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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Checking the Voltage

Testing Methods: Checking The Voltage:





1. Disconnect the load.
2. Connect the voltmeter's negative lead to a good grounding point.
3. Connect the voltmeter's positive lead to the connector pin that is to be checked
4. If the voltage here should be the same as battery voltage, it ought not to differ by more than about 1V.