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Old 09-14-2022, 08:29 PM   #25
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: Help interpreting ALDL data

Quote:
Originally Posted by Second Series View Post
I was looking for a connector for the ALDL. I did find the female connector as is in the truck. I contacted the vendor and they sent a technical request to the manufacturer as to what the male counterpart is. I’m still waiting for a reply. I only used 2 wires to the ALDL and a third wire for 12v, but a connector would be nice.
The handheld Bosch 1300 diag tool uses adapter pigtails with standard density Female DB15 connector to 12 terminal GM ALDL, EEC-IV, SCI, and both Toyota proprietary diag connectors.
You may not get all 12 terminals passed through in the Bosch 1300 tool cable. I'd ask.
https://www.ebay.com/itm/225053949859

I have an old Autel code reader for diag on pre OBD II vehicles. That tool has a male GM ALDL plug to some kind of D-Sub connector.

Another option is using cabling in your complete Tech2 setup if you have one.
The complete Tech2 kit has a 12 terminal Male Metripak 280 ALDL plug to female round 19 terminal connector that plugs into the Tech2 VCS cable.
The Tech2 VCS cable has a high density female 26 terminal D-Sub connector to male round 19 terminal plug.
I have a complete Tech2 and I buzzed out the ALDL adapter with my meter. All 12 terminals are connected to terminals in the round female connector.
You'll need a male HD 26 terminal D-Sub connector to mate with the VCS D-Sub.

I've seen one overmolded ALDL plug with an un-terminated cable advertised. I haven't ordered from them. Someone is making them or was.
http://obd1.com/products/daewoo.asp
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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