ALDL Cable VS OBD2 Cable Holden Diagnostic Tools. Now how does an OBD2 Cable differ OBD2 is the Generic name for this communication language. But in fact, theres a whole heap of OBD2 lanaguages, think of it as being able to speak English with a different accent, it sounds similar but isnt quite the same. OBD2 has a major difference in the interpreting of this data compared to ALDL, its all standardized therefore it is very simple to understand. All models and manufactures must meet the bare minimum criteria which includes looking up fault data, engine data and other diagnostic information. This means theres a whole heap of available information,software and knowledge on the web as this standardized protocol is widely used,reversed and developed around the world. Looking specifically at the commodores, the OBD2 protocols that GM uses is VPW and CAN protocols. So technically, ALDL, VPW and CAN are all different protocols, that speak different languages and all have there specific functions. OBD2 Cables main use is for looking up diagnostic trouble codes,history fault information and also viewing live engine data. The most common scantool for this job is the ELM3. It is capable of communicating over all of these OBD2 protocols, and using one of the many diagnostic softwares available allows the backyard mechanic grab diagnose any engine related problems. Aldl Software Gm ReleaseWin. ALDL Software Moates Support. About. Win. ALDL is software to datalog on GM vehicles that use the old 1. Spell Check For Microsoft Word'>Spell Check For Microsoft Word. This includes but is not limited to vehicles using a 1. ECM.   Most older TBI GM computers will speak this protocol. Download Song I Cry By Westlife. Win. ALDL does NOT speak to newer GM OBD1 vehicles that use 8. Win. ALDL is available from http winaldl. HiJackFree_screenshot.jpg' alt='Aldl Software Gm388' title='Aldl Software Gm388' />Win. ALDL was written several years ago. It will work best on Windows XP or older operating systems, if available. You may need to use a VM or Windows XP compatibility mode on newer Windows. Win. ALDL will work with both our ALDU1 and Auto. Prom. Setup. There are a few setup tasks that need to be performed. Ensure that your ALDU1 or Auto. Prom is assigned a COM port between 1 and 4. Make sure you choose a port that does not conflict with system resources. USB guideIf you are using the Auto. The frequently asked questions list serves as a central clearinghouse of information that the mailing list has gathered about the Impala. The FAQ is an active thing. Ok this one is simple though sorry the news isnt great. Most importantly, THE NUMBERS STAMPED ON GM PARTS ARE NOT PART NUMBERS. They are CASTING numbers and as. News and Information 2017 GM SupportWe now offer support for 2017 GM vehicles. The OBD240 definition file has been updated to support the 2017 full size trucks and. Aldl Software Gmt' title='Aldl Software Gmt' />Prom, ensure that it is set to pass through NOTAuto. Download Driver 82579Lm Gigabit Network Connection. Prom mode. see Auto. Prom troubleshooting guideOn most 1. Auto. Prom or ALDU1. Set the COM port selection in Win. ALDL to match what it set up to on the USB driver under the control panel. Set the baud rate to 4. Win. ALDL program. Select the ECM type in Win. ALDL which matches your ECM. Aldl Software Gm 300' title='Aldl Software Gm 300' />Aldl Software GmuWhat is needed to monitor my engine There are 3 things needed to access the diagnostic data stream from a GM based On Board Diagnostic 1 OBD1 system on your 1982. Make sure the ALDU1 is connected to the laptop prior to starting the software. Turn your key off, connect the ALDU1 to the car, and start the software. Turn the car on, it should connect.