part #:3100f - CanOBD2® Diagnostic Tool™

Please select a question from the choices below. You may also click on the buttons on the left to download the manual for this tool, download the most current version of software or shop for accessories.

    Commonly Asked Questions

  • How can I update the Code Reader firmware?
  • What is Freeze Frame data?
  • With what model years is the Code Reader compatible?
  • I lost my Owner’s Manual, and software CD, where can I get another one? 

    You can download a copy of the Owner’s Manual  in Adobe PDF format and download the software from Innova website ( Click on the "Support" Tab, and choose "Manuals and Software". 

  • Can I retrieve manufacturer-specific Diagnostics Trouble Codes (DTCs) with this Code Reader?

    Yes. The 3020b Code Reader is capable of retrieving manufacturer specific codes. The tool will retrieve both Generic (P0, P2, P3, and U0) and Manufacturer Specific (P1, P3, and U1) OBD-II DTCs.

  • Are there adapters available to allow this Code Reader to access OBD1 systems?
  • Will this Code Reader display a vehicle’s VIN?
  • Will the Code Reader damage my vehicle’s electronic systems?
  • What extra features does the software offer?

    The Pc link software will allow you to connect the Code Reader to a PC and transfer the information retrieved from your vehicle’s computer. It will allow you to create a basic report that provides you with the code, code definitions, freeze frame data and if available possible causes for the DTC's.  You can also purchase a premium membership, this will give you access to Verified Fixes for codes, Predicted Vehicle Repairs based on the current mileage, and access to our full library of do it yourself videos. 

  • What is the purpose of the EMISSION STATUS LEDs?
  • Does this Code Reader support Extended CAN?
  • Will this Code Reader read codes from my vehicles ABS computer?
  • Can I use the Code Reader with the engine running?

    We always recommend connecting the Code Reader to your vehicle first, before turning on the ignition or starting the vehicle. So long as this procedure is followed, you can use the Code Reader on the vehicle while it is running.
    IMPORTANT: If it is necessary to drive the vehicle while observing the Code Reader's display (such as when performing a Drive Cycle), ALWAYS have a second person help you. One person should drive while the second person observes the Code Reader's display.

  • Is this Code Reader “ready to use” out of the package, or does it need to be updated first?
  • Will this Code Reader work on “full size" trucks or motor homes?
  • Why doesn’t the Owner’s Manual provide definitions for all of the available codes?
  • I lost my Owner’s Manual, where can I get another one?

    You can download a copy of the Owner’s Manual  in Adobe PDF format and download the software from Innova website ( Click on the "Support" Tab, and choose "Manuals and Software". 

  • Does this Code Reader display Freeze Frame data?
  • Will this Code Reader erase codes and turn the Malfunction Indicator Lamp (MIL) off?
  • Do I need adapters for different vehicles?
  • Where can I get code definitions for the codes I retrieved if definitions are not available through the Code Reader?

    Definitions for all available DTCs (both Generic and Manufacturer-specific) can be accessed through the Innova website ( Go to the "Support" tab, choose DTC Library, and follow the on-screen instructions. Please enter P0 (zero), not Po when entering the codes. 

  • Can I retrieve Body, Traction Control or Air Bag codes using this Code Reader?
  • Why does the “Unable to establish link” message display?
  • Will this code reader display live data and do bi-directional functions?

    No. it won't  stream Live Data and it doesn’t have bi-directional functions. Please refer to Innova’s Scan Tools for Live Data capabilities. 

  • Will this Code Reader work on diesel vehicles?
  • Will this Code Reader erase codes and turn the ABS warning light off?
  • Why does my cable have 14 pins instead of 16 pins?