This cable is intended to be used with cars and trucks using gm ecm/pcm's originally equipped with 12 pin aldl connectors in the 1982 to 1995 era. It will then successfully work with obd-i software like award-winning toad and your car. I do 160-baud and working properly.įree rs-232 terminal mode on your system. Devises will have, so i currently don't run 100% properly.
Take your pick, but i'd reserve the older one in case you need to troubleshoot and just go with the newest auto-install.
20 you can now play aldldroid for pc on a desktop/laptop running windows xp, windows 7, windows 8, windows 8.1, windows 10 and macos/os x. 20 we are going to be modifying the driver to suit what we are doing. Choose the popular programs in the connect the newest auto-install. You can work by itself, 1320 electronics is an available! Go to the 'port settings' tab and press the ' ' button.Īldldroid is located port number if you install the driver. The ALDL interface circuit components soldered to board: Here is a picture the resistors, transistors, diode and DB9 connector: This circuit consisted of two transistors one connecting the "ALDL data" to "RS232 Receive", the other connects the "RS232 Send" to "ALDL Ground". Since the first circuit performance wasn't great and the whole thing was messy, instead of refining the first circuit i thought i should try a new design. This circuit worked, but for some reason the response was slow, i couldn't make it work with a Usb-to-Serial converter, and on some PCs you can't take power from Pin4 so you have to connect it to 12v external power source (the resistor stays). The simplest ALDL interface circuit i could find consisted of one transistor and two 10k resistors it simply connected the data pin on the ALDL plug to the RxD(Receive Data) port on the RS232 on the PC through the transistor. Īldl has a port for sending data and the RS232 on PC has a receive data pin (RxD) so the easiest way is to connect them directly but since each system uses a different voltage we should put a transistor between them. I've always wanted to connect my laptop to my GMC van OBD1 based ECU, a little research on the internet lead me to a simple circuit that could make that happen.
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