Operation CHARM: Car repair manuals for everyone.
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Circuit Description

Battery Output Terminal (B+) Circuit 30-BA6 (RD)
The generator output is supplied through the battery positive output (B+) terminal on the rear of the generator to the battery and electrical system.

A Circuit 30-BA10 (RD)
The A circuit is used to sense battery voltage. This circuit is also used to supply current to the generator field (rotor) and to turn on the voltage regulator which determines generator output. It is also used to turn the charging system warning indicator on if there is a fault in the charging system operation.

Circuit 5-EB6 (BU)
This is the generator communication (GEN COM) circuit. The PCM determines the optimal voltage setpoint for the charging system and communicates this information to the voltage regulator via the GEN COM circuit.

Circuit 4-EB6 (GY)
The generator monitor (GEN MON) circuit communicates the generator load and error conditions to the PCM.