Circuit Description
WARNING: This page is about a different variant/trim than selected.
Knock Sensor (KS) module is located in PCM. KS module monitors both knock sensors to determine if detonation is present. If excessive knock is present, PCM will retard timing until knock goes away. When the KS module is missing or malfunctioning, the KS circuit voltage going to PCM will go low. PCM interprets this low signal as spark knock.