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Home >> Buick >> 2000 >> Century Custom >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Control System - Self-Diagnostics - 3.8L) >> Diagnostic Tests >> DTC P0325: Knock Sensor Module Circuit >> Circuit Description

Circuit Description

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Knock Sensor (KS) module is integrated with PCM. KS module reads KS to determine if excessive detonation (knock) is present. If excessive knock is present, PCM will retard timing until knock goes away. When KS module is missing or malfunctioning, PCM will set DTC. Conditions for setting DTC:

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