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  • Teensy 4.0 OBDII CAN-Bus ECU Simulator includes Teensy 4.0
  • Teensy 4.0 OBDII CAN-Bus ECU Simulator includes Teensy 4.0

Teensy 4.0 OBDII CAN-Bus ECU Simulator Includes Teensy 4.0

$175.95
SKU:
TEENSY40-OBDII-SIM
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This is a CAN-Bus OBDII ECU simulator using the Teensy 4.0 module (included). Useful for testing OBDII interface and writing diagnostic software. ECU PIDs parameters are adjustable via potentiometers.

This board requires a 12 VDC power supply. A 12 VDC adapter is included.

Hardware Features

  • Teensy 4.0 module (installed)
  • Teensy pre-programmed with OBDII ECU simulator firmware
  • Supports ISO 15765 (CAN Bus)
  • 500kb/s CAN speed
  • Open-source firmware
  • Female OBDII socket with 12v supply to interface
  • 6 potentiometers for PID adjustment 
  • 12 VDC supply. External 12 VDC PSU included.
  • Firmware Features :
    • SAE standard J1979. PIDs partially implemented. Mode 01, 02, 03
    • Adjustable PID parameters via potentiometers
    • Engine RPM
    • Throttle position
    • Vehicle speed
    • Coolant temperature
    • MAF airflow sensor
    • O2 sensor voltages
    • Setting and clearing Diagnostic Trouble Codes (DTC) 
  • Open-source firmware, other PIDs can be added

Download the PDF: Teensy Software Installation & Downloading Programs (Sketches)...


Documents

More Resources


The Five OBD-II Protocols

The CAN Bus today serves as the basis for OBD2 communication in the vast majority of cars through ISO 15765.

Note: The Teensy 4.0 OBDII CAN-Bus ECU Simulator supports only ISO 15765 (CAN Bus).

However, older cars (pre-2008) may use one the other four protocols that have been used as basis for OBD2. 

Five OBD2 Protocols

  • ISO 15765 (CAN bus): Mandatory in US cars since 2008 and is today used in the vast majority of cars
  • ISO14230-4 (KWP2000): The Keyword Protocol 2000 was a common protocol for 2003+ cars in e.g. Asia
  • ISO9141-2: Used in EU, Chrysler & Asian cars in 2000-04
  • SAE J1850 (VPW): Used mostly in older GM cars
  • SAE J1850 (PWM): Used mostly in older Ford cars

Obd-I & Obd-II: A Complete Guide to Diagnosis, Repair, & Emissions ComplianceOBD-I & OBD-II: A Complete Guide to Diagnosis, Repair, & Emissions Compliance

Onboard diagnostics (OBD) systems have been an integral part of vehicle design for decades, as OBD-II became mandatory in 1996 for all cars manufactured in the United States. Almost every aspect of the diagnostics system evolved from emissions requirements in the automotive industry. Manufacturers reacted with growing complexity in the electronic controls and reporting of errors. Fortunately, some commoditization followed in the industry, which made the job of a repair technician or do-it-yourself enthusiast slightly easier when working on these demanding systems.

Passing emissions testing has become critically important to high-performance parts and installation shop manufacturers. The US Environmental Protection Agency (EPA) and California Air Resources Board (CARB) have assessed enormous fines for violations of the Clean Air Act based on information available from the vehicle's OBD system. Many states now require vehicles to pass an OBD check to renew the registration, making proper operation even more important to consumers. OBD-I & OBD-II: A Complete Guide to Diagnosis, Repair, & Emissions Compliance is an insider's guide to modern original equipment manufacturer (OEM) diagnostics systems. More Information...

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