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Home >> Hyundai >> 2020 >> Santa Fe SE, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 4WD Control System Diagnosis >> DTC P0602: Control Module Programming Error >> DTC Information And Inspection >> DTC Setting Condition
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DTC Setting Condition

Trouble shooting Condition Possible Cause
Main action
  • Internal monitoring of the 4WD ECM
  1. 4WD ECM
  2. ECU Connector
  3. Wire harness
Prerequisite condition
  • Turn the ignition switch on or start the engine
Threshold value
  • The ECU H/W has a defect
Diagnosis time
  • Immediately
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