dpdu-passthru

D-PDU API driver for J2534 compatible devices. Currently supports only GM Tech2Win software.

Currently working

• Any J2534 compatible interface with K-Line support (pin 7)
• Tested with:
  • XHorse Mini-VCI J2534
  • Mongoose Pro JLR
• Tech2Win
  • Saab 9-5 with K-Line diagnostics (pre-2006 year models). The pins 7 and 8 of the DLC need to be shorted in order to access all diagnostic units in the car. Tested with MY2000.
  • Possibly other Saab models which have only K-Line diagnostics

Todo

• Test more with real cars
• Find out why Saab 9-5 post-2006 fails communication with DICE through the K-Line
• ISO15765 / CAN support

Instructions

Prerequisities

• Install latest Microsoft Visual C++ Redistributable (x86): https://aka.ms/vs/17/release/vc_redist.x86.exe

Install

1. Dowload latest release: https://github.com/JohnJocke/dpdu-passthru/releases
2. Unzip package and run install.bat as administrator

Build

1. Build the project with Visual Studio 2022, using the Release x86 build configuration
2. Install the driver by running the .bat installer as administrator: https://github.com/JohnJocke/dpdu-passthru/blob/master/installer/install_dev.bat

Configuration

• Settings file can be found from C:\Users\Public\dpdu_settings.ini
• Settings:
  • DisableTesterpresent: Set to 1 to disable sending testerpresent messages to the ECU
  • FixTesterpresentDestination: Set to 1 if D-PDU host sends testerpresent messages to wrong destination
  • AutoRestartComm: Set to 1 to automatically restart communication to correct destination