A/C Clutch Coil Resistance

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Electrical Technical Information Discussion, A/C Clutch Coil Resistance in Item Specific Cadillac Discussion; For 1993 Sedan Deville 4.9L: Does anyone know the nominal spec for the A/C clutch coil resistance? I'm reading 1.2 ...
  1. #1
    pderk is offline Cadillac Owners Member
    Join Date
    Jun 2004

    A/C Clutch Coil Resistance

    For 1993 Sedan Deville 4.9L:

    Does anyone know the nominal spec for the A/C clutch coil resistance?

    I'm reading 1.2 ohm which seems rather low.

    Any info is greatly appreciated.


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  3. #2
    JimD is offline Cadillac Owners Connoisseur
    Automobile(s): '98 STS (RIP @ 206,xxx miles)
    Join Date
    Sep 2003
    Metro ATL

    Re: A/C Clutch Coil Resistance

    Don't have your specific clutch coil here but the one's I have measured from "modern" vehicles have been in the 1 to 2 ohm range. A strong magnetic field is required to "pull-in" and grab that drive pulley.

    Once the clutch is engaged, the resistance is increased to produce a "hold-in" level of magnetic field strength.

    Sounds like your's is in the normal range to me.

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