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DTC Detecting Condition and Trouble Area

DTC DETECTING CONDITION AND TROUBLE AREA

DTC detecting condition Trouble area
Monitor signal of radiator cooling fan relay No. 2 and No. 3 is lower than specified voltage for 5 sec. even though radiator cooling fan relay No. 1 is ON and radiator cooling fan relay No. 2 and No. 3 are OFF.
(1 driving cycle detection logic but MIL does not light up)
  • Radiator cooling fan relay No. 2 and/or its circuit
  • Radiator cooling fan relay No. 3 and/or its circuit
  • ECM
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