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Home >> Kia >> 2025 >> Soul EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (4 Of 6) >> DTC P0638-00: Throttle Actuator Control Range/Performance >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy Case 1
  • TPS adaptation condition check
  • Poor connection or damaged connector
  • Faulty ETC motor
  • Faulty TPS
Case 2
  • ETC Limp Home position check
Case 3
  • Lower mechanical stop adaptation voltage range check
Enable Conditions
  • During TPS adaptation
Threshold Value Case 1
  • TPS adaptation is requested but not possible
Case 2
  • Difference between throttle sensor voltage in limp home and limp home set point is higher than 0.3V
Case 3
  • Difference between throttle sensor voltage in lower mechanical stop position and lower mechanical stop position set point is higher than 0.3V
Diagnostic Time
  • 1.2s
MIL ON Condition
  • 1 driving cycle