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Thread: 89 Daytona not charging

  1. #1
    Mitsu booster
    Join Date
    Apr 2016

    89 Daytona not charging

    I replaced the alternator , I have battery voltage at the main terminal , key on voltage at the field , fuse links seem good (and iirc , wouldn't have field voltage if this was the problem anyway?) also no codes . 89 shelby z , can anyone point me in the direction of troubleshooting wiring and smec , please ?

  2. #2
    Hybrid booster
    Join Date
    Sep 2011

    Re: 89 Daytona not charging

    Have you tried full fielding the alternator momentarily to see what voltage is at the battery?
    Check the wiring for the regulator from the computer to the alternator.

    If you have very high battery voltage after full fielding, the voltage regulator inside the SMEC is to blame. At that point you would have to convert to an external regulator, or repair/ replace the power module.

  3. #3
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
    Join Date
    Dec 2005
    Tuscola, IL

    Re: 89 Daytona not charging

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