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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 P0506: Idle Air Control System-RPM Lower Than Expected >> 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
  • Monitoring deviation between target idle speed and actual engine speed
  1. Restriction in intake or exhaust system
  2. Contact resistance in connectors
  3. Faulty etc.
Enable Conditions
  • Coolant temperature >73°C(163°F)
  • Engine idle status (closed throttle valve & vehicle speed=0)
  • Idle speed controller active (idle status)
  • 11< Battery voltage <16
  • After engine start >20 sec.
  • No relevant failure
Threshold Value
  • Nominal Idle Speed - Engine Speed > 100rpm
Diagnostic Time
  • 21 sec.
Mil On Condition
  • -
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