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Prowler V6-3.5L VIN G (1999)

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Knock Sensor > Component Information > Specifications > Page 435

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Knock Sensor: Testing and Inspection

The engine knock sensor is affected by a number of factors. A few of these are: ignition timing, cylinder pressure, fuel octane, etc. The knock sensor
generates an AC voltage whose amplitude increases with the increase of engine knock. 

The knock sensor can be tested with a digital voltmeter. The RMS voltage starts at about 20mVac (at about 700 rpm) and increases to approximately 
600 mVac (5,000 rpm)

If the output falls outside of this range a DTC will be set.

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Knock Sensor > Component Information > Specifications > Page 435

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