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1991 ALDL Connector Location


Ohjai

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I have looked in the manual and searched this site but can't find out where the ALDL connector is located.  I have a TECH 1 and modules coming tomorrow and would like to play with my new toy, but before I can do that, I need to plug it in, and have no idea where to find the connection point.

 

thanks

 

Jim

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On a 90 it is left of steering column under the dash, BUT, the 91 has a different ECM so maybe things moved, and it should have a cover over it that says "do not remove". 

Don't the onboard diagnostics work?

Edited by 2seater
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Thanks 2seater.  Yes the onboard diagnostics work, but I have an ABS light on , plus I like to play with test equipment.  I am a retired maritime mobile electronics service guy and like to look at meters.

 

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