I soldered wires to the D-sub connector that came with the USB to CAN interface, following the diagram in the manual that’s on the product page. For the heck of it, I decided to include the +5v and GRND wires on the connector at pins 1 and 6. But when I connected the module to USB and tried probing the +5v and GRND wires, I got -4.8v. Checked to make sure my probe wires weren’t reversed, but they’re correct. Checked to make sure I didn’t reverse the pins at the connector, but they’re correct as well. Tried probing the +5v and GRND pins directly on the box, and still got -4.8v. It looks like the diagram in the manual and the physical box have different pin layouts. The manual says pin 1 should be +5v and pin 6 should be GRND.
Does that mean the CAN low and CAN high pins are wrong in the diagram, too? Currently I have CAN low soldered to pin 2 and CAN high to pin 7