This circuit consisted of two transistors one connecting the "ALDL data" to "RS232 Receive", the other connects the "RS232 Send" to "ALDL Ground". The ALDL Cable Lets look at the ALDL (Assembly Line Diagnostic Link) OBD1 interface cable Some of the scanning programs are very simple DOS based programs, others are more graphically intensive. The USB cable plugs into the connector port from the ECM. Moates has a 'ALDL Echo Test Program,' which tests your ALDL cable when it is not hooked into vehicle you will have to power up the cable with 12Volts when doing this test. NOTE: WinALDL will run on computers with Windows 7 or older as the operating system and it.
Winaldl cable software#
item 6 GM OBD1 Scanner Cable & Software - USB to 12 pin ALDL direct.
Winaldl cable serial#
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. If anyone buys one of those ALDL Cables with a serial interface, this information may be of interest, if stuff happens. item 5 GM 12 Pin OBD1 to 16 Pin OBD2 Convertor Adapter Cable For Diagnostic Scanner 5 -GM 12 Pin OBD1 to 16 Pin OBD2 Convertor Adapter Cable For Diagnostic Scanner. For the 160 baud cars, WinALDL seems to be the most widely used package and.
Winaldl cable Pc#
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). 2 - An ALDL cable to interface your PC computer to the ALDL OBDI diagnostic. 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. This cable is intended to be used with cars and trucks using GM ECM/PCMs originally equipped with 12 pin ALDL connectors in the 1982 to 1995 era. Plug your laptop into the ALDL port of your 82 to 95 GM car or truck and see what is happening under the hood. ALDL OBD1 Cable Instructions This package includes an ALDL Cable w/ OBD1 12 pin connector. USB to ALDL CABLE Now works with ANDROID.
GM OBD1 SCANNER Cable & Software Scanner - USB to 12 pin ALDL direct - 55.00. 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. For the puprle trace, the first bits are 0s, and the last bits are 1s.