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Home >> Mitsubishi >> 2002 >> Lancer LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0506: Idle Control System Rpm Lower Than Expected >> Troubleshooting Hints

Troubleshooting Hints

The most likely causes for this DTC to be set are:

Idle air control motor failed.
Open or shorted idle air control motor circuit or loose connector.
ECM (M/T) or PCM (A/T) failed.

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