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Knock Sensor Module: Description and Operation

Knock Sensor Module
The PCM contains a knock sensor (KS) module. The KS module contains the circuitry which allows the PCM to utilize the KS signal and diagnose the KS sensor and the KS circuitry. If the KS module is missing or faulty, a continuous knock condition will be indicated, and the PCM will set a DTC.

Although it is a plug-in device, the KS module is not replaceable. If the KS module is faulty, the entire PCM must be replaced.