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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Barometric Pressure Sensor: Testing and Inspection

Fig. 49 Testing atmospheric pressure sensor.:







1. Connect voltmeter to sensor terminal D and ground, Fig. 49.
2. Turn ignition switch On and observe voltage reading.
3. Voltage should read approximately 4 volts at sea level and approximately 3 volts at altitudes above 6,500 ft.