Blade Posted November 19, 2021 Share Posted November 19, 2021 Vacant plug located between left front fender and air intake box. Any one know what it's for? 1991/4.0/automatic/4X4/factory AC delete. Link to comment Share on other sites More sharing options...
jdog Posted November 19, 2021 Share Posted November 19, 2021 Looks like the Chrysler diagnostic connector Link to comment Share on other sites More sharing options...
Minuit Posted November 20, 2021 Share Posted November 20, 2021 Yep, diagnostic plug. If you have a compatible scanner, you can look at live data, trouble codes, and do some basic bi-directional tests. Link to comment Share on other sites More sharing options...
Blade Posted November 20, 2021 Author Share Posted November 20, 2021 Ok thank you for the information. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted November 20, 2021 Share Posted November 20, 2021 Chrysler SCI port. As mentioned above, it’s a diagnostic port. There are a few scanners that can read it in addition to the DRB tool from Chrysler. Link to comment Share on other sites More sharing options...
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