Drew Technologies CarDAQ-M J2534-1&2 Module, Quick Start Manual

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Connectors and Status Indicators 

PC Connection Panel 

Ports and their functions: 

Expansion A and B: Future PC connection options. 

USB: For a direct to PC USB connection. 

AUX: External programming voltage supply. For use on some vehicles that 

have special programming needs. 

PWR: External power option which maybe needed for future expansion 

modules. 

Expansion Panel 

This side of CarDAQ-M allows future modules to be connected for more 

capability. An expansion module is connected to the CarDAQ-M with 

both the Vehicle and Expansion C ports, then secured by with metal tabs 

and screws between the modules.  

Vehicle: OBDII cable is connected here. 

Expansion C: Connection for future expansion modules. 

6. Troubleshooting and Support 

Some questions and answers to common questions with the CarDAQ-M: 

Q: I have connected my CarDAQ-M to my computer with the USB 

cable, but nothing happens. 

A: Make sure the drivers are installed on your computer using Install 

Check in the J2534 Toolbox. If you have not run the driver installer from 

the CarDAQ-M CD, disconnect the CarDAQ-M from the computer and 

install the drivers.