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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P0325: Knock Sensor Module Circuit >> Description
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DTC P0325: Knock Sensor Module Circuit: Description

Knock Sensor (KS) module is integrated in PCM. Input signals from KS is used 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.