P0622 OBD Trouble Code

1 result found

P0622 - GM
Type Powertrain - Computer and Auxiliary Outputs - ISO/SAE Controlled
Description

Generator 'F' Terminal Circuit Conditions

Cause

Key on Test: No CKP, CMP or Generator codes set, key in RUN position with engine off, then the PCM detected a Generator PWM signal that was more than 65%, conditions met for 5 seconds Run Test: No CKP, CMP or Generator codes set, key in RUN position with engine off, then the PCM detected a Generator PWM signal that was less than 5%, conditions met for 15 seconds

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