User Guide

ECUsim™ 2000
Multiprotocol Software Configurable
OBD-II ECU Simulator
Information contained in this document is subject to change without notice.
Trademarks are property of their respective owners.

Copyright © 2013 OBD Solutions. All rights reserved.

Printed in the United States of America.

Table of Contents
1.0 Overview ................................................................................................................ 4
1.1 General Features .................................................................................................. 5
1.2 Package Contents................................................................................................ 5
2.0 User Interface ....................................................................................................... 6
2.1 Interface Elements .............................................................................................. 6
3.0 Basic Operation .................................................................................................... 8
3.1 Setup ........................................................................................................................ 8
3.2 Using the Simulator ............................................................................................ 8
4.0 UART Communication........................................................................................ 9
4.1 Installing USB Drivers ......................................................................................... 9
4.2 Terminal Setup ..................................................................................................... 9
5.0 Software Configuration ...................................................................................10
5.1 Supported Commands ................................................................................... 10
6.0 Advanced Operation ........................................................................................10
6.1 ISO 9141-2 and ISO 14230-4 (5 Baud Init) ............................................... 10
6.2 ISO 14230-4 (Fast Init)..................................................................................... 11
6.3 SAE J1850 and ISO 15765-4 .......................................................................... 11
6.4 Monitoring OBD Traffic .................................................................................. 11
6.5 Status Messages ................................................................................................ 12
7.0 Virtual ECUs .........................................................................................................13
7.1 Engine Control Module (ECM) ..................................................................... 14
7.1.1 ECM: Mode 1 ................................................................................................ 14
7.1.2 ECM: Mode 2 ................................................................................................ 16
7.1.3 ECM: Mode 3 ................................................................................................ 16
7.1.4 ECM: Mode 4 ................................................................................................ 16
7.1.5 ECM: Mode 7 ................................................................................................ 17
7.1.6 ECM: Mode 9 ................................................................................................ 17
7.1.7 ECM: Mode A ................................................................................................ 17
7.2 Transmission Control Module (TCM) ......................................................... 18
7.2.1 TCM: Mode 1 ................................................................................................ 18
7.2.2 TCM: Mode 3 ................................................................................................ 18
7.2.3 TCM: Mode 4 ................................................................................................ 18
7.2.4 TCM: Mode 7 ................................................................................................ 19
7.3 ABS Control Module (ABS) ............................................................................ 19
7.3.1 ABS: Mode 1.................................................................................................. 19
7.3.2 ABS: Mode 4.................................................................................................. 19
7.3.3 ABS: Mode 7.................................................................................................. 19
8.0 Firmware Updates .............................................................................................20
Appendix A: Specifications .....................................................................................21
Appendix B: Revision History.................................................................................21
Appendix C: Warranty..............................................................................................21
Appendix D: Contact Information.........................................................................21

ECUsim™ 2000 User Guide 3

1.0 Overview
ECUsim 2000 is a small, lightweight, entry level benchtop simulator that can
be used for testing and development of OBD hardware and software. It
supports all legislated OBD protocols, fixed and user adjustable parameter IDs
(PIDs), diagnostic trouble codes (DTCs), freeze frames, VIN, and many other
SAE J1979 services.

The unit has five knobs assigned to common PIDs, a “fault event” button, and
indicator lights for power, connection, and MIL (Malfunction Indicator Light).
Physical connection to the scan tool is made through a standard SAE J1962
female connector.

ECUsim 2000 features a USB connection which can be used to configure the
simulator and to monitor OBD traffic.

The simulator can be purchased with any combination of “unlocked” OBD

protocols, from as few as one to as many as five. Attempting to switch to a
protocol that is locked will produce a “PROTOCOL LOCKED” message.

4 ECUsim™ 2000 User Guide

1.1 General Features
 Support for all1 legislated OBD-II protocols:
o SAE J1850 PWM
o SAE J1850 VPW
o ISO 9141-2
o ISO 14230-4 (KWP2000)
o ISO 15765-4 (CAN 250/500 kbps, 11/29 bit)
 Functional and physical addressing
 Supports three virtual ECUs: ECM, TCM, and ABS
 Five knobs assigned to frequently used PIDs:
o Coolant Temperature
o Engine Speed (RPM)
o Vehicle Speed
o Oxygen Sensor Voltage
o Mass Airflow (MAF)
 Fixed SAE J1979 modes and PIDs
 “MIL”, “Link” and “Power” indicators
 “Fault” button
 USB connection for simulator configuration and OBD traffic
monitoring
 On-the-fly OBD protocol switching
 Standard J1962F connector
 Firmware upgradeable

1.2 Package Contents

 ECUsim 2000 unit
 110/220 VAC to 12 VDC switching power supply
 US style power cable
 USB cable

1
While ECUsim 2000 supports all legislated OBD-II protocols, only the
unlocked protocols will be available for use. Currently, the protocols are
unlocked based on customer selection, prior to shipping.
ECUsim™ 2000 User Guide 5
2.0 User Interface
ECUsim 2000 can be used as a stand alone simulator, or in conjunction with a
PC. It features a number of interface elements, shown in the diagram in the
next section.

2.1 Interface Elements

6 ECUsim™ 2000 User Guide

 1. Power LED
2. Link LED
The function of this LED depends on the protocol in use:
a. ISO 9141-2 and ISO 14230-4 protocols: the LED is on while at
least one ECU is initialized. The LED dims when an OBD
message is received.
b. J1850 and CAN protocols: the LED blinks when an OBD
message is received.
3. Malfunction Indicator Light
4. Knobs assigned to the five commonly used Mode 1 PIDs.
5. Fault button
When pressed, the following happens:
a. Set MIL and number of stored DTCs (Mode 1, PID 01)
b. Generate pending, stored, and permanent* DTCs
c. Generate freeze frame data
6. Configuration DIP switch has two switches that set protocol
attributes for ISO 15765-4 (CAN). Switch number 1 is also used to
select the init type for ISO 14230-4:
a. 29 bit/11 bit. Selects CAN frame ID type.
b. 500 kbps/250 kbps. Selects CAN baud rate.
c. Fast Init/5 Baud Init. Selects the type of initialization for ISO
14230-4.
7. Diagnostic Link Connector (DLC)
8. USB connector
9. Power jack (12 VDC)

*SAE J1979 defines permanent DTCs only for ISO 15765-4 (CAN)

Use only the provided power supply to power the simulator.

Using a different power supply may cause permanent damage
which is not covered under the warranty.

ECUsim™ 2000 User Guide 7

3.0 Basic Operation
ECUsim 2000 comes with protocols unlocked according to the selection
you’ve made when placing the order, and is ready to be used out of the box.

3.1 Setup
To set up the simulator, follow these steps:

1. Use the configuration DIP switch to set the desired options.

2. Plug the power supply into an available electric outlet.
3. Plug the 12 volt end of the power supply into the power jack of the
simulator.
4. Connect the OBD connector of your OBD tester or OBD interface to
the DLC.

3.2 Using the Simulator

After the power is first applied, the green Power LED will turn on solid, and the
Link and MIL LEDs will turn on and off in sequence.

The Link light should be flashing or dimming as the messages are exchanged
between the tester and the simulator.

To generate a malfunction event, press the Fault button. Use the knobs to
adjust the values of the respective PIDs. Use the Configuration DIP switch to
configure protocol attributes for ISO 15765-4 and ISO 14230-4 (refer to Section
2.1, Interface Elements, for more information).

To display currently selected OBD protocol and for information about

switching protocols, see Section 5.0, Software Configuration.

8 ECUsim™ 2000 User Guide

4.0 UART Communication
ECUsim 2000 features a USB connection. On a Windows or Linux PC, the
drivers create a virtual COM port which allows communication using any
suitable serial port terminal (e.g., HyperTerminal).

4.1 Installing USB Drivers

To communicate with the ECUsim 2000, make sure it is powered on, and
connect it to any available USB port. If the operating system does not find &
install the drivers automatically, you can download them from FTDI’s website.

FTDI Virtual Com Port Drivers

http://www.ftdichip.com/Drivers/VCP.htm

4.2 Terminal Setup

Almost any serial port terminal emulator program can be used to
communicate with the ECUsim. Some of the popular terminals include the
HyperTerminal, RealTerm, and TeraTerm.

The default communication settings are:

 Baud rate: 115200 bps

 Data bits: 8
 Parity: none
 Stop bits: 1

Turn off local echo

ECUsim echoes back what you type, so you may want to turn off
local echo in your terminal to avoid “seeing double.”

ECUsim™ 2000 User Guide 9

5.0 Software Configuration
On startup or reset, the PIM prints the welcome banner that looks similar to
this:

STS2000 v3.1.5
(C) 2013 OBD Solutions

>

The PIM is now ready to accept user commands.

5.1 Supported Commands

For a list of supported commands, see the ECUsim Programming Manual that
can be found on the ECUsim 2000 product page, at:

http://ecusim.com/2000

6.0 Advanced Operation

This section describes the operation of the simulator in different protocol
modes. It assumes that the simulator is connected to a PC running terminal
emulation software.

6.1 ISO 9141-2 and ISO 14230-4 (5 Baud Init)

After switching to the ISO 9141-2 protocol (or ISO 14230-4 with 5 baud init
option) the simulator will print the following status message:

<WAITING FOR 5 BAUD INIT>

It will not respond to any requests until the bus is initialized. After a successful
initialization sequence, the simulator will print:

<5 BAUD INIT: OK>

At this point, the virtual ECUs will start responding to OBD requests. However,
if five seconds pass without a supported request (or a keep-alive message)
being received, the ECUs will time out and the simulator will go back to
waiting for initialization:
10 ECUsim™ 2000 User Guide
 <ALL ECUS TIMED OUT>
<WAITING FOR 5 BAUD INIT>

6.2 ISO 14230-4 (Fast Init)

After switching to the ISO 14230-4 protocol with fast init option, the simulator
will print the following status message:

<WAITING FOR FAST INIT>

It will not respond to any requests until the bus is initialized. After a successful
initialization sequence, the simulator will print:

<FAST INIT: OK>

At this point, the virtual ECUs will start responding to OBD requests. However,
if five seconds pass without a supported request (or a keep-alive message)
being received, the ECUs will time out and the simulator will go back to
waiting for initialization:

<ALL ECUS TIMED OUT>

<WAITING FOR FAST INIT>

6.3 SAE J1850 and ISO 15765-4

Protocols 1, 2, and 5 do not require initialization. Once the simulator reboots
after the set protocol command and prints the configuration summary, it will
immediately start listening to, and responding to OBD requests.

6.4 Monitoring OBD Traffic

By default, the simulator prints incoming and outgoing OBD messages
including the message headers, but without the checkbyte. Here is an
example of communication between a tester and the simulator on
J1850 PWM:

Rx: 616AF1 01 00
Tx: 416B10 41 00 BE 1B 30 13
Tx: 416B18 41 00 88 18 00 10
Tx: 416B28 41 00 00 08 00 10

J1850 VPW, ISO 9141-2, and ISO 14230-4 messages follow the same format:
each message has a three byte header followed by data bytes. ISO 15765-4

ECUsim™ 2000 User Guide 11

messages have either 11-bit or 29-bit headers. So a typical 11-bit exchange
would appear as follows:

Rx: 7DF 01 00
Tx: 7E8 41 00 BE 1B 30 13
Tx: 7E9 41 00 88 18 00 10
Tx: 7EA 41 00 00 08 00 10

Same exchange on 29-bit CAN:

Rx: 18DB33F1 01 00
Tx: 18DAF110 41 00 BE 1B 30 13
Tx: 18DAF118 41 00 88 18 00 10
Tx: 18DAF128 41 00 00 08 00 10

Monitoring can be turned off using the MON 0 command to increase the
refresh rate. To enable monitoring again, issue MON 1.

6.5 Status Messages

<UART TX OVERFLOW>
UART transmit buffer overflow detected.

<MALFUNCTION EVENT>
User pressed the Fault button.

<WAITING FOR 5 BAUD INIT>

The simulator is waiting for an ISO 9141-2 or ISO 14230-4 5 baud initialization
sequence.

<WAITING FOR FAST INIT>

The simulator is waiting for an ISO 14230-4 fast initialization sequence.

<5 BAUD INIT: OK>

Detected a successful 5 baud initialization sequence.

<FAST INIT: OK>

Detected a successful ISO 14230-4 fast initialization sequence.

<ALL ECUS TIMED OUT>

All virtual ECUs had timed out, because a supported request had not been
received within P3MAX (ISO 9141-2 and ISO 14230-4 protocols).

12 ECUsim™ 2000 User Guide

7.0 Virtual ECUs
There are three virtual ECUs: Engine Control Module (ECM), Transmission
Control Module (TCM), and Anti-lock Braking System module (ABS). The ECUs
support both physical and functional addressing, as specified in the SAE
J2178, Part 1 and ISO 15765-4 documents.

Functional address supported by the ECUs depend on the selected protocol

and, in the case of ISO 15765-4, the ID type (11-bit or 29-bit):

Protocol(s) Functional
Address
J1850 PWM $6A
J1850 VPW
ISO 9141-2
ISO 14230-4 $33
ISO 15765-4 (29-bit)
ISO 15765-4 (11-bit) $7DF

Physical address assignments also depend on the protocol and CAN ID in use,
and are summarized in the following table:

ECU ISO 15765-4 Other

(11-bit ID) Protocols
Engine Control Module (ECM) $7E0 $10
Transmission Control Module (TCM) $7E1 $18
ABS Module (ABS) $7E2 $28

29-bit ISO 15765-4, SAE J1850, ISO 9141-2, and ISO 14230-4 addresses follow
the physical address assignments outlined in SAE J2178, Part 1.

ECUsim™ 2000 User Guide 13

7.1 Engine Control Module (ECM)
The following summarizes modes, PIDs, and Infotypes supported by the PCM.

7.1.1 ECM: Mode 1

PID Description Fixed/Variable Hex Value Scan Tool

Display
00 Supported PIDs fixed BE1B3013
01-1F
01 Monitors/DTC fixed2 0007EF80 See PID 01
Count/MIL Monitors table
03 Fuel System fixed 0201 Closed Loop/
Status Open Loop
04 Calculated Load fixed 32 20%
Value
05 Engine Coolant variable, knob #1 00 to FF -40°C to +215°C
Temperature
06 Short Term Fuel fixed 3C -53.1%
Trim: Bank 1
07 Long Term Fuel fixed 46 -45.3%
Trim: Bank 1
0C Engine RPM variable, knob #2 0000 to 0.00 to
FFFF 16383.75 rpm
0D Vehicle Speed variable, knob #3 00 to FF 0 to 255 km/h
Sensor
0F Intake Air fixed 41 25°C
Temperature
10 Mass Air Flow variable, knob #4 0000 to 0.00 to
FFFF 655.35 g/s
13 Location of fixed 01 Bank 1, Sensor 1
Oxygen Sensors
14 Oxygen Sensor variable, knob #5 00 to FF 0.000 to 1.275 V
Voltage
14 Short Term Fuel fixed 80 0%
Trim
1C OBD Type fixed 01 OBD II (CARB)
1F Time Since fixed 0258 600 seconds
Engine Start
20 Supported PIDs fixed 80022001
21-3F

2
When Fault button is pressed, the MIL bit and DTC count bits change.

14 ECUsim™ 2000 User Guide

 21 Distance Traveled fixed 03E8 1000 km
While MIL is
Activated
2F Fuel Level Input fixed 80 50.2%
33 Barometric fixed 64 100 kPa
Pressure
40 Supported PIDs fixed 44000000
41-5F
42 Control Module fixed 2EE0 12 V
Voltage
46 Ambient Air fixed 3C 20°C
Temperature

7.1.1.1 PID 01 Monitors

Continuous Monitors
Monitor Supported Ready
Misfire Yes Yes
Fuel System Yes Yes
Comprehensive Component (CCM) Yes Yes
Compression Ignition Supported No
Non-continuous Monitors
Monitor Supported Ready
Catalyst Yes Yes
Heated Catalyst Yes Yes
Evaporative System Yes Yes
Secondary Air System Yes Yes
A/C System Refrigerant No
Oxygen Sensor Yes Yes
Oxygen Sensor Heater Yes Yes
EGR System Yes No

ECUsim™ 2000 User Guide 15

7.1.2 ECM: Mode 2

When the user generates a malfunction event, the following freeze frame is
stored:

PID Description Hex Value Scan Tool

Display
00 Supported PIDs 01-1F 48180000
02 DTC that Caused F.F. Storage 0100 P0100
05 Engine Coolant Temperature 8C 100°C
0C Engine RPM 4E20 5000 rpm
0D Vehicle Speed Sensor 78 120 km/h

7.1.3 ECM: Mode 3

When the MIL is on, Mode 3 reports six DTCs:

 P0100
 P0200
 P0300
 C0300
 B0200
 U0100

7.1.4 ECM: Mode 4

Issuing Mode 4 request performs the following operations:

 Turn off MIL (Mode 1, PID 1)

 Erase Freeze Frame (Mode 2)
 Erase stored DTCs (Mode 3)
 Erase pending DTCs (Mode 7)

16 ECUsim™ 2000 User Guide

7.1.5 ECM: Mode 7

When the MIL is on, Mode 7 reports four pending DTCs:

 P0107
 P0207
 P0307
 C0307

7.1.6 ECM: Mode 9

The following infotypes are supported:

Infotype Description Scan Tool Display

00 Supported Infotypes
01 VIN Message Count*
02 VIN 1G1JC5444R7252367
03 Calibration ID message count*
04 Calibration ID JMB*36761500
05 CVN Message Count*
06 CVN 1791BC82
0A ECUNAME ECU1-EngineControl

*Message count infotypes are not supported in ISO 15765-4, per SAE J1979.

7.1.7 ECM: Mode A

After the first MIL event (user pressed the “MIL” button), Mode A reports one
permanent DTC:

 P1234

This mode is only available for ISO15765-4.

SAE J1979 does not define Mode A for the SAE J1850, ISO 9141-2,
or ISO 14230-4 protocols.

Permanent DTCs cannot be erased using a Mode 04 request.

To erase this DTC, you must reset the simulator by issuing the
RESET command or cycling the power.

ECUsim™ 2000 User Guide 17

7.2 Transmission Control Module (TCM)
The following summarizes modes, PIDs, and Infotypes supported by the TCM.

7.2.1 TCM: Mode 1

PID Description Fixed/Variable Hex Value Scan Tool

Display
00 Supported PIDs fixed 88180010
01-1F
01 Monitors/DTC fixed* 00000000 All monitors not
Count/MIL supported
05 Engine Coolant variable, knob #1 00 to FF -40°C to +215°C
Temperature
0C Engine RPM variable, knob #2 0000 to 0.00 to
FFFF 16383.75 rpm
0D Vehicle Speed variable, knob #3 00 to FF 0 to 255 km/h
Sensor
1C OBD Type fixed 01 OBD-II (CARB)

*When the Fault button is pressed, the MIL bit gets set, and the DTC count bits change to reflect
the number of stored DTCs.

7.2.2 TCM: Mode 3

When MIL is on, Mode 3 reports one DTC:

 P0101

7.2.3 TCM: Mode 4

Issuing Mode 4 request performs the following operations on the TCM:

 Erase stored DTCs (Mode 3)

 Erase pending DTCs (Mode 7)

18 ECUsim™ 2000 User Guide

7.2.4 TCM: Mode 7

When MIL is on, Mode 7 reports two DTCs:

 P0102
 U1600

7.3 ABS Control Module (ABS)

The following summarizes modes, PIDs, and Infotypes supported by the ABS.

7.3.1 ABS: Mode 1

PID Description Fixed/Variable Hex Value Scan Tool

Display
00 Supported fixed 00080010
PIDs 01-1F
0D Vehicle Speed variable, knob #3 00 to FF 0 to 255 km/h
Sensor
1C OBD Type fixed 01 OBD-II (CARB)

7.3.2 ABS: Mode 4

Issuing Mode 4 request performs the following operations on the ABS:

 Erase pending DTCs (Mode 7)

7.3.3 ABS: Mode 7

When MIL is on, Mode 7 reports one DTC:

 B2245

ECUsim™ 2000 User Guide 19

8.0 Firmware Updates
The simulator features a bootloader, which allows the user to update the
device’s firmware in the field through the USB port. Updates are posted on the
ECUsim internet product page as they become available.

Once you download the update, follow the steps to update the simulator:

1. Extract the contents of the ZIP file to a folder on your computer.

2. Run StnFirmwareUpdater.exe.
3. Select the COM port associated with the ECUsim.
4. Click the Upload Firmware button to program the simulator with the
new firmware.

ECUsim Product Page

http://www.ecusim.com/2000

20 ECUsim™ 2000 User Guide

Appendix A: Specifications
Dimensions 5.0 x 3.0 x 1.12 in (127 x 76.2 x 28.4 mm)
Weight 2.5 oz (70.8 g)
Power 12 VDC @ 2A (max)
OBD Protocols SAE J1850 PWM
SAE J1850 VPW
ISO 9141-2
ISO 14230-4 (KWP2000)
ISO 15765-4 (CAN 250/500 kbps, 11/29 bit)
PC Port USB Type B
Operating Temperature -4° to 131°F (-20° to 55°C)
Operating Humidity 10 to 85%, non-condensing
Storage Temperature -40° to 185°F (-40° to 85°C)
Storage Humidity 5 to 90% non-condensing

Appendix B: Revision History

Revision B (April 23, 2013)
 Updated product page links.
 Edited section 5.1 – removed command description and referenced
programming manual.

Revision A (November 11, 2010)

 Initial release of this document.

Appendix C: Warranty
This product is covered by a one year parts and labor warranty.

Appendix D: Contact Information

OBD Solutions
1819 W Rose Garden Ln Ste 3
Phoenix, AZ 85027

sales@obdsol.com
www.obdsol.com

ECUsim™ 2000 User Guide 21