Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
If it fails:
lemon-manuals.org.ua
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Knock Sensor: Testing and Inspection
The
knock sensor can be tested with a digital voltmeter. Sensor output should be
between 80 mV and 4 volts with the engine running
between 576 and 2,208 rpm.
-
If the output falls outside of this range a DTC will be set.