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Au SAE OBD2 CAN Simulator User Manual
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Au SAE/ISO OBD2 CAN Simulator

Au OBD2 CAN Simulator Device
Au OBD2 CAN Simulator supports both Classic OBD (SAE J1979) and OBDonUDS (SAE J1979-2)

Au OBD2 CAN Simulators are a family of devices which are capable of generating OBD2 CAN signals based on SAE J1979 (classic OBD) and SAE J1979-2 (OBDonUDS). The generated CAN signals can be used for automotive OBD2 related product development, validation, assembly line testing, incoming inspection, business demonstration, etc.

Supported Services

For SAE J1979 (ISO15031-5): Classic OBD, Service $01, $02, $03, $04, $06, $07, $08, $09, $0A are supported.

For SAE J1979-2: OBDonUDS, service ($22 $F4xx/F5xx/F7xx), ($19 $04), ($19 $42330802), ($14), ($22 $F6xx), ($19 $42330402), ($31), ($22 $F8xx), ($19 $55), ($19 $1A), ($19 $06), ($19 $56) are supported.

Note: FW 0.1B Build 07262023-01 has the ITID $17, $1A, $1B, and $1C implemented for Service $09 /$22 $F8xx (available for Engine Basic and above editions). These parameters are for developing or testing devices related to EU Regulation 2017/1151: "On Board Fuel Consumption Monitoring (OBFCM)"

Classic OBD
(SAE J1979)		 OBDonUDS
(SAE J1979-2)		 Service Definition
Service $01 Service $22
Sub F4/F5/F7XX		 Request Current Powertrain Diagnostic Data from Engine
Service $02 Service $19
Sub $04		 Request Powertrain Freeze Frame Data
Service $03 Service $19
Sub $42330802 		Request Emission-Related DTC with confirmed status
Service $04 Service $14 Clear/Reset Emission-Related Diagnostic Information
Service $06 Service $22
Sub $F6XX 		Request On-Board Monitoring Test Results for specific monitored systems
Service $07 Service $19
Sub $42330402 		Request Emission-Related DTC with Pending Status
Service $08 Service $31 Request Control of On-Board System, Test or Component
Service $09 Service $22
Sub $F8XX 		Request Vehicle Information
Service $0A Service $19
Sub $55 		Request Emission-Related DTC with Permanent Status
Service $19
Sub $06 		Request DTCExtendedDataRecord
Service $19
Sub $1A 		Request Supported DTCExtendedRecord Information
Service $19
Sub $56 		Request DTCs for a ReadinessGroup

Major Hardware Features

  • Nominal Voltage: +12V DC or +24V DC
  • Power Supply Operating range: +10V ~ +32VDC
  • Operating Electric Current: 65mA typical, 250 mA max
  • Operating Temperature: -4 ˚F to 185 ˚F (-20 ˚C to 85 ˚C)
  • TVS (Transient Voltage Suppressor) protection on CAN bus
  • Compact size: 4-1/8" L X 1-3/4"W X 7/8"H
  • Enclosure color: Black
  • 1 Buzzer
  • 3 push buttons: MENU, DOWN, UP, the OBD2 CAN signal can be adjusted by push buttons
  • 9 LED indicators: POWER, RANGE, DTC, UP+100%, DOWN+0%, 80%, 60%, 40%, 20%, Led will blink when one of these six numeric-specified control point is selected.
  • 1 RS232 interface for device setting, software update, license management, data deisplay (Plus editions), and script control (Plus and scription editions)
  • 1 DB9 male connector for Power, Ground, OBD2 CAN-H, and OBD2 CAN-L

Major Operating Features:

  • Supports two protocols: Classic OBD (SAE J1979) and OBDonUDS (SAE J1979-2) protocols
  • Supports two CAN ID: standard (11-bit) and extended (29-bit) CAN ID
  • Supports two CAN baud rate: 250K and 500K CAN baud rate
  • Supports two Ignition styles: Spark ignition and Compression ignition.
  • OBDonUDS protocol supports both DTC format: SAE J1939-73 and J2012DA (Engine Premium editions and up)
  • One button to switch CAN bus on/off
  • One button to switch between one-VIN or multiple VIN
  • Easy to use: No software setup experience or CAN/OBD2 CAN protocol configuration skills are required. After a network is connected, apply power and it will dynamically generate OBD2 CAN data when in dynamic mode.
  • Static mode or Dynamic Mode
    • Static mode outputs static OBD2 CAN signals; signals can be changed manually
    • Dynamic mode automatically changes the output value of SAE OBD2 CAN signals
    • Two modes can be switched easily (by pressing and holding both “Menu” and “Up“ buttons until a long beep is heard)
  • Capable of supporting up to 3 ECUs: Engine, Transmission, and ABS
  • Multiple Source Addresses to select from for each ECU
  • Individual DTC on/off control for each ECU (Engine premium and above editions)
  • Smart features: Recalls last operating mode at power-on, and capable of generating dynamic data.

A typical OBD2 CAN network topology with Au OBD2 CAN simulator is illustrated here:

A typical OBD2 CAN network topology with Au OBD2 CAN simulator
A typical OBD2 CAN network topology with Au OBD2 CAN simulator

Eleven editions of Au SAE OBD2 CAN simulator are now available to meet different customer needs (4 non-plus editions, 4 plus editions and 3 Script editions).

  • SIMOBD2CAN-001: Au SAE OBD2 CAN simulator Ver 1.00A, Value Package Edition
  • SIMOBD2CAN-002: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Basic Edition
  • SIMOBD2CAN-003: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Premium Edition
  • SIMOBD2CAN-004: Au SAE OBD2 CAN simulator Ver 1.00A, Vehicle Platinum Edition
  • SIMOBD2CAN-005: Au SAE OBD2 CAN simulator Ver 1.00A, Value Package Plus Edition
  • SIMOBD2CAN-006: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Basic Plus Edition
  • SIMOBD2CAN-007: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Premium Plus Edition
  • SIMOBD2CAN-008: Au SAE OBD2 CAN simulator Ver 1.00A, Vehicle Platinum Plus Edition
  • SIMOBD2CAN-009: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Basic Script Edition
  • SIMOBD2CAN-010: Au SAE OBD2 CAN simulator Ver 1.00A, Engine Premium Script Edition
  • SIMOBD2CAN-011: Au SAE OBD2 CAN simulator Ver 1.00A, Vehicle Platinum Script Edition

Function Comparision of Each Edition

ECU Classic OBD
(SAE J1979)		 OBDonUDS
(SAE J1979-2)		 Value Package Engine Basic Engine Premium Vehicle Platinum
Engine Service $01 Service $22
Sub F4/F5/F7XX		 13 supported PID 69 supported PID 69 supported PID 69 supported PID
Service $02 Service $19
Sub $04		 ✗ #00 / no freeze frame 5 freeze frame 5 freeze frame
Service $03 Service $19
Sub $42330802		 ✗ 0 Confirmed DTC 12 Confirmed DTC 12 Confirmed DTC
Service $04 Service $14 ✗ ✗ ✓ ✓
Service $06 Service $22
Sub $F6XX		 ✗ 6 supported MID 6 supported MID 6 supported MID
Service $07 Service $19
42330402		 ✗ 0 Pending DTC 4 Pending DTC 4 Pending DTC
Service $08 Service $31 ✗ 4 supported TID 4 supported TID 4 supported TID
Service $09 Service $22
Sub $F8XX 		✗ 31 supported ITID 31 supported ITID 31 supported ITID
Service $0A Service $19
Sub $55 		✗ 0 Permanent DTC 4 Permanent DTC 4 Permanent DTC
Service $19
Sub $06 		✗ ✗ ✓ ✓
Service $19
Sub $1A 		✗ ✗ ✓ ✓
Service $19
Sub $56 		✗ ✗ ✓ ✓
Transmission Service $01 Service $22
DID F401		 ✗ ✗ ✗ 22 supported PID
Service $03 Service $19
Sub $42		 ✗ ✗ ✗ 3 confirmed DTC
Service $04 Service $14 ✗ ✗ ✗ ✓
Service $07 Service $19
Sub $42		 ✗ ✗ ✗ 2 pending DTC
ABS Service $01 Service $22
DID F401		 ✗ ✗ ✗ 7 supported PID
Service $03 Service $19
Sub $42		 ✗ ✗ ✗ 2 confirmed DTC
Service $04 Service $14 ✗ ✗ ✗ ✓
Service $07 Service $19
Sub $42		 ✗ ✗ ✗ 1 pending DTC

For detail supported parameters list, please refer to SIM-OBD2-CAN User Manual

Au SAE OBD2 CAN Simulator Non-plus editions

Au OBD2 CAN Simulator non-plus editions are stand-alone devices. They can be operated independently without a PC. Full range of OBD2 CAN signals can be generated by controlling 3 push buttons.

Au SAE OBD2 CAN Simulator Plus editions

Plus Edition = non-Plus Edition + PC Remote Terminal GUI Program

Au OBD2 CAN Simulator plus editions have all the functions of non-plus edition, plus PC Remote Terminal program. Like the non-plus editions, all the plus editions can still work independently without a PC. The optional "Remote Terminal GUI" connects Au OBD2 CAN Simulator to a PC through serial communication. It displays the simulator information, alters and displays the simulator settings, and performs license upgrading for all editions. It also shows simulated OBD2 CAN signals on a computer screen for "Plus" editions and "script" editions.

Au OBD2 CAN Simulator Remote Terminal GUI for Classic OBD2 (SA J1979)
Au OBD2 CAN Simulator Remote Terminal GUI for Classic OBD2 (SAE J1979)
Au OBD2 CAN Simulator Remote Terminal GUI for Classic OBD2 (SAE J1979)
Au OBD2 CAN Simulator Remote Terminal GUI for OBDonUDS (SA J1979-2)
Au OBD2 CAN Simulator Remote Terminal GUI for OBDonUDS (SAE J1979-2)
Au OBD2 CAN Simulator Remote Terminal GUI for OBDonUDS (SAE J1979-2)

Au SAE OBD2 CAN Simulator Script editions

Script Edition = Plus Edition + Script Control capabilities

  • The Engine Basic Script edition includes all Engine Basic Plus Edition functions, plus script control capabilities
  • The Engine Premium Plus edition includes all Engine Premium PlusEdition functions, plus script control capabilities
  • The Vehicle Platinum Script Edition includes all Vehicle Platinum Plus Edition functions, plus script control capabilities
  • Script control is performed using the remote terminal GUI.
  • Script control sets six parameters to any value in the SAE-J1979 or SAE J1979-2 specification allowed range:
    • Vehicle Identification Number (VIN),
    • Engine RPM
    • Engine Run Time
    • Vehicle Speed
    • Vehicle Odometer
    • Control Module Voltage
  • Engine Run Time can be set with an initial value, then it will accumulate over time.
  • Vehicle Odometer can be set with an initial value, it will accumulate base on vehicle speed and runtime.
  • Four buttons to generate frequently used script segments.
    • KOEO (Key on Engine off profile)
    • Crank (Engine Cranking profile)
    • ACC (Vehicle Speed increasing profile)
    • DEC (Vehicle Speed decreasing profile)
  • Script control can load and run a saved script file.
  • The script can be delayed and repeated with or without white noise.
  • A script command can switch CAN bus on/off.
  • A script command can change control step value
  • One button to switch on/off Script control
  • One button to switch on/off White noise feature.
Au OBD2 CAN Simulator Script Control
Au OBD2 CAN Simulator Script Control

Detail information about Au OBD2 Simulator can be found in its user manual at: SIMOBD2CAN User Manual

Au Group Electronics OBD2 CAN Simulator product line offers a great price and value at any level starting with the Value Package edition.

All of Au OBD2 CAN Simulators, accessories, and license upgrade services are available to order directly at Au Group Electronics website.

Au SAE OBD2 CAN Simulators
Au SAE OBD2 CAN Simulator (Value Package non-plus edition)
Part#: SIMOBD2CAN-001        Price: $260.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Basic non-plus edition)
Part#: SIMOBD2CAN-002        Price: $660.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Premium non-plus edition)
Part#: SIMOBD2CAN-003        Price: $1160.00 (USD)
Au SAE OBD2 CAN Simulator (Vehicle Platinum non-plus edition)
Part#: SIMOBD2CAN-004        Price: $1760.00 (USD)
Au SAE OBD2 CAN Simulator (Value Package Plus edition)
Part#: SIMOBD2CAN-005        Price: $560.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Basic Plus edition)
Part#: SIMOBD2CAN-006        Price: $960.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Premium Plus edition)
Part#: SIMOBD2CAN-007        Price: $1460.00 (USD)
Au SAE OBD2 CAN Simulator (Vehicle Platinum Plus edition)
Part#: SIMOBD2CAN-008        Price: $2060.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Basic Script edition)
Part#: SIMOBD2CAN-009        Price: $1760.00 (USD)
Au SAE OBD2 CAN Simulator (Engine Premium Script edition)
Part#: SIMOBD2CAN-010        Price: $2260.00 (USD)
Au SAE OBD2 CAN Simulator (Vehicle Platinum Script edition)
Part#: SIMOBD2CAN-011        Price: $2860.00 (USD)
A 12-month firmware updating service and priority technical support for Au OBD2 CAN Simulator.
Part#: SVS-SIMOBD2CAN        Price: $500.00 (USD)

Note: SVS-SIMOBD2CAN can be purchased in one-year increments or purchased at any time, it is not necessary to purchase continuously.


Au OBD2 CAN Simulator can be connected to PC serial (COM) port through a RS232 serial extension cable (Part#: CBL-RS232-01), as shown in the following picture:

Connect Au OBD2 CAN simulator to PC using RS232 extension cable
Connect Au OBD2 CAN simulator to PC using RS232 extension cable

For PCs with USB port, a USB to RS232 converter cable (Part#: CBL-USB-232) can be used, as shown in the following picture:

Connect Au OBD2 CAN simulator to PC using USB to RS232 convert cable
Connect Au OBD2 CAN simulator to PC using USB to RS232 convert cable
Au SAE OBD2 CAN Simulator Accessories
OBD2 CAN cable with a power jacket, a DB9 female connector, and an OBD2 receptacle housing
Part #: CBL-OBD2-CAN-02      Price: $48.00 USD
CBL-OBD2-CAN-02 Datasheet
6-wire CAN/J1708 Cable for DB9 Male Connector
Part #: CBL-CAN-485-01      Price: $14.99 USD
USB to RS232 Converter Cable
Part #: CBL-USB-232        Price: $15.99 USD
RS232 Serial Extension Cable
RS232 Serial Extension Cable
Part #: CBL-RS232-01        Price: $8.99 USD
Wall Mount AC/DC Power Supply -Positive Center
Part #: PWR-912V-CP      Price: $14.99 USD

Value Package Edition(s), Engine Basic edition(s) and Engine Premium edition(s) can be upgraded to higher edition(s), non-Plus editions can be upgraded to Plus editions, Plus editions can be upgraded to Script editions.    

Au OBD2 CAN simulator upgrade chart
Au OBD2 CAN Simulator License Upgrade Part Number look-up Chart
Au OBD2 CAN Simulators License Upgrade
License Upgrade from Value Package Edition(s) to Engine Basic Edition(s)
Upgrade License Part #: LICOBD2C-01        Price: $400.00 (USD)
License Upgrade from Engine Basic edition(s) to Engine Premium edition(s)
Upgrade License Part #: LICOBD2C-02        Price: $500.00 (USD)
License Upgrade from Engine Premium edition(s) to Vehicle Platinum edition(s)
Upgrade License Part #: LICOBD2C-03        Price: $600.00 (USD)
License Upgrade from non-plus Edition(s) to plus edition(s)
Upgrade License Part #: LICOBD2C-04        Price: $300.00 (USD)
License Upgrade from Plus edition(s) to Script edition(s)
Upgrade License Part #: LICOBD2C-05        Price: $800.00 (USD)