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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 348 (Heating & Air Conditioning (Service Information) - 2500 Hd & 3500 Hd) >> Plumbing >> Compressor, A/C >> Diagnosis And Testing >> A/C Clutch Coil >> Coil Resistance Test

Coil Resistance Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. 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 coil connector.
  3. Use an ohm meter and Back Probe Tool (special tool #6801, Terminal Probe) and measure the resistance of the A/C clutch coil at the coil connector terminals.
  4. See A/C CLUTCH COIL SPECIFICATIONS  table for acceptable A/C clutch coil resistance. Specifications apply for a work area temperature of 21° C (70° F).
    1. If the A/C clutch coil reading is below specifications, the coil is shorted and must be replaced.
    2. If the A/C clutch coil reading is above specifications, the coil is open and must be replaced.
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