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Coil Resistance Test

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect and isolate the negative battery cable.
  2. Disconnect the wire harness connector from the A/C clutch field coil connector.
  3. Use an ohmmeter and measure the resistance of the clutch field coil at the field coil connector terminals.
  4. Refer to A/C CLUTCH FIELD COIL SPECIFICATIONS  for the acceptable A/C clutch field coil resistance. Specifications apply for a work area temperature of 21° C (70° F).
    • If the A/C clutch field coil reading is below specifications, the coil is shorted and must be replaced.
    • If the A/C clutch field coil reading is above specifications, the coil is open and must be replaced.
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