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Home >> Saturn >> 2003 >> Vue 3.0 B, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.0L >> Diagnostic Tests >> DTC P0621: Generator Light L-Terminal Control Circuit >> Conditions For Setting DTC

Conditions For Setting DTC

During key ON test, the ECM detects a high signal voltage on the generator turn on signal circuit for at least 5 seconds.

During the RUN test, the ECM detects a low signal voltage on the generator turn on signal circuit for at least 10 seconds.

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