AFIT Software Update V16 Adds 2023 Models

The latest software update (CH-47976-SWV16) for the CH-47976 Active Fuel Injection Tester (AFIT) has recently been released.

The software update includes:

  • 2023 model year database V19.00 updates for all vehicle applications deploying through July 25, 2022
  • PC Application Software V4.0
  • MCU Firmware V3.45
  • DMU Firmware V1.31 (optimizes support for Fuel Pressure Regulator Pulse Width Modulation Control)


TIP: The GMDE-approved Bosch USB to Serial Cable CH-47976-3A is required and fully compatible.


Software Download

The CH-47976-SWV16 software update is available through the GM GlobalConnect app (U.S. only) Special Tools and Software Updates. From the software downloads page, select the link for AFIT (Active Fuel Injection Tester) Software Update – V16.00 January 2022 and follow the instructions. (Fig. 15)

In Canada, the software is available for download through the Service Application selection of GM Special Tools & Equipment – Software Updates in GM GlobalConnect.


Fig. 15


AFIT Update Instructions are available on the GM Tools and Equipment website under the Support Documents link for the software download.

For questions regarding the software release, contact Bosch Automotive Service Solutions Technical Support at 1-800-GM-TOOLS (1-800-468-6657).


– Thanks to John Staman

Envision Ambient Instrument Panel Lighting
Cold Weather Driving and Tire Pressure Monitor System Diagnostic Tips

Leave a Reply

Your email address will not be published.