Edmunds Answers



  • MrShift@Edmunds 02/05/09 12:45 pm PST

    Well you have the older OBD-1 system and doing various self-tests without use of a scan tool is fairly extensive and really requires you getting ahold of a workshop manual and doing the step by step procedures with the ignition key and a voltmeter. It's pages and pages of diagnostics and it's too much to post here, sorry.

    I'd say in your case run it into a competent transmission shop that is all set up and pay them for the diagnostic time and then you'll at least know what's what. OBD-1 is a lot harder to use as a diagnostic tool than the OBD-II that came out a year later on your car.

    Probably your problem is something related to this comment in the database:

    "NOTE: When the overdrive indicator flashes on and off, a concern has been detected in certain transmission related sensors or solenoids"


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