lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 3248 > < Diagram Information and Instructions|Page 3246
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Knock Sensor: Description and Operation

KNOCK SENSOR

knock sensors are fitted one to the right bank and left bank of the cylinder block to detect engine knocking. This sensor contains a piezoelectric element
which generates a voltage when it becomes deformed, which occurs when the cylinder block vibrates due to knocking. If engine knocking occurs,
ignition timing is retarded to suppress it.

Diagram Information and Instructions|Page 3248 > < Diagram Information and Instructions|Page 3246