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

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Knock Sensor Module: Service and Repair

Knock Sensor Installation:




Squeezing Knock Sensor Tabs:






REMOVE OR DISCONNECT
1. Remove the PCM. Refer to PCM/EEPROM Replacement/Programming.
2. Remove the access cover from the PCM.
3. Carefully squeeze the latches on the Knock Sensor (KS) Module and carefully remove the KS Module. Apply pressure in the direction as shown.

INSTALL OR CONNECT
1. Carefully insert the KS module into the socket.
2. Carefully press down on the KS Module until the latches catch.
3. Install the PCM access cover.
4. Install the PCM.