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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Generator L Terminal

The L-terminal circuit connects the generator to the PCM. The PCM applies ignition voltage to the L-terminal signal circuit through a resistor. The PCM should detect a low signal voltage input when the key is in the RUN position with the engine OFF, or when the charging system malfunctions. During engine operation, the PCM should detect a high signal voltage.