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)

Or, hide this message: temporarily or permanently

Acceleration/Deceleration Sensor: Testing and Inspection






1. Turn the ignition switch to ON, then measure the voltage between the output terminal (b) and ground terminal (a) of the G sensor connector.





a. Level condition.
- Voltage 2.4-2.6 V.





b. G sensor vertical (arrow up).
- Voltage 1.3-1.7 V.





c. G sensor vertical (arrow down).
- Voltage 3.3-3.7 V.
2. If not as specified, replace the G sensor.