subaru Workshop Repair Guides

Subaru Workshop Service and Repair Manuals

Knock Sensor|Locations|Page 2236 > < Knock Sensor|Locations
Page 1
background image

Knock Sensor: Description and Operation

-

The knock sensor is installed on the cylinder block, and senses knocking signals.

-

This knock sensor is a piezo-electric type which converts knocking vibrations into electric signals.

-

It consists of a piezo-electric element, weight, and case. If knocking occurs in the engine, the weight in the case moves causing the piezo-electric
element to generate a voltage.

-

The knock sensor is connected to the bulkhead harness through the knock sensor harness.

Knock Sensor|Locations|Page 2236 > < Knock Sensor|Locations