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Home >> Kia >> 2017 >> Rio SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P0638: Throttle Actuator Control Range/Performance >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Limp-home check
  1. Throttle stuck
  2. Open in motor circuit
  3. Faulty motor
  4. Faulty ECM
Enable Conditions
  • Ig On
Threshold Value
  • When the difference between actual and target throttle position is higher than limit value after ETC motor drives.
Diagnostic Time
  • 0.5 sec
MIL ON Condition
  • 1 driving cycle
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