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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P0638: Throttle Actuator Control Range/Performance (Bank 1) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible Cause
DTC Strategy Case 1
  • TPS adaptation condition check
  1. Poor connection or damaged harness
  2. Faulty etc. Motor
  3. 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 Case 1
  • TPS adaptation is requested but not possible
Case 2
  • Difference between Throttle sensor voltage in limphome and limphome setpoint > 0.3V
Case 3
  • Difference between Throttle sensor voltage in lower mechanical stop position and lower mechanical stop position setpoint > 0.3V
Diagnostic Time
  • 1.2 sec.
Limp-Home
  • Forced limited RPM mode: The PCM limits engine speed to 1500rpm
  • Electrical check of the etc. system is prohibited
MIL On Condition
  • Immediate
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