Every mechanic wants to freely download car diagnostic software from the Web. Last night, a new mechanic friend of mine called and said his BMW Scanner V1.4.0 CD was damaged and the software therefore could not work.

There are basically 3 things you need to record diagnostic data from a GM based On Board Diagnostic 1 ( OBD1 ) system on your 1982 - 1995 era car. Toyota techstream v8.10.021 download. 1 - A PC computer, preferably a laptop, to collect, log, and analyze the OBD data. 2 - An ALDL cable to interface your PC computer to the ALDL OBDI diagnostic port on your car. OBDMATE OM580 OBDII EOBD Code Read Scanner software, free download Time:(2014-07-11) Software Size: unknown Related Download Files om580-video.zip (8,517.0K) OBDMATE OM580 OBDII EOBD Code Read Scanner software, free download OBDMATE OM580 OBDII EOBD Code Read Scanner software, free download.

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He was wondering if there was a place to download the software for free. Well, I do know a website that provides free BMW Scanner V1.4.0 software. It is an OBDII seller named EOBDTOOL , which I have worked with for more than a year.

You can download BMW Scanner V1.4.0 software. Click Technical Support then you will find Free Download as shown below.

Click BMW Scanner 1.4.0 software and you will go to the download page.

The website also provides many other free car obd2 diagnostic softwares and drivers. You can explore it and find what you need.

GM OBD1 Cables

Low Cost ALDL OBD1 Cables - $59.95

12-Pin Version

16-Pin Version

3 Things Needed
There are basically 3 things you need to record diagnostic data from a GM based On Board Diagnostic 1 ( OBD1 ) system on your 1982 - 1995 era car.
1 - A PC computer, preferably a laptop, to collect, log, and analyze the OBD data.
2 - An ALDL cable to interface your PC computer to the ALDL OBDI diagnostic port on your car.
3 - A software program running on your PC to capture the OBD data.

Why This Setup?
What is the reason for having the above setup for yourself? Mainly, you now have a powerful tool to analyze your cars OBD data yourself, better even than the specialized scanning tools only dealerships and big shops had in the distant past. With your own setup, if your Service Engine Soon ( SES ) light comes on you can look at detailed OBD data for yourself to see what trouble codes have been set and the conditions they were set under, possibly saving you money in repair costs by knowing what is or isn't wrong with your car. For many, it is quite interesting to be able to see your car's sensor systems working in real time, and even having the potential to upgrade performance through PROM reprogramming of your cars ECM/PCM (not for the beginner).

The ALDL Cable
Let's look at the ALDL (Assembly Line Diagnostic Link) OBD1 interface cable first, since we sell low cost ALDL OBD1 interface cables. It may possibly be the only thing you will need to buy to do your own diagnostics. You can make your own cable, but it is much quicker and less headache to buy one already assembled and tested.

Under your cars dash you will most likely see this style connector:

There are other styles of connectors, but the 12 pin OBD1 connector shown above is the most common. Some 1994-95 cars have the 16 pin OBD2 connector (shown below), Corvette's, Camaro's, and LT1 cars among them, as well as newer Australian Holden and Commodore. Even though it is an OBD2 connector, it has an OBD1 system behind it on these 94-95 cars. If you have a 94 or 95 car with the 16 pin connector, we sell 16 pin USB ALDL connector cables for it here.
You can also program the instrument cluster on the 2004, 2005 and 2006 Pontiac GTO with our 16 pin USB ALDL cable as shown with the instrument cluster programming software here. Other newer cars and trucks may work the same.

Make sure you buy the correct ALDL cable setup for your car or cars. You can buy an ALDL Cable with an OBD1 12 pin connector shell, or OBD2 style 16 pin connector shell, or a cable with just a bare male pin, to plug into your cars female connector serial data pin location (pin M or E or 9 on the diagrams above). The ALDL cable with the male OBD1 connector shell will allow you to just feel under the dash and plug the cable in. The cable with just the bare pin requires you to look under the dash and plug into the correct pin on the car side of the connector. If you have both 12 pin and 16 pin cars to diagnose and data log, you can buy just the bare pin USB cable, but is less convenient to use.

The Quick Paper Clip Test
Since we are looking at the connector pins, it should be mentioned here that a quick method to see which trouble code or codes are being set in your cars ECM is to jumper the A and B pins of the 12 pin ALDL OBD1 connector with a paper clip. While the car is off, sitting still, turn the ignition key forward while this jumper is in place. Do not start the car. The Service Engine Soon ( SES ) light will flash in a repeating sequence, telling which trouble codes have been set in the ECM. A service manual for your year car will have a chart outlining what each trouble code stands for, or this Trouble Code website can be of help. This paper clip method will tell you the trouble code or codes set in your ECM, but it will not tell you what conditions the trouble code is being set under, or let you clear the trouble codes on the fly, as the ALDL cable and PC setup will.

What PC's Work
You will need a PC to run your scanning or diagnostic software, preferably a laptop PC. The hardware requirements for the PC are largely dictated by what scanning or diagnostic software you plan on running. Some of the scanning programs are very simple DOS based programs, others are more graphically intensive. Look at the software links we have posted and read the hardware requirements for the program you are thinking of using. For the most part, the simple DOS programs can be run on very old, 486 based laptops with very little memory ( <16MB ). The more advanced graphical scanning programs, such as TTS Datamaster and EFILive, still have very modest hardware requirements, requiring Windows 95 or newer, a 90Mhz or greater pentium CPU, and 32MB of RAM or greater. If you do not already have a laptop, these are approximately 1996 era laptops and can be had for very little money off of EBay, many times for less than $50.

Whatever PC you end up using, it must be equipped with a USB interface or a serial (RS-232) interface. All newer laptop computers only have a USB interface, as seen here:

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Almost all older laptops and PC's come with the serial interface built into the computer itself. It will be a 9 pin male connector that looks like the connector on left. The connector on the right is a 15-pin video connector, not a serial port.

If you have an ancient laptop that does not have a USB interface, buy our Serial ALDL Cable.

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The Diagnostic Software
The last item needed is the diagnostic software that will run on your laptop to collect and record the data from your OBD1 system. There are a number of excellent software packages available, with some of them being free and others giving you a trial period of fully functional use. Screen shots and links to each website are provided below for each of the software packages I have found and loaded up for myself. I'm not endorsing one scanning package over another, as they all have their place

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Low Cost ALDL OBD1 Cables - $59.95

Obd1 Code Reader software, free download Windows 7

Obd1 Code Reader Software Free Download