![aldl to usb schematic aldl to usb schematic](https://i.postimg.cc/dVdzJN1G/Bluetooth-ALDL-Interface-R0.png)
![aldl to usb schematic aldl to usb schematic](http://aldlcable.com/graphics/obd2pinout.gif)
In addition to the converter I used a ALDL to RS232 circuit. store at supplier, LLC with ip address 50.62.160. January 2021 service manuals,eprom bins,pcb as well as service mode entry,schematics,datasheets.
#Aldl to usb schematic serial#
I found the parallax USB to serial converter and decided to use that as the heart of my cable. ODB2 to USB interface cable OBD II Free service manuals. Long story short, I am making a ALDL OBD1 cable to connect my laptop to my 92 blazer. I have connected the Tech-Edge circuit to the ALDL connector via home built cable, and the Tech-Edge circuit through a Serial to USB adapter cable made by Prolific Corp. I am posting here because of a project I have been working on. I built the circuit as shown in their schematic, and I was using EFILive V4 to try and connect to my 1989 5.7L IROC-Z. I read in a post someone had mentioned that diode D3 was incorrect. Does anyone know if the schematic from Tech Edge, using the MAX 232 is correct.