Operation CHARM: Car repair manuals for everyone.
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 or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Knock Sensor: Testing and Inspection




(_P0325_)
- The scan tool indicates Diagnostic Trouble Code (DTC) P0325: A problem in the circuit of the Rear Knock Sensor (KS1).
(_PO330_)
- The scan tool indicates Diagnostic Trouble Code (DTC) P0330: A problem in the circuit of the Front Knock P0330 Sensor (KS2).