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Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (3.6L - DTCS P0501 To P1128) >> Diagnosis And Testing >> P0506-Idle Speed Performance Lower Than Excepted >> Theory Of Operation

Theory Of Operation

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The objective of the Idle "Speed Rationality is to monitor the ability to achieve and maintain a steady idle condition. The monitor will judge the functionality of the idle speed control system by monitoring RPM during idle. If RPM does not come within a calibrated dead band of target idle speed, a timer is started. If the timer reaches its maximum threshold without any sign of the RPM trending towards control, a soft failure is generated.