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Tech2 scanner

I don't think Tech2 (OBD-2) tool is compatible with tech 1 (OBD-1) setup, iirc totally different comupters in PCM chip vs. flashed, also "pin out" of OBD1 plug is different from OBD-2.

For vehicle grounds there should be a post I wrote years ago showing all the vehicle grounds, one of the critical ones is the one on pass side rear intake manifold stud, that is the gnd for the PCM at least in OBD-2 trucks, I would have to confirm in same location for OBD-1 but I believe it is same location.
 
Goose57 said:
Hi all, I’m trying to use my scanner to diagnose an engine cutting out after start up. Just a fast little hiccup . I want to see what’s the IP is doing when it happens right after startup. After inputting truck data and starting it up, the scanner disconnects and I have to re-enter data again and the event all ready happened. Is there away around this? Is this normal for the Tech2 to disconnect on start up? Anybody have this experience? Thanks Gus.
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Thanks for information!
 
Goose57 said:
Hi all, I’m trying to use my scanner to diagnose an engine cutting out after start up. Just a fast little hiccup . I want to see what’s the IP is doing when it happens right after startup. After inputting truck data and starting it up, the scanner disconnects and I have to re-enter data again and the event all ready happened. Is there away around this? Is this normal for the Tech2 to disconnect on start up? Anybody have this experience? Thanks Gus.







The Tech2 scanner is a great diagnostic tool, especially for GM vehicles. It provides detailed codes and can help with in-depth troubleshooting. If you're working on a vehicle or diagnosing issues, staying organized is key. I use https://wellness-app.com/ fasting tracker to help manage my time and tasks, making sure I’m not missing anything while working through the process. With tools like the Tech2 and some good time management, troubleshooting becomes a lot more efficient and less stressful.
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The Tech2 scanner is a great diagnostic tool, especially for GM vehicles. It provides detailed codes and can help with in-depth troubleshooting. If you're working on a vehicle or diagnosing issues, staying organized is key
 
Turbine Doc said:
I don't think Tech2 (OBD-2) tool is compatible with tech 1 (OBD-1) setup, iirc totally different comupters in PCM chip vs. flashed, also "pin out" of OBD1 plug is different from OBD-2.

For vehicle grounds there should be a post I wrote years ago showing all the vehicle grounds, one of the critical ones is the one on pass side rear intake manifold stud, that is the gnd for the PCM at least in OBD-2 trucks, I would have to confirm in same location for OBD-1 but I believe it is same location.
Click to expand...
Tech2 (OBD-2) isn’t compatible with Tech 1 (OBD-1). They use different PCMs, different communication methods, and the OBD-1 pinout is not the same as OBD-2. Also, don’t overlook vehicle grounds—especially the passenger-side rear intake manifold stud, which is a critical PCM ground and likely the same on OBD-1 setups.
 
Olavrandap said:
Tech2 (OBD-2) isn’t compatible with Tech 1 (OBD-1). They use different PCMs, different communication methods, and the OBD-1 pinout is not the same as OBD-2. Also, don’t overlook vehicle grounds—especially the passenger-side rear intake manifold stud, which is a critical PCM ground and likely the same on OBD-1 setups.
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Welcome to the truckstop.
 
Paveltolz said:
Tech 2 scanners, when bought as a kit, come with the adaptors that allow for connection to either OBD 1 or OBD 2. There are a lot of connectors, adaptors and such as CAN etc. that come with the kits.
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I went to that website, it listed the scanner kits as out of stock.
Seems there is a truck load of them in fleabay.
 
Flea Bay's where I got my Kit, CKO to be fair but, it works well. There's a few claiming to be originals too.
FWIW, Had to get a replacement part and was able to go to the Vetronix/Bosch site to source it. Did the same to get a friend an OBD II adapter after they'd misplaced theirs. Now he has two...
Part #3000099, OBD 1 Adapter for Tech2. No longer listed on the Vetronix site but other vendors did have them. Around $100-120. Other's have adapters that plug into the ODB2 connector for less.
Flea Bay listed Vetronix OBD I connectors run as low as $20 or so.
 
On TheTruckStop.us thread about the Tech2 scanner, truck owners are discussing diagnostics tools, OBD‑II interfaces, and how to troubleshoot engine codes on older GM vehicles. Members compare handheld scanners, data‑stream capabilities, and which models work best for both commercial and personal rigs. While the focus is on automotive tech, many posters also talk about how useful mobile tools can be when handling paperwork related to fleet maintenance or DOT inspections. For drivers who need to send service records or compliance forms while out on the road, an iphone fax app like the one found here (https://apps.apple.com/us/app/fax-from-iphone-send-doc-app/id978931264) lets you quickly transmit documents without searching for a physical machine. That convenience makes it easier to keep maintenance logs and regulatory paperwork up to date between long hauls.
 
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