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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Vertical Acceleration Sensor: Testing and Inspection

Chassis acceleration sensor
1. With component connector still connected, connect voltmeter between terminal 3 and ground.
2. Turn ignition switch ON.
3. Tap the chassis acceleration sensor bracket with wrench.
4. Verify that voltage spike (less than 1 V) is output from chassis acceleration sensor.




5. If no voltage spike is observed, replace chassis acceleration sensor.