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Defroster Timer

  1. Condition 1
    1. Alternator level high & defroster is OFF (Defroster relay = OFF and defogger activity = OFF)
    2. Defroster is activated (defroster switch = ON)
    3. Defroster outputs are turned ON
  2. Condition 2
    1. Alternator level high & defroster is ON
    2. Defroster switch Input pushed again or T1 delay has elapsed since defroster has been turned on
    3. Defroster outputs are turned OFF
  3. Condition 3

    If alternator input is changed to low, defroster outputs should be turned OFF immediately.

Fig 1: Defrost Timer On/Off Time Chart
G00320839Courtesy of KIA MOTORS AMERICA, INC.