For OBD-I I have been using an Actron Scantool with the Chrysler 1989 to 1995 cartridge. There are Ford GM and Generic OBD-II cartridges and model specific cables for it that i do not have.

https://www.ebay.com/sch/i.html?_odkw=ac...10&_sacat=0


Major limitation is only five lines of sensor readout on the small screen. Will test most OBD-I Chrysler actuators. I wish this Chrysler cartridge had the percent cylinder power balance test routine like the Ford cartridge has.