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Home >> Chevrolet >> 1985 >> Nova CL, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor System >> Servicing >> Cold Mixture Heater System >> CHM Relay

CHM Relay

  1. Check for continuity between terminals 1 and 2. Check that there is no continuity between terminals 3 and 4. See Fig 1.
    Fig 1: Checking CMH Relay
    G5004
  2. Check for continuity between terminals 3 and 4 with battery voltage applied to terminal 1 with terminal 2 grounded.
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