works on cars that have the serial data pin on pin M or pin E of the GM 12 pin OBD1 ALDL connector. This cable is the most convenient to use if your car is equipped with the 12 pin connector style, as. With the 16-pin cable (1995) the black wire from the USB cable goes to pins 4 and 5 of the 16-pin connector while the green and white wires from the USB cable are connected together to pin 9 on the 16-pin connector.īus 002 Device 005: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC (Red Devil River Adapter)īus 002 Device 006: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapterīus 002 Device 007: ID 067b:2303 Prolific Technology, Inc. ALDL (GM OBD1) Cable with 12 pin Connector, USB. ALDL (GM OBD1) Cable with 12 pin Connector, USB: aldlobd1u: 0.37 lbs: 59.95 ea : 4GB Thumb Drive Instead of CD: thumb: 0.1 lbs: 10 ea : This cable has a 12 pin OBD1 connector shell to plug in under your cars dash to interface to your cars ECM. With the 12-pin cable the black wire from the USB cable goes to pin A while the green and white wires from the USB cable are connected together to pin M on the 12-pin connector. The cable may be ordered with the 12 pin connector shown here, the 94. The most common scantool for this job is the elm327 cable as pictured to the right. Our 12 pin aldl obd1 usb interface cable allows for the monitoring and recording of gm vehicle performance data to the users pc. Their interface has com status lights and easy configuration dipswitches. Compatible with GM OBDI data streams that use the 8192 Baud, Pin M protocol AND 160 Baud Pin E protocol. Usb to the cars and aldl software for hum. Q - Can I get a version of the 16 pin cable with the switchable 10K O resistor?Ī - No, GM never required the 10K ohm resistor on the 16 Pin OBD1 vehicles and thus my 16 Pin cable has none.Note: The colors of the wires often change on the cheap adapters, please make sure that you are connecting to the proper pin. USB to ALDL CABLE Plug your laptop into the ALDL port of your 82 to 95 GM computer controlled car or truck and see what is happening under the hood. :chevy: K1500 '97 6.5 4x4 Z71 (Daily Driver) Inner fender FSD HeatSync - 305/60-16 - 3.73 - ClearDiamond light kit - Remote contr engine heater - Lund LunarVisor - 4' SS exhaust (3' DP + 5' tip) - SSD 80hp chip - SSD.
#ALDL USB DRIVERS#
If you have questions on the 10K ohm resistor contact me. Manually update drivers for the USB ALDL/OBD1 Interface, that show in the DeviceManager of Windows, on you should be good to go.
On MOST ECMs the 10K ohm resistor either does not affect the ECM operation, OR the 10K ohm resistor is needed for data flow. Q - Why would I want to disable the resistor?Ī - On a few select ECMs the 10K O resistor is not needed for the data flow but does alter the idle speed and timing.
Note: Be sure the PC/Laptop has a DB9/DB25 RS232 Serial port on COM1-COM4 with a standard Rockwell compliant buffered UART using standard base addresses and standard IRQ channels. CK5 forum RS232 to ALDL DIY Howto DIY RS232 to ALDL. Q - Can I disable the 10K ohm A-B resistor?Ī - Yes the 10K resistor can be switched off on the 12 Pin version. Red Devil River USB or Bluetooth to ALDL 12 & 16 terminal moulded plugs. Q - Does this cable include the 10K ohm A-B resistor needed on many 12 Pin 160 Baud ECMs?
Q.- Will this work with my 94-95 6.5 Turbo-Diesel?Ī - Yes it will however you will have to download and use GMTD Scan Basic (free) or GMTD Scan Tech ($) from the most expensive parts in the whole operation are the male OBD1 connector(currently 15 + ship from ) and the enclosure for the serial-USB. Make sure you order the cable that fits your cars connector.
#ALDL USB MANUAL#
You can read the owners manual or contact the manufacturer to find out. If you have a usb to aldl cable already, it is most likely FTDI. The cables sold on sites such as, among others, will suffice. GM used 12 pin OBD1 type and 16 pin OBD2 type connectors on 94 & 95 vehicles. The aldl-io software requires an FTDI chipset USB->ALDL interface. Q - Will this cable work with my 94/95 3800 OBD1.5?Ī - Yes it will.
#ALDL USB HOW TO#
Otherwise go here for guide on how to properly install your ALDL cable to Windows.
#ALDL USB DRIVER#
There are 3 things needed to access the diagnostic data stream from a GM based On Board Diagnostic 1 ( OBD1 ) system on your 1982 - 1995 car or truck.ġ - A laptop PC with an available USB portģ - A software program running with the correct stream definition for your car or truck ALDL USB Driver Pack for Windows Posted by - NA - on 29 January 2013 11:17 PM Once you install these drivers OBD software should successfully detect your ALDL cable, and hence connect to your car also.
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