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Home >> Kia >> 2004 >> Rio Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Fault Isolation >> DTC Troubleshooting >> DTC P0506: Idle Control System - Rpm Lower Than Expected >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring high deviation between target idle speed and actual engine speed
  • Restriction in intake or exhaust system
  • Carbonustment of the accelerator cable
  • Contact resistance in connectors
  • Faulty ISC valve
Enable Conditions
  • Vehicle speed = 0
  • 76°C (168.8°F) < Coolant temperature < 110°C (230°F)
  • Engine load < 283 mg (0.6 mlb)/stk
  • No relevant failure
  • Battery voltage > 10V
 
Threshold Value
  • (Engine speed - target idle speed) < -100 rpm
Diagnostic Time
  • 28.5 sec. continuous