, setting a
playback speed of 0.2 seconds and a refresh speed of 1.0 second’s means every 5th data
point Google Earth will receive a new GPS coordinate.
2 On Dyno-Scan, turn off the round markers by selecting the Options button pull down on
the Analyze Live Data title bar and unchecking Show Markers.
3 On Google Earth’s Tools > Options… dialog, set the Detail Area to Small and set the
Terrain Quality to Lower. Its best to restart Google Earth after making changes.
4 On Google Earth’s Layers sidebar, uncheck unused options such as Roads, Terrain, Dining,
etc…
5 On Google Earth, select the View > Sidebar menu option to hide the sidebar. This will
prevent needless refreshing of the sidebar during playback.

Working Without an Internet Connection

Google Earth obtains satellite imagery from the Internet. If you want to use Google Earth away
from the Internet (e.g. at track day), you’ll need to cache the images to your computer disk
drive.
To cache satellite imagery, while connected to the Internet move the Google Earth view
around the location you want to view when not connected to the Internet. As you fly around,
look at the area from different directions and attitudes. This will cause the satellite images to
be stored within the Google Earth memory cache for use when offline.
If necessary, the Google Earth cache can be increased by going to the Tools > Options menu
then select the Cache tab.

88 Google Earth
 CHAPTER 8
Demo Mode

Demonstration mode simulates all vehicle data. This mode facilitates learning about scan tool
features without connecting to a live vehicle.

Enable Demo Mode

Demo mode is enabled from the File > Connect dialog.
1 Select the “Connect to Vehicle Demo” checkbox on the Connect screen.

Figure 39: Connect to Vehicle Demo

2 Press the “Connect to Vehicle” button. With demo mode enabled, all vehicle data is
simulated – even if the scan tool is connected to a vehicle.

89 Demo Mode
 CHAPTER 9
Exporting Files

Four different export formats available within the software.

1 Single-Point Row CSV File
2 Multi-Point Row CSV File
3 TrackVision File
4 Analyze Live Data Save
All file formats may be imported into a spreadsheet application such as Microsoft Excel. Once
the data is imported into the spreadsheet, numerous data manipulations are possible such as
graphing and analyzing the data.

Single-Point Row CSV File Format

This file format exports the data into a one-data point per row format. Each row within the
spreadsheet corresponds to one data sample. The sample time on each row is the exact time
the data sample was taken.
The CSV file is a tabular format of data placed into rows and columns. The first row contains
basic file information:
File Name – the name of the PDB file.
Make – make of the vehicle.
Year – the year of the vehicle.
VIN – the optional VIN number field.
Note – the optional note field.

90 Exporting Files
 Figure 40: Single-Point Row CSV File in Excel
The second row contains the column headings for the scan data. Metric values are always
included in the CSV file, however if there is no corresponding English units of measure for a
sensor then no conversion is shown.
Sample – the sample number.
Name– the parameter name.
Sample Time – the time stamp when the data was sampled in seconds.
Value Metric – the sensor value in Metric units.
Units Metric – the Metric units of measure.
Value English – the sensor value in English units.
Units English – the English units of measure.
To export a live data Single-Point Row CSV File:
1 Select the File > Export > Single-Point Row CSV File… menu option.
2 On the Open Source Export File dialog, select the file type “Live Data File (*.ld)” on the
“Files of type:” dropdown.
3 Within the same Open Source Export File dialog, go to the directory where the live data
file is stored in. Click the “Look in:” dropdown to change directories.

91 Exporting Files
4 Single click to highlight the live data file then press the Open button. Alternatively, double
click the live data file.
5 On the Save Destination CSV File dialog, type a file name within the “File name:” box and
press the Save button.
6 The data is now exported to the CSV file name you entered.

Multi-Point Row CSV File

This file format exports the data in a multiple data points per row format. Each row within the
spreadsheet corresponds to one or more data samples.
The data arrives from the vehicle at different times. A single time stamp cannot accurately
identify the exact moment when multiple vehicle samples arrive4. Therefore, the sample time
used on each row is the time of the last sensor to be sampled on that row. The order of the
columns is not important and does not indicate the order in which the sensors were sampled.
All the sampled data within a certain time period is combined into a single row. If a new data
sample is not available for a row within the time period, then the last known good data sample
is inserted instead.
The multi-point row CSV file format may be easier to use than the single-point row CSV format
at the expense of loosing the exact time stamp for each data sample point.

Figure 41: Multi-Point Row CSV File in Excel

4
On CAN bus equipped vehicles with CAN 6x mode enabled up to 6 sensors can be
simultaneously sampled from the vehicle.

92 Exporting Files
To export a live data Multi-Point Row CSV File:
1 Select the File > Export > Multi-Point Row CSV File… menu option.
2 On the Open Source Export File dialog, select the file type “Live Data File (*.ld)” on the
“Files of type:” dropdown.
3 Within the same Open Source Export File dialog, go to the directory where the live data
file is stored in. Click the “Look in:” dropdown to change directories.
4 Single click to highlight the live data file then press the Open button. Alternatively, double
click the live data file.
5 On the Save Destination CSV File dialog, type a file name within the “File name:” box and
press the Save button.
6 The data is now exported to the CSV file name you entered.

TrackVision CSV File

TrackVision is a 3rd party software package that merges in-car video recorded with a camcorder
and vehicle data recorded with DashDyno. The TrackVision software synchronizes the video
and data and creates a virtual dashboard overlay within your video. Engine RPM, throttle
position, vehicle speed, GPS position and more can be displayed.
The resulting movie is exported to different video file formats or a DVD. TrackVision can be
purchased at www.trackvision.net.
To export a Live Data file into a format suitable for import within TrackVision, select the File >
Export > TrackVision File… menu option.
For more information on using TrackVision, refer to Auterra’s DashDyno SPD User Guide.

Analyze Live Data Save

The Save icon on the Analyze Live Data Screen toolbar exports a .dat file. This tab delimited file
may be imported into a spreadsheet using a spreadsheet import data feature.
See Save Button on page 66 for more information regarding the Analyze Live Data Save
button.

Merge Files
The File > Export > Merge Files… menu option merges two or more live data files into a new,
merged live data file. The merged file can then be opened using the File > Open > Live Data
File… menu option or exported to a CSV file for viewing inside a spreadsheet.
The Merge Files feature is particularly useful when merging Auto-Record live data files created
on an Auterra DashDyno SPD device. Auto-Record allows recording data over days, weeks or
months over which time multiple live data files are saved. Using the Merge Files feature, these
discrete live data files are merged into a single live data file for a complete long-term data
view. See the DashDyno SPD user guide for more information regarding the Auto-Record
feature.

93 Exporting Files
Note these key points when using the Merge Files feature:
• Only merge live data files with the same recorded parameters - For instance, if you
have two files both with Engine RPM and Vehicle Speed merging will combine these
two files into a single combined new file. However, if you have two files, one with
Engine RPM and Vehicle Speed and the other with say Coolant Temperature, the two
files don’t share recorded parameters and thus will not result in a correctly merged file.
• The order of files selected on the Merge Input Files dialog is the order of merging
– The Merge Input Files dialog allows highlighting two or more files. The order of the
files in the “File name:” box is the order in which the files are merged. The files listed
first in the “File name:” box will the first in the output file, and so on, until the last file.
For instance, if the “File name:” box shows “AR_1.ld” “AR_2.ld” “AR_3.ld” this means
AR_1.ld is added to the merged file first, then AR_2.ld, then finally AR_3.ld.
Press and hold the CTRL key and click one file at a time in the Merge Input Files dialog.
Click the oldest recorded file first up to the newest in order. This will create the files
within the “File name:” box in the correct newest-to-oldest order.
Alternatively, press and hold the SHIFT key and click the oldest file first, then click the
newest file. This will select a range of files in a newest-to-oldest order.
• Merge smaller subset of your data if single merged file is too large – If the merged
live data file is too large to be opened on your PC, create multiple merged live data
files. For instance, if you have 200 live data files, merge 100 into one file and 100 into
another then analyze each file independently.
• Corrupt file data is ignored during a merge – If the DashDyno is accidentally
unplugged during a recording, some data might be lost because the file did not save
to the SD card. Normally a File > Open will not open a partially saved file. However, the
Merge Files feature will try to exact as much data as possible from a partially saved file.
If no data can be extracted, the file is ignored and the next merge file is processed.
Over time, the Auto-Record feature on DashDyno saves data to multiple files reducing
the amount of data lost if unplugged during recording.
To merge live data files:
1 Select the File > Export > Merge Files… menu option.
2 On the Merge Input Files dialog, select the two (or more) live data files to merge.
Press and hold the CTRL key and click one file at a time in the Merge Input Files dialog.
Click the oldest recorded file first up to the newest in order. This will create the files within
the “File name:” box in the correct newest-to-oldest order.
Alternatively, press and hold the SHIFT key and click the oldest file first, then click the
newest file. This will select a range of files in a newest-to-oldest order.
For instance, if the “File name:” box shows “AR_1.ld” “AR_2.ld” “AR_3.ld” this means
AR_1.ld is added to the merged file first, then AR_2.ld, then finally AR_3.ld.
3 Once the files are selected, press the Open button.

94 Exporting Files
4 On the Merge Output File dialog, type a file name within the “File name:” box and press
the Save button. This is the destination for the merged file output.
5 The data is merged to the file name you entered.

95 Exporting Files
 CHAPTER 9
PID Builder

PID Builder is an advanced feature of the Dyno-Scan software to create unique live data
parameters to be viewed and recorded on the Live Data screen. PID Builder allows direct
interaction with the vehicle computer to create custom PIDs (parameter IDs). Custom PIDs
definitions are saved to a .pid file to be opened and used by the software.
The Dyno-Scan software contains all the industry-standardized parameters for OBD II
equipped vehicles. For instance, Engine RPM and Coolant Temperature are standardized
parameters. Each vehicle is also equipped with additional enhanced parameters that are
unique to a particular make and/or model vehicle. The PID Builder allows you to tap into these
enhanced parameters for your car by creating custom PID definitions.
After a PID is tested on the PID Builder screen, it can be saved as a .pid file. The .pid files are
automatically opened by the Dyno-Scan for Windows software and added to the Edit
Parameters dialog to be selected for live data viewing.
Auterra may offer some commonly requested PID files for download and use with your
software. This way, you’ll just need to download the PID files appropriate for your vehicle
without detailed knowledge of the OBD II protocol.
For advanced users, information about enhanced PIDs may be also be located on the Internet
or news forums discussing your specific vehicle, or discovered interactively using the PID
Builder dialog.

Install Existing PID Files

The Dyno-Scan software reads the PID files from the My Documents\Dyno-Scan directory.
Any PID files located in this directory are read at startup. Displaying the Edit Parameters dialog
from the Live Data screen will show the parameters loaded from the PID Files.
1 Download or create a PID File.
2 Copy the PID File into the My Documents\Dyno-Scan directory.
3 Go to the Live Data screen and open the Edit Parameters dialog. The PID File parameter
will be listed in the Parameters box. In the sample below, Trans Temp is the parameter
name.

96 PID Builder
OBD II Protocol Background
On-Board Diagnostics II is the industry standard for communicating with the vehicle using
scan tool equipment such as the Dyno-Scan for Windows.
A bit of knowledge about the OBD II communication protocol used on the vehicle is essential
to effectively using PID Builder. This section provides a brief tutorial on OBD II. However, the
Internet has many detailed articles covering OBD II in more detail.
Generic messages are well-defined industry standards that all carmakers adhere to. Enhanced
messages are defined by each manufacturer to support unique features.
OBD II defines Modes and PIDs (parameter IDs). The generic Mode 01 is used to display live
data. PID 0C, for instance, is used to extract engine RPM.
In additional to Mode and PID information, there is additional header information. This can
change depending on whether the query is generic or enhanced. It can also change
depending on the exact protocol being used.
The OBD II standard is actually comprised of many different protocols. VPW, PWM, ISO, KWP
and CAN bus. The meaning of these acronyms is not important, only that the scan tool uses
these different protocols depending on the vehicle make/model/year.
After connecting to the vehicle, the Dyno-Scan software shows the protocol in the lower left
corner of the screen next to the “Connected”.
Table 7: Header Bytes (Generic)
PWM 61 6A F1
VPW 68 6A F1

97 PID Builder
 ISO 68 6A F1
KWP C2 33 F1
CAN (SI 250k), CAN (SI 500k) 00 00 07 DF
CAN (EI 250k), CAN (EI 500k) 18 DB 33 F1

The enhanced messages may change the header bytes. Here are some examples of enhanced
header bytes. This is not an exhaustive list, but just a few samples.
Table 8: Header Bytes (Enhanced)
PWM C4 10 F1
VPW 6C 10 F1
ISO 6C 10 F1
CAN (SI 250k), CAN (SI 500k) 00 00 07 E0

A complete non-CAN message example to request engine RPM. A PID may be one or two
bytes depending on the parameter requested.
Header Bytes Mode PID
68 6A F1 01 0C

A complete non-CAN message response to the engine RPM. The Mode has 40 added to the
original Mode 01. The engine RPM data will be returned in the last two bytes.
Header Bytes Mode PID Data Data
48 6B 10 01 0C ?? ??

A complete CAN message example to request engine RPM. Length is the number of bytes
after the header bytes. A PID may be one or two bytes depending on the parameter
requested.
Header Bytes Length Mode PID
00 00 07 DF 02 01 02

A complete CAN response to the engine RPM request. The length is the number of bytes after
the header. The Mode has 40 added to the original Mode 01. The engine RPM data will be
returned in the last two bytes.
Header Bytes Length Mode PID Data Data
00 07 E0 04 41 0C ?? ??

PID Builder Dialog

The PID Builder is used to create PID files. The dialog is interactive meaning the data is send,
received and displayed on the dialog allowing you to refine the PID in real-time.

98 PID Builder
The PID Builder dialog has these fields:
Vehicle Send Message – the message bytes sent to the vehicle.
Send Button – to send the Vehicle Send Message to the vehicle for interactive testing.
Vehicle Recv Message – the raw data bytes received from the vehicle. Each hexadecimal byte
is separated by a hyphen (‘-‘).
Name – the name of the parameter. This is the name shown on the Live Data screen.
Units – the parameter units of measure.
Min Value – the minimum value of the parameter. This is only used for scaling graph controls
and doesn’t affect the value displayed.
Max Value – the maximum value of the parameter. This is only used for scaling graph controls
and doesn’t affect the value displayed.
Scale – the scale factor applied to the measured parameter data.
Offset – the offset applied to the measured parameter data.
Precision – the decimal places of precision for the measured parameter data.
Value Bit Offset – the starting bit location of the measured parameter data. Each data byte is
8-bits.
Value Bit Length – the length of the measured parameter data.
Vehicle Recv Decoded Message – the fully decoded message using the supplied name, units,
scale, offset, precision, value bit offset and value bit length. This is the value that will display
on the Live Data screen.
Open PID – Opens a PID File.
Save PID – Saves the dialog information to a PID File.

99 PID Builder
 Figure 42: PID Builder Dialog
In the example shown above, within the Vehicle Recv Raw Message window notice the data
returned from the vehicle.
00-07-33-04-41-0C-3E-3E-00-00
This is a CAN protocol message and the engine RPM data is located in 7th and 8th bytes: 3E and
3E.
Value Bit Offset is where the data starts, so in this example:
48 bits = 6 bytes x 8 bits per byte
Value Bit Length is how long the data is. Engine RPM is two bytes so:
16 bits = 2 bytes x 8 bites per byte
The hexadecimal 3E3E converted to decimal is 15934. The formula used in the scale and offset
is:
Displayed Value = (Data x Scale) + Offset

100 PID Builder

 3984 RPM = (15934 x 0.25) + 0

Create PID File

1 Select File > Connect to connect to the vehicle.
2 Select Tools > PID Builder… to open the PID Builder dialog.
The dialog will be pre-populated with header, Mode and PID information to create an
Engine RPM PID file based on the current vehicle protocol (e.g. VPW, CAN, …).
3 Change the Vehicle Send Message to custom PID, or just accept the default values.
4 Press Send.
5 Notice the Vehicle Recv Raw Message and Vehicle Receive Decoded Message are
populated. Verify these are correct per your PID information.
6 Press the Save PID button. Create a name for the PID File and store the file in the My
Documents\Dyno-Scan folder.
7 Press OK to close the PID Builder dialog.
8 Go the Live Data screen.
9 Right mouse click in a List or Graph pane. Select Edit Parameters from the popup shortcut
menu.
10 Press Add Parameter.
11 The Name on PID Builder that you supplied for your PID will display in the Parameters box.
12 Select the parameter and press OK.
13 The data for your newly created PID will start to display on-screen.

Open PID File

1 Select Tools > PID Builder… to open the PID Builder dialog.
2 Press Open PID.
3 Open any .pid file. The data on PID Build will update showing the contents of the PID File.

101 PID Builder

 CHAPTER 10
Troubleshooting

This section contains solutions for common problems encountered with the scan tool.

Scan Tool Connects but No Live Data

If no live data is displayed in the Live Data screens, try the following remedies:
1 Right mouse click in a Graph or List pane and select “Edit Parameters” from the shortcut
menu and add the parameters you want to monitor.
2 Disable the Fast Sampling option in the Tools > Options dialog.
3 Disable the CAN 6x Communication option in the Tools > Options dialog.

Can’t Open COM Port

The COM port is either busy or does not exist, try the following remedies:
1 Ensure the USB or Bluetooth drivers are installed correctly. See sections USB Driver
Installation or Bluetooth Driver Installation depending on your adapter type.

No Communication (Scan Tool)

If the No Communication (Scan Tool) dialog appears, this means the software cannot
communicate with the vehicle. Try the following remedies:
1 Ensure the vehicle ignition is turned on. Vehicle does not have to be running; however, it
can be.
2 Try pressing the “Connect to Vehicle” button again.
3 Ensure the OBD II Adapter is securely plugged into the vehicle’s OBD II connector.
4 Ensure the vehicle is OBD II compliant (see Supported Vehicles).
5 Ensure no vehicle fuses are blown. OBD II adapter power is derived from the vehicle and a
blown fuse could prevent power from reaching the scan tool. Sometimes the OBD II
connector and cigarette lighter share the same fuse.
6 Ensure the USB or Bluetooth drivers are installed correctly. See sections USB Driver
Installation or Bluetooth Driver Installation depending on your adapter type.
7 Ensure the Bluetooth adapter is paired with your PC. See Bluetooth Pairing for more
information.

102 Troubleshooting
8 Ensure the PC is connected to the Bluetooth device. You may need to go to My Bluetooth
Places, right mouse click on the RN42 device and select “Connect”.
9 Ensure you have entered the pairing or passkey for the Bluetooth adapter. The passkey is:
1234.

No Communication (Vehicle)
If the No Communication (Vehicle) dialog appears, see No Communication (Scan Tool).

Lost Communication
If the Lost Communication dialog appears, this means the software initially established
communication but subsequently lost it. Try the following remedies:
1 Ensure the OBD II Adapter is securely plugged into the vehicle’s OBD II connector.

Live Data Screen Is Blank

Right mouse click in the center of the screen and select “Add List Pane” or “Add Graph Pane”
from the shortcut menu to add new panes.

Oxygen Sensors Test Results Pane is Blank

Not all vehicles support the features provided by the Oxygen Sensor screen. If the vehicle does
not support this feature, the data for the screen will be blank.

Freeze Frame Pane is Blank

If the vehicle has not detected a failure that caused the Check Engine to illuminate, the data
for the Freeze Frame pane will be blank.

Clearing Codes Did Not Work or MIL Didn’t Turn Off

There are a few possible causes for the check engine light not to extinguish or the DTCs to
reappear on the scan tool. First, if the problem is not fixed the DTC may return immediately for
problems such as misfires, open or shorted sensors, etc. Second, some vehicles can't be
running when the memory is cleared. In these cases, ensure the key is on but the engine is off
before attempting to clear the memory. Last, some vehicles require, after the codes are
cleared, for the ignition key to be turned off and then on again before the MIL light actually
turns off.

103 Troubleshooting
 APPENDIX A
Diagnostic Trouble Codes

A Diagnostic Trouble Code (DTC) is a 5-digit value starting with a letter.

The DTC’s codes listed here are generic to all manufacturers. These generic Diagnostic Trouble
Codes are those codes where industry uniformity has been achieved. However, each vehicle
manufacturer may optionally create new codes beyond the generic ones. The Auterra Dyno-
Scan™ for Windows can read these enhanced manufacturer specific codes.
The DTC database files included with the software incorporates thousands of more codes,
both generic and enhanced, than those listed here. The following listing simply provides an
overview of the types of codes available.

Diagnostic Trouble Code Format Structure

The Diagnostic Trouble Code numbering follows a standardized structure. All Diagnostic
Trouble Codes have a letter followed by a 4-digit number (e.g. P1234). The first letter indicates
the type of code:
P = Powertrain
C = Chassis
B = Body
U = Network Communication

The remaining 4-digit number specifies the problem within that system.

P00XX Fuel and Air Metering and Auxiliary Emission Controls

P0010 “A” Camshaft Position Actuator Circuit (Bank 1)
P0011 “A” Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0012 “A” Camshaft Position - Timing Over-Retarded (Bank 1)
P0013 “B” Camshaft Position - Actuator Circuit (Bank 1)
P0014 “B” Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0015 “B” Camshaft Position -Timing Over-Retarded (Bank 1)

P0020 “A” Camshaft Position Actuator Circuit (Bank 2)

P0021 “A” Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0022 “A” Camshaft Position - Timing Over-Retarded (Bank 2)
P0023 “B” Camshaft Position - Actuator Circuit (Bank 2)
P0024 “B” Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0025 “B” Camshaft Position - Timing Over-Retarded (Bank 2)

P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1)

P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0033 Turbo Charger Bypass Valve Control Circuit

104 Diagnostic Trouble Codes

P0034 Turbo Charger Bypass Valve Control Circuit Low
P0035 Turbo Charger Bypass Valve Control Circuit High
P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)

P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3)

P0043 HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
P0044 HO2S Heater Control Circuit High (Bank 1 Sensor 3)

P0050 HO2S Heater Control Circuit (Bank 2 Sensor 1)

P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1)

P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2)

P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)

P0062 HO2S Heater Control Circuit (Bank 2 Sensor 3)

P0063 HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
P0064 HO2S Heater Control Circuit High (Bank 2 Sensor 3)
P0065 Air Assisted Injector Control Range/Performance
P0066 Air Assisted Injector Control Circuit or Circuit Low
P0067 Air Assisted Injector Control Circuit High

P0070 Ambient Air Temperature Sensor Circuit

P0071 Ambient Air Temperature Sensor Range/Performance
P0072 Ambient Air Temperature Sensor Circuit Low Input
P0073 Ambient Air Temperature Sensor Circuit High Input
P0074 Ambient Air Temperature Sensor Circuit Intermittent
P0075 Intake Valve Control Solenoid Circuit (Bank 1)
P0076 Intake Valve Control Solenoid Circuit Low (Bank 1)
P0077 Intake Valve Control Solenoid Circuit High (Bank 1)
P0078 Exhaust Valve Control Solenoid Circuit (Bank 1)
P0079 Exhaust Valve Control Solenoid Circuit Low (Bank 1)
P0080 Exhaust Valve Control Solenoid Circuit High (Bank 1)
P0081 Intake valve Control Solenoid Circuit (Bank 2)
P0082 Intake Valve Control Solenoid Circuit Low (Bank 2)
P0083 Intake Valve Control Solenoid Circuit High (Bank 2)
P0084 Exhaust Valve Control Solenoid Circuit (Bank 2)
P0085 Exhaust Valve Control Solenoid Circuit Low (Bank 2)
P0086 Exhaust Valve Control Solenoid Circuit High (Bank 2)

P01XX Fuel and Air Metering

P0100 Mass or Volume Air Flow Circuit
P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
P0102 Mass or Volume Air Flow Circuit Low Input
P0103 Mass or Volume Air Flow Circuit High Input
P0104 Mass or Volume Air Flow Circuit Intermittent
P0105 Manifold Absolute Pressure/Barometric Pressure Circuit
P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0109 Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
P0110 Intake Air Temperature Circuit
P0111 Intake Air Temperature Circuit Range/Performance Problem
P0112 Intake Air Temperature Circuit Low Input
P0113 Intake Air Temperature Circuit High Input
P0114 Intake Air Temperature Circuit Intermittent
P0115 Engine Coolant Temperature Circuit
P0116 Engine Coolant Temperature Circuit Range/Performance Problem
P0117 Engine Coolant Temperature Circuit Low Input

105 Diagnostic Trouble Codes

P0118 Engine Coolant Temperature Circuit High Input
P0119 Engine Coolant Temperature Circuit Intermittent
P0120 Throttle/Pedal Position Sensor/Switch A Circuit
P0121 Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
P0122 Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0123 Throttle/Pedal Position Sensor/Switch A Circuit High Input
P0124 Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
P0126 Insufficient Coolant Temperature for Stable Operation
P0127 Intake Air Temperature Too High
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

P0130 O2 Sensor Circuit (Bank 1 Sensor 1)

P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135 O2 Sensor Heater Circuit (Bank 1 Sensor 1)
P0136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)
P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141 O2 Sensor Heater Circuit (Bank 1 Sensor 2)
P0142 O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
P0143 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0144 O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
P0145 O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
P0147 O2 Sensor Heater Circuit (Bank 1 Sensor 3)
P0148 Fuel Delivery Error
P0149 Fuel Timing Error
P0150 O2 Sensor Circuit (Bank 2 Sensor 1)
P0151 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
P0152 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 O2 Sensor Heater Circuit (Bank 2 Sensor 1)
P0156 O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158 O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159 O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161 O2 Sensor Heater Circuit (Bank 2 Sensor 2)
P0162 O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164 O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165 O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167 O2 Sensor Heater Circuit (Bank 2 Sensor 3)
P0168 Fuel Temperature Too High
P0169 Incorrect Fuel Composition
P0170 Fuel Trim (Bank 1)
P0171 System too Lean (Bank 1)
P0172 System too Rich (Bank 1)
P0173 Fuel Trim Malfunction (Bank 2)
P0174 System too Lean (Bank 2)
P0175 System too Rich (Bank 2)

P0176 Fuel Composition Sensor Circuit

P0177 Fuel Composition Sensor Circuit Range/Performance
P0178 Fuel Composition Sensor Circuit Low Input
P0179 Fuel Composition Sensor Circuit High Input

106 Diagnostic Trouble Codes

P0180 Fuel Temperature Sensor A Circuit
P0181 Fuel Temperature Sensor A Circuit Range/Performance
P0182 Fuel Temperature Sensor A Circuit Low Input
P0183 Fuel Temperature Sensor A Circuit High Input
P0184 Fuel Temperature Sensor A Circuit Intermittent
P0185 Fuel Temperature Sensor B Circuit
P0186 Fuel Temperature Sensor B Circuit Range/Performance
P0187 Fuel Temperature Sensor B Circuit Low Input
P0188 Fuel Temperature Sensor B Circuit High Input
P0189 Fuel Temperature Sensor B Circuit Intermittent
P0190 Fuel Rail Pressure Sensor Circuit
P0191 Fuel Rail Pressure Sensor Circuit Range/Performance
P0192 Fuel Rail Pressure Sensor Circuit Low In put
P0193 Fuel Rail Pressure Sensor Circuit High Input
P0194 Fuel Rail Pressure Sensor Circuit Intermittent
P0195 Engine Oil Temperature Sensor
P0196 Engine Oil Temperature Sensor Range/Performance
P0197 Engine Oil Temperature Sensor Low
P0198 Engine Oil Temperature Sensor High
P0199 Engine Oil Temperature Sensor Intermittent

P02XX Fuel and Air Metering

P0200 Injector Circuit
P0201 Injector Circuit - Cylinder 1
P0202 Injector Circuit - Cylinder 2
P0203 Injector Circuit - Cylinder 3
P0204 Injector Circuit - Cylinder 4
P0205 Injector Circuit - Cylinder 5
P0206 Injector Circuit - Cylinder 6
P0207 Injector Circuit - Cylinder 7
P0208 Injector Circuit - Cylinder 8
P0209 Injector Circuit - Cylinder 9
P0210 Injector Circuit - Cylinder 10
P0211 Injector Circuit - Cylinder 11
P0212 Injector Circuit - Cylinder 12
P0213 Cold Start Injector 1
P0214 Cold Start Injector 2
P0215 Engine Shutoff Solenoid
P0216 Injector/Injection Timing Control Circuit
P0217 Engine Coolant Over Temperature Condition
P0218 Transmission Fluid Over Temperature Condition
P0219 Engine Over Speed Condition
P0220 Throttle/Pedal Position Sensor/Switch “B” Circuit
P0221 Throttle/Pedal Position Sensor/Switch “B” Circuit Range/Performance Problem
P0222 Throttle/Pedal Position Sensor/Switch “B” Circuit Low Input
P0223 Throttle/Pedal Position Sensor/Switch “B” Circuit High Input
P0224 Throttle/Pedal Position Sensor/Switch “B” Circuit Intermittent
P0225 Throttle/Pedal Position Sensor/Switch “C” Circuit
P0226 Throttle/Pedal Position Sensor/Switch “C” Circuit Range/Performance Problem
P0227 Throttle/Pedal Position Sensor/Switch “C” Circuit Low Input
P0228 Throttle/Pedal Position Sensor/Switch “C” Circuit High Input
P0229 Throttle/Pedal Position Sensor/Switch “C” Circuit Intermittent
P0230 Fuel Pump Primary Circuit
P0231 Fuel Pump Secondary Circuit Low
P0232 Fuel Pump Secondary Circuit High
P0233 Fuel Pump Secondary Circuit Intermittent
P0234 Turbo/Super Charger Overboost Condition
P0235 Turbo/Super Charger Boost Sensor “A” Circuit
P0236 Turbo/Super Charger Boost Sensor “A” Circuit Range/Performance
P0237 Turbo/Super Charger Boost Sensor “A” Circuit Low
P0238 Turbo/Super Charger Boost Sensor “A” Circuit High
P0239 Turbo/Super Charger Boost Sensor “B” Circuit

107 Diagnostic Trouble Codes

P0240 Turbo/Super Charger Boost Sensor “B” Circuit Range/Performance
P0241 Turbo/Super Charger Boost Sensor “B” Circuit Low
P0242 Turbo/Super Charger Boost Sensor “B” Circuit High
P0243 Turbo/Super Charger Wastegate Solenoid “A”
P0244 Turbo/Super Charger Wastegate Solenoid “A” Range/Performance
P0245 Turbo/Super Charger Wastegate Solenoid “A” Low
P0246 Turbo/Super Charger Wastegate Solenoid “A” High
P0247 Turbo/Super Charger Wastegate Solenoid “B”
P0248 Turbo/Super Charger Wastegate Solenoid “B” Range/Performance
P0249 Turbo/Super Charger Wastegate Solenoid “B” Low
P0250 Turbo/Super Charger Wastegate Solenoid “B” High
P0251 Injection Pump Fuel Metering Control “A” (Cam/rotor/Injector)
P0252 Injection Pump Fuel Metering Control “A” Range/Performance (Cam/Rotor/Injector)
P0253 Injection Pump Fuel Metering Control “A” Low (Cam/Rotor/Injector)
P0254 Injection Pump Fuel Metering Control “A” High (Cam/Rotor/Injector)
P0255 Injection Pump Fuel Metering Control “A” Intermittent (Cam/Rotor/Injector)
P0256 Injection Pump Fuel Metering Control “B” (Cam/Rotor/Injector)
P0257 Injection Pump Fuel Metering Control “B” Range/Performance (Cam/Rotor/Injector)
P0258 Injection Pump Fuel Metering Control “B” Low (Cam/Rotor/Injector)
P0259 Injection Pump Fuel Metering Control “B” High (Cam/Rotor/Injector)
P0260 Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector)
P0261 Cylinder 1 Injector Circuit Low
P0262 Cylinder 1 Injector Circuit High
P0263 Cylinder 1 Contribution/Balance
P0264 Cylinder 2 Injector Circuit Low
P0265 Cylinder 2 Injector Circuit High
P0266 Cylinder 2 Contribution/Balance
P0267 Cylinder 3 Injector Circuit Low
P0268 Cylinder 3 Injector Circuit High
P0269 Cylinder 4 Contribution/Balance
P0270 Cylinder 4 Injector Circuit Low
P0271 Cylinder 4 Injector Circuit High
P0272 Cylinder 4 Contribution/Balance
P0273 Cylinder 5 Injector Circuit Low
P0274 Cylinder 5 Injector Circuit High
P0275 Cylinder 5 Contribution/Balance
P0276 Cylinder 6Injector Circuit Low
P0277 Cylinder 6 Injector Circuit High
P0278 Cylinder 6 Contribution/Balance
P0279 Cylinder 7 Injector Circuit Low
P0280 Cylinder 7 Injector Circuit High
P0281 Cylinder 7 Contribution/Balance
P0282 Cylinder 8 Injector Circuit Low
P0283 Cylinder 8 Injector Circuit High
P0284 Cylinder 8 Contribution/Balance
P0285 Cylinder 9 Injector Circuit Low
P0286 Cylinder 9 Injector Circuit High
P0287 Cylinder 9 Contribution/Balance
P0288 Cylinder 10 Injector Circuit Low
P0289 Cylinder 10 Injector Circuit High
P0290 Cylinder 10 Contribution/Balance
P0291 Cylinder 11 Injector Circuit Low
P0292 Cylinder 11 Injector Circuit High
P0293 Cylinder 11 Contribution/Balance
P0294 Cylinder 12 Injector Circuit Low
P0295 Cylinder 12 Injector Circuit High
P0296 Cylinder 12 Contribution/Balance

P0298 Engine Oil Over Temperature

P03XX Ignition System or Misfire

P0300 Random/Multiple Cylinder Misfire Detected

108 Diagnostic Trouble Codes

P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0307 Cylinder 7 Misfire Detected
P0308 Cylinder 8 Misfire Detected
P0309 Cylinder 9 Misfire Detected
P0310 Cylinder 10 Misfire Detected
P0311 Cylinder 11 Misfire Detected
P0312 Cylinder 12 Misfire Detected
P0313 Misfire Detected with Low Fuel
P0314 Single Cylinder Misfire (Cylinder not Specified)

P0320 Ignition/Distributor Engine Speed Input Circuit

P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0322 Ignition/Distributor Engine Speed Input Circuit No Signal
P0323 Ignition/Distributor Engine Speed Input Circuit Intermittent
P0324 Knock Control System Error
P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329 Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330 Knock Sensor 2 Circuit (Bank 2)
P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
P0333 Knock Sensor 2 Circuit High Input (Bank 2)
P0334 Knock Sensor 2 Circuit Input Intermittent (Bank 2)
P0335 Crankshaft Position Sensor A Circuit
P0336 Crankshaft Position Sensor A Circuit Range/Performance
P0337 Crankshaft Position Sensor A Circuit Low Input
P0338 Crankshaft Position Sensor A Circuit High Input
P0339 Crankshaft Position Sensor A Circuit Intermittent
P0340 Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor)
P0341 Camshaft Position Sensor “A” Circuit Range/Performance (Bank 1 or Single Sensor)
P0342 Camshaft Position Sensor “A” Circuit Low Input (Bank 1 or Single Sensor)
P0343 Camshaft Position Sensor “A” Circuit High Input (Bank 1 or Single Sensor)
P0344 Camshaft Position Sensor “A” Circuit Intermittent (Bank 1 or Single Sensor)
P0345 Camshaft Position Sensor “A” Circuit (Bank 2)
P0348 Camshaft Position Sensor “A” Circuit Range/Performance (Bank 2)
P0347 Camshaft Position Sensor “A” Circuit Low Input (Bank 2)
P0348 Camshaft Position Sensor “A” Circuit High Input (Bank 2)
P0349 Camshaft Position Sensor “A” Circuit Intermittent (Bank 2)
P0350 Ignition Coil Primary/Secondary Circuit
P0351 Ignition Coil “A” Primary/Secondary Circuit
P0352 Ignition Coil “B” Primary/Secondary Circuit
P0353 Ignition Coil “C” Primary/Secondary Circuit
P0354 Ignition Coil “D” Primary/Secondary Circuit
P0355 Ignition Coil “F” Primary/Secondary Circuit
P0356 Ignition Coil “F” Primary/Secondary Circuit
P0357 Ignition Coil “G” Primary/Secondary Circuit
P0358 Ignition Coil “H” Primary/Secondary Circuit
P0359 Ignition Coil “I” Primary/Secondary Circuit
P0360 Ignition Coil “J” Primary/Secondary Circuit
P0361 Ignition Coil “K Primary/Secondary Circuit
P0362 Ignition Coil “L’ Primary/Secondary Circuit

P0365 Camshaft Position Sensor “B” Circuit (Bank 1)

P0366 Camshaft Position Sensor “B” Circuit Range/Performance (Bank 1)
P0367 Camshaft Position Sensor “B” Circuit Low Input (Bank 1)
P0368 Camshaft Position Sensor “B” Circuit High Input (Bank 1)

109 Diagnostic Trouble Codes

P0369 Camshaft Position Sensor “B” Circuit Intermittent (Bank 1)
P0370 Timing Reference High Resolution Signal “A”
P0371 Timing Reference High Resolution Signal “A” Too Many Pulses
P0372 Timing Reference High Resolution Signal “A” Too Few Pulses
P0373 Timing Reference High Resolution Signal “A” Intermittent/Erratic Pulses
P0374 Timing Reference High Resolution Signal “A” No Pulse
P0375 Timing Reference High Resolution Signal “B”
P0376 Timing Reference High Resolution Signal “B” Too Many Pulses
P0377 Timing Reference High Resolution Signal “B” Too Few Pulses
P0378 Timing Reference High Resolution Signal “B” Intermittent/Erratic Pulses
P0379 Timing Reference High Resolution Signal “B” No Pulses
P0380 Glow Plug/Heater Circuit “A”
P0381 Glow Plug/Heater Indicator Circuit
P0382 Glow Plug/Heater Circuit “B”

P0385 Crankshaft Position Sensor “B” Circuit

P0386 Crankshaft Position Sensor “B” Circuit Range/Performance
P0387 Crankshaft Position Sensor “B” Circuit Low Input
P0388 Crankshaft Position Sensor “B” Circuit High Input
P0389 Crankshaft Position Sensor “B” Circuit Intermittent
P0390 camshaft Position Sensor “B” Circuit
P0391 Camshaft Position Sensor “B” circuit Range/Performance (Bank 2)
P0392 Camshaft Position Sensor “B” Circuit Low Input (Bank 2)
P0393 Camshaft Position Sensor “B” Circuit High Input (Bank 2)
P0394 Camshaft Position Sensor “B” Circuit Intermittent (Bank 2)

P04XX Auxiliary Emission Controls

P0400 Exhaust Gas Recirculation Flow
P0401 Exhaust Gas Recirculation Flow Insufficient Detected
P0402 Exhaust Gas Recirculation Flow Excessive Detected
P0403 Exhaust Gas Recirculation Control Circuit
P0404 Exhaust Gas Recirculation Control Circuit Range/Performance
P0405 Exhaust Gas Recirculation Sensor “A” Circuit Low
P0406 Exhaust Gas Recirculation Sensor “A” Circuit High
P0407 Exhaust Gas Recirculation Sensor “B” Circuit Low
P0408 Exhaust Gas Recirculation Sensor “B” Circuit High
P0409 Exhaust Gas Recirculation Sensor “A” Circuit
P0410 Secondary Air Injection System
P0411 Secondary Air Injection System Incorrect Flow Detected
P0412 Secondary Air Injection System Switching Valve “A” Circuit
P0413 Secondary Air Injection System Switching Valve “A” Circuit Open
P0414 Secondary Air Injection System Switching Valve “A” Circuit Shorted
P0415 Secondary Air Injection System Switching Valve “B” Circuit
P0416 secondary Air Injection System Switching Valve “B’ Circuit Open
P0417 secondary Air Injection System Switching Valve “B” Circuit Shorted
P0416 Secondary Air Injection System Relay “A” Circuit
P0419 Secondary Air injection System Relay “B” Circuit
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0422 Main Catalyst Efficiency Below Threshold (Bank 1)
P0423 Heated Catalyst Efficiency Below Threshold (Bank 1)
P0424 Heated Catalyst Temperature Below Threshold (Bank 1)
P0425 Catalyst Temperature Sensor (Bank 1)
P0426 Catalyst Temperature Sensor Range/Performance (Bank 1)
P0427 Catalyst Temperature Sensor Low Input (Bank 1)
P0428 Catalyst Temperature Sensor High Input (Bank 1)
P0429 Catalyst Heater Control Circuit (Bank 1)
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2)
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
P0433 Heated Catalyst Efficiency Below Threshold (Bank 2)
P0434 Heated Catalyst Temperature Below Threshold (Bank 2)

110 Diagnostic Trouble Codes

P0435 Catalyst Temperature Sensor (Bank 2)
P0436 Catalyst Temperature Sensor Range/Performance (Bank 2)
P0437 Catalyst Temperature Sensor Low Input (Bank 2)
P0438 Catalyst Temperature Sensor High Input (Bank 2)
P0439 Catalyst Heater Control Circuit (Bank 2)
P0440 Evaporative Emission Control System
P0441 Evaporative Emission Control System Incorrect Purge Flow
P0442 Evaporative Emission Control System Leak Detected (small leak)
P0443 Evaporative Emission Control System Purge Control Valve Circuit
P0444 Evaporative Emission Control System Purge Control Valve Circuit Open
P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0446 Evaporative Emission Control System Vent Control Circuit
P0447 Evaporative Emission Control System Vent Control Circuit Open
P0448 Evaporative Emission Control System Vent Control Circuit Shorted
P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit
P0450 Evaporative Emission Control System Pressure Sensor
P0451 Evaporative Emission Control System Pressure Sensor Range/Performance
P0452 Evaporative Emission Control System Pressure Sensor Low Input
P0453 Evaporative Emission Control System Pressure Sensor High input
P0454 Evaporative Emission Control System Pressure Sensor Intermittent
P0455 Evaporative Emission Control System Leak Detected (gross leak)
P0456 Evaporative Emission Control System Leak Detected (very small leak)
P0457 Evaporative Emission Control System Leak Detected (fuel cap loose/off)
P0460 Fuel Level Sensor Circuit
P0461 Fuel Level Sensor Circuit Range/Performance
P0462 Fuel Level Sensor Circuit Low Input
P0463 Fuel Level Sensor Circuit High Input
P0464 Fuel Level Sensor Circuit Intermittent
P0465 EVAP Purge Flow Sensor Circuit
P0466 EVAP Purge Flow Sensor Circuit Range/Performance
P0467 EVAP Purge Flow Sensor Circuit Low Input
P0468 EVAP Purge Flow Sensor Circuit High Input
P0469 EVAP Purge Flow Sensor Circuit Intermittent
P0470 Exhaust Pressure Sensor
P0471 Exhaust Pressure Sensor Range/Performance
P0472 Exhaust Pressure Sensor Low
P0473 Exhaust Pressure Sensor High
P0474 Exhaust Pressure Sensor Intermittent
P0475 Exhaust Pressure Control Valve
P0476 Exhaust Pressure Control Valve Range/Performance
P0477 Exhaust Pressure Control Valve Low
P0478 Exhaust Pressure Control Valve High
P0479 Exhaust Pressure Control Valve Intermittent
P0480 Cooling Fan 1 Control Circuit
P0481 Cooling Fan 2 Control Circuit
P0482 Cooling Fan 3 Control Circuit
P0483 Cooling Fan Rationality Check
P0484 Cooling Fan Circuit Over Current
P0485 Cooling Fan Power/Ground Circuit
P0486 Exhaust Gas Recirculation Sensor “B” Circuit
P0487 Exhaust Gas Recirculation Throttle Position Control Circuit
P0488 Exhaust Gas Recirculation Throttle Position Control Range/Performance

P0491 Secondary Air Injection System (Bank 1)

P0492 Secondary Air Injection System (Bank 2)

P05XX Vehicle Speed, Idle Control, and Auxiliary Inputs

P0500 Vehicle Speed Sensor
P0501 Vehicle Speed Sensor Range/Performance
P0502 Vehicle Speed Sensor Circuit Low Input
P0503 Vehicle Speed Sensor Intermittent/Erratic/High
P0505 Idle Control System

111 Diagnostic Trouble Codes

P0506 Idle Control System RPM Lower Than Expected
P0507 Idle Control System RPM Higher Than Expected
P0508 Idle Control System Circuit Low
P0509 Idle Control System Circuit High
P0510 Closed Throttle Position Switch
P0512 Starter Request Circuit
P0513 Incorrect Irnmobilizer Key (“Immobilizer pending SAE J1930 approval)

P0515 Battery Temperature Sensor Circuit

P0516 Battery Temperature Sensor Circuit Low
P0517 Battery Temperature Sensor Circuit High

P0520 Engine Oil Pressure Sensor/Switch Circuit

P0521 Engine Oil Pressure Sensor/Switch Range/Performance
P0522 Engine Oil Pressure Sensor/Switch Low Voltage
P0523 Engine Oil Pressure Sensor/Switch High Voltage
P0524 Engine Oil Pressure Too Low

P0530 A/C Refrigerant Pressure Sensor Circuit

P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance
P0532 A/C Refrigerant Pressure Sensor Circuit Low Input
P0533 A/C Refrigerant Pressure Sensor Circuit High Input
P0534 Air Conditioner Refrigerant Charge Loss

P0540 Intake Air Heater Circuit

P0541 Intake Air Heater Circuit Low
P0542 Intake Air Heater Circuit High

P0544 Exhaust Gas Temperature Sensor Circuit (Bank 1)

P0545 Exhaust Gas Temperature Sensor Circuit Low (Bank 1)
P0546 Exhaust Gas Temperature Sensor Circuit High (Bank 1)
P0547 Exhaust Gas Temperature Sensor Circuit (Bank 2)
P0548 Exhaust Gas Temperature Sensor Circuit Low (Bank 2)
P0549 Exhaust Gas Temperature Sensor Circuit High (Bank 2)
P0550 Power Steering Pressure Sensor Circuit
P0551 Power Steering Pressure Sensor Circuit Range/Performance
P0552 Power Steering Pressure Sensor Circuit Low Input
P0553 Power Steering Pressure Sensor Circuit High Input
P0554 Power Steering Pressure Sensor Circuit Intermittent
P0560 System Voltage
P0561 System Voltage Unstable
P0562 System Voltage Low
P0563 System Voltage High
P0564 Cruise Control Multi-Function Input Signal
P0565 Cruise Control On Signal
P0566 Cruise Control Off Signal
P0567 Cruise Control Resume Signal
P0568 Cruise Control Set Signal
P0569 Cruise Control Coast Signal
P0570 Cruise Control Accel Signal
P0571 Cruise Control/Brake Switch A Circuit
P0572 Cruise Control/Brake Switch A Circuit Low
P0573 Cruise Control/Brake Switch A Circuit High
P0574 Cruise Control System - Vehicle Speed Too High
P0575 Cruise Control Input Circuit
P0576 Cruise Control Input Circuit Low
P0577 Cruise Control input Circuit High
P0578 through P0580 Reserved for Cruise Control Codes

P06XX Computer and Auxiliary Inputs

P0600 Serial Communication Link
P0601 Internal Control Module Memory Check Sum Error

112 Diagnostic Trouble Codes

P0602 Control Module Programming Error
P0603 Internal Control Module Keep Alive Memory (KAM) Error
P0604 Internal Control Module Random Access Memory (RAM) Error
P0605 Internal Control Module Read Only Memory (ROM) Error (Module Identification Defined by SAE J1979)

P0606 ECM/PCM Processor

P0607 Control Module Performance
P0608 Control Module VSS Output “A”
P0609 Control Module VSS Output “B”
P0610 Control Module Vehicle Options Error

P0615 Starter Relay Circuit

P0616 Starter Relay Circuit Low
P0617 Starter Relay Circuit High
P0618 Alternative Fuel Control Module KAM Error
P0619 Alternative Fuel Control Module RAM/ROM Error
P0620 Generator Control Circuit
P0621 Generator Lamp “L” Terminal Control Circuit
P0622 Generator Field “F” Terminal Control Circuit
P0623 Generator Lamp Control Circuit
P0624 Fuel Cap Lamp Control Circuit

P0630 VIN Not Programmed or Mismatch - ECM/PCM

P0631 VIN Not Programmed or Mismatch - TCM

P0635 Power Steering Control Circuit

P0836 Power Steering Control Circuit Low
P0637 Power Steering Control Circuit High
P0638 Throttle Actuator Control Range/Performance (Bank 1)
P0639 Throttle Actuator Control Range/Performance (Bank 2)
P0640 Intake Air Heater Control Circuit

P0645 A/C Clutch Relay Control Circuit

P0646 A/C Clutch Relay Control Circuit Low
P0647 A/C Clutch Relay Control Circuit High
P0648 Immobilizer Lamp Control Circuit (“Immobilizer” pending SAE J1930 approval)
P0649 Speed Control Lamp Control Circuit
P0650 Malfunction Indicator Lamp (ML) Control Circuit

P0654 Engine RPM Output Circuit

P0655 Engine Hot Lamp Output Control Circuit
P0656 Fuel Level Output Circuit

P0660 Intake Manifold Tuning Valve Control Circuit (Bank 1)

P0661 Intake Manifold Tuning Valve Control Circuit Low (Bank 1)
P0662 Intake Manifold Tuning Valve Control Circuit High (Bank 1)
P0663 Intake Manifold Tuning Valve Control Circuit (Bank 2)
P0664 Intake Manifold Tuning Valve Control Circuit Low (Bank 2)
P0665 Intake Manifold Tuning Valve Control Circuit High (Bank 2)

P07XX Transmission
P0700 Transmission Control System (MIL Request)
P0701 Transmission Control System Range/Performance
P0702 Transmission Control System Electrical
P0703 Torque Converter/Brake Switch B Circuit
P0704 Clutch Switch In put Circuit Malfunction
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0706 Transmission Range Sensor Circuit Range/Performance
P0707 Transmission Range Sensor Circuit Low Input
P0708 Transmission Range Sensor Circuit High Input
P0709 Transmission Range Sensor Circuit intermittent
P0710 Transmission Fluid Temperature Sensor Circuit

113 Diagnostic Trouble Codes

P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance
P0712 Transmission Fluid Temperature Sensor Circuit Low Input
P0713 Transmission Fluid Temperature Sensor Circuit High Input
P0714 Transmission Fluid Temperature Sensor Circuit Intermittent
P0715 Input/Turbine Speed Sensor Circuit
P0716 input/Turbine Speed Sensor Circuit Range/Performance
P0717 Input/Turbine Speed Sensor Circuit No Signal
P0718 Input/Turbine Speed Sensor Circuit Intermittent
P0719 Torque Converter/Brake Switch B Circuit Low
P0720 Output Speed Sensor Circuit
P0721 Output Speed Sensor Circuit Range/Performance
P0722 Output Speed Sensor Circuit No Signal
P0723 Output Speed Sensor Circuit Intermittent
P0724 Torque Converter/Brake Switch B Circuit High
P0725 Engine Speed Input Circuit
P0726 Engine Speed Input Circuit Range/Performance
P0727 Engine Speed Input Circuit No Signal
P0728 Engine Speed Input Circuit Intermittent
P0730 Incorrect Gear Ratio
P0731 Gear 1 Incorrect Ratio
P0732 Gear 2 Incorrect Ratio
P0733 Gear 3 Incorrect Ratio
P0734 Gear 4 Incorrect Ratio
P0735 Gear 5 Incorrect Ratio
P0736 Reverse Incorrect Ratio
P0737 TCM Engine Speed Output Circuit
P0739 TCM Engine Speed Output Circuit Low
P0739 TCM Engine Speed Output Circuit High
P0740 Torque Converter Clutch Circuit
P0741 Torque Converter Clutch Circuit Performance or Stuck Off
P0742 Torque Converter Clutch Circuit Stuck On
P0743 Torque Converter Clutch Circuit Electrical
P0744 Torque Converter Clutch Circuit Intermittent
P0745 Pressure Control Solenoid “A”
P0746 Pressure Control Solenoid “A” Performance or Stuck Off
P0747 Pressure Control Solenoid “A” Stuck On
P0748 Pressure Control Solenoid “A” Electrical
P0749 Pressure Control Solenoid “A” Intermittent
P0750 Shift Solenoid “A”
P0751 Shift Solenoid “A” Performance or Stuck Off
P0752 Shift Solenoid “A” Stuck On
P0753 Shift Solenoid “A” Electrical
P0754 Shift Solenoid “A” Intermittent
P0765 Shift Solenoid “B”
P0756 Shift Solenoid “B” Performance or Stuck Off
P0757 Shift Solenoid “B” Stuck On
P0758 Shift Solenoid “B” Electrical
P0759 Shift Solenoid “B” Intermittent
P0760 Shift Solenoid “C”
P0761 Shift Solenoid “C” Performance or Stuck Off
P0762 Shift Solenoid “C” Stuck On
P0763 Shift Solenoid “C” Electrical
P0764 Shift Solenoid “C” Intermittent
P0765 Shift Solenoid “C”
P0766 Shift Solenoid “D” Performance or Stuck Off
P0767 Shift Solenoid “D” Stuck On
P0768 Shift Solenoid “D” Electrical
P0769 Shift Solenoid “D” Intermittent
P0770 Shift Solenoid “E”
P0771 Shift Solenoid “E” Performance or Stuck Off
P0772 Shift Solenoid “E” Stuck On
P0773 Shift Solenoid “E” Electrical
P0774 Shift Solenoid “E” Intermittent

114 Diagnostic Trouble Codes

P0775 Pressure Control Solenoid “B”
P0776 Pressure Control Solenoid “B” Performance or Stuck Off
P0777 Pressure Control Solenoid “B” Stuck On
P0778 Pressure Control Solenoid “B” Electrical
P0779 Pressure Control Solenoid “B” Intermittent
P0780 Shift
P0781 1-2 Shift
P0782 2-3 Shift
P0783 3-4 Shift
P0784 4-5 Shift
P0785 Shift/Timing Solenoid
P0786 Shift/Timing Solenoid Range/Performance
P0787 Shift/Timing Solenoid Low
P0788 Shift/Timing Solenoid High
P0789 Shift/Timing Solenoid Intermittent
P0790 Normal/Performance Switch Circuit
P0791 Intermediate Shaft Speed Sensor Circuit
P0792 Intermediate Shaft Speed Sensor Circuit Range/Performance
P0793 Intermediate Shaft Speed Sensor Circuit No Signal
P0794 Intermediate Shaft Speed Sensor Circuit Intermittent
P0795 Pressure Control Solenoid “C”
P0796 Pressure Control Solenoid “C” Performance or Stuck off
P0797 Pressure Control Solenoid “C” Stuck On
P0798 Pressure Control Solenoid “C” Electrical
P0799 Pressure Control Solenoid “C” Intermittent

P08XX Transmission
P0801 Reverse Inhibit Control Circuit

P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit

P0804 1-4 Upshift (Skip Shift) Lamp Control Circuit
P0805 Clutch Position Sensor Circuit
P0806 Clutch Position Sensor Circuit Range/Performance
P0807 Clutch Position Sensor Circuit Low
P0808 Clutch Position Sensor Circuit High
P0809 Clutch Position Sensor Circuit Intermittent
P0810 Clutch Position Control Error
P0811 Excessive Clutch Slippage
P0812 Reverse Input Circuit
P0813 Reverse Output Circuit
P0814 Transmission Range Display Circuit
P0815 Upshift Switch Circuit
P0816 Downshift Switch Circuit
P0817 Starter Disable Circuit
P0818 Driveline Disconnect Switch Input Circuit

P0820 Gear Lever X-Y Position Sensor Circuit

P0821 Gear Lever X Position Circuit
P0822 Gear Lever Y Position Circuit
P0823 Gear Lever X Position Circuit Intermittent
P0824 Gear Lever Y Position Circuit Intermittent
P0825 Gear Lever Push-Pull Switch (Shift Anticipate)

P0830 Clutch Pedal Switch “A” Circuit

P0831 Clutch Pedal Switch “A” Circuit Low
P0832 Clutch Pedal Switch “A” Circuit High
P0833 Clutch Pedal Switch “B” Circuit
P0834 Clutch Pedal Switch “B” Circuit Low
P0835 Clutch Pedal Switch “B” Circuit High
P0836 Four Wheel Drive (4WD) Switch Circuit
P0837 Four Wheel Drive (4WD) Switch Circuit Range/Performance
P0838 Four Wheel Drive (4WD) Switch Circuit Low

115 Diagnostic Trouble Codes

P0839 Four Wheel Drive (4WD) Switch Circuit High
P0840 Transmission Fluid Pressure Sensor/Switch “A” Circuit
P0841 Transmission Fluid Pressure Sensor/Switch “A” Circuit Range/Performance
P0842 Transmission Fluid Pressure Sensor/Switch “A” Circuit Low
P0843 Transmission Fluid Pressure Sensor/Switch “A” Circuit High
P0844 Transmission Fluid Pressure Sensor/Switch “A” Circuit Intermittent
P0845 Transmission Fluid Pressure Sensor/Switch “B” Circuit
P0846 Transmission Fluid Pressure Sensor/Switch “B” Circuit Range/Performance
P0847 Transmission Fluid Pressure Sensor/Switch “B” Circuit Low
P0848 Transmission Fluid Pressure Sensor/Switch “B” Circuit High
P0849 Transmission Fluid Pressure Sensor/Switch “B” Circuit Intermittent

Additional Diagnostic Trouble Code Ranges

Other DTC ranges are defined for either manufacturer specific codes or under the control of
SAE (Society of Automotive Engineers) and not yet defined. This section documents these
additional ranges. Refer to your vehicle’s repair manual for manufacturer specific Diagnostic
Trouble Codes.

P09XX Transmission

P1XXX Manufacturer Controlled

P10XX Fuel and Air Metering and Auxiliary Emission Controls
P11XX Fuel and Air Metering
P12XX Fuel and Air Metering
P13XX Ignition System or Misfire
P14XX Auxiliary Emission Controls
P15XX Vehicle Speed, Idle Control, and Auxiliary Inputs
P16XX Computer and Auxiliary Outputs
P17XX Transmission
P18XX Transmission
P19XX Transmission

P2XXX SAE Controlled DTCs

P20XX Fuel and Air Metering and Auxiliary Emission Controls
P21XX Fuel and Air Metering and Auxiliary Emission Controls
P22XX Fuel and Air Metering and Auxiliary Emission Controls
P23XX Ignition System or Misfire
P24XX SAE Reserved
P25XX SAE Reserved
P26XX SAE Reserved
P27XX SAE Reserved

116 Diagnostic Trouble Codes

P28XX SAE Reserved
P29XX SAE Reserved

P3XX Manufacturer Controlled and SAE Reserved

P30XX Fuel and Air Metering and Auxiliary Emission Controls
P31XX Fuel and Air Metering and Auxiliary Emission Controls
P32XX Fuel and Air Metering and Auxiliary Emission Controls
P33XX Ignition System Misfire
P34XX SAE Reserved
P35XX SAE Reserved
P36XX SAE Reserved
P37XX SAE Reserved
P38XX SAE Reserved
P39XX SAE Reserved

117 Diagnostic Trouble Codes

 APPENDIX B
Support

Technical support is offered on our products via email. Please note technical support cannot
assist you in diagnosing and repairing your vehicle. Support is limited to operation of the scan
tool only.
When contacting technical support please provide the following information:
• Year of Vehicle (e.g. 1997)
• Make (e.g. Chevrolet)
• Model (e.g. K1500 Pickup Extended Cab)
• Problem encountered, be specific as possible. List any error messages displayed by the
software.
• Version of Auterra software located on the Help Options > About Dyno-Scan… menu.

Figure 43: About Auterra Dyno-Scan Dialog

Technical support is provided at: support@auterraweb.com.

118 Support
 APPENDIX C
Warranty Information

Auterra warranties the Dyno-Scan™ for Windows hardware for 1 year. Damage caused by
misuse or modification is not covered.
Auterra is not responsible for damage to vehicle caused by misuse or otherwise. Auterra's sole
liability is limited to the repair or replacement of the scan tool while under warranty.
When contacting Auterra for an RMA please provide the following information:
• Year of Vehicle (e.g. 1997)
• Make (e.g. Chevrolet)
• Model (e.g. K1500 Pickup Extended Cab)
• Problem encountered. Please be as specific as possible.

Contact Auterra technical support via email at: support@auterraweb.com.

119 Warranty Information

 Index

16-pin, 2, 21 Fast Sampling, 25, 71, 102

a tire diameter, 74, 75 Features, 1
accuracy, 70, 79, 82 File Properties, 33, 34, 36, 37, 72, 73, 77, 78
Aerodynamic, 70 Freeze Frame, 43, 45, 103
automatic transmissions, 70 Frontal areas, 72
CAN, 3, 40 gear ratio, 70, 72, 74, 75, 76
Check Engine, 1, 2, 3, 4, 44, 45, 103 generic, 104
COM port, 21, 22, 25, 102 Import, 67
comma separated values, 68 ISO, 3, 40, 67
correction factor, 70 KWP, 3, 40
CSV, 68, 90, 91 Live Data, 31, 36, 37, 40, 46, 47, 48, 55, 56,
57, 58, 102
demo mode, 41, 89
Lost Communication, 103
Demo mode, 42, 89
MIL, 3, 4, 45, 52, 54, 103, 113
demonstration mode, 41
No Communication, 102, 103
Demonstration mode, 89
OBD II, 2
Diagnostic Trouble Code, 2, 3, 45, 104, 116
OBD II adapter, ii, 21, 41, 69, 78, 81, 102
Diagnostic Trouble Codes, 43, 44, 45, 104,
116 OBD II Cable, 21
docking window, 34, 35, 36, 37, 38, 72, 77, OBD II compliant, 2, 3, 102
78, 80
OBD II connector, 2, 21, 102, 103
drag coefficients, 72, 73
Options, 22, 25, 27, 39, 45, 47, 48, 56, 57, 71,
DTC, 1, 3, 44, 45, 67, 103, 104, 116 102, 113, 118
dynamometers, 69 Parameter Edit, 46, 47
Dynojet, 70 PWM, 3, 40
ECU, 3, 47, 48, 56, 58, 59 RMA, 119
ECU Parameters, 48, 56, 58 RS-232 cable, 21, 78, 81
enhanced, 104 Run Statistics, 33, 38, 78, 80, 82
Export, 68 safety, 69, 79, 82

120 Index
Sample Speed, 46, 48, 57 torque converter, 70, 71, 76
Software Requirements, 2 units of measure, 1, 25, 45, 48, 59, 60, 91
spreadsheet, 90 Units of Measure, 25, 48
status bar, 40 Updates, 20
support, 118 VIN, 5, 72, 90, 113
Supported Vehicles, 3 VPW, 3, 40
tire diameter, 72, 74, 75, 76 Zoom, 57

121 Index