P0622 OBD II Trouble Code Generator Field F Control Circuit Malfunction
How to easily diagnose, repair, and info on causes of a P0622 trouble code that indicates a detected failure of the generator lamp F control circuit.
Symptoms of P0622 OBD II Trouble Code
- Engine drivability issues
- Engine stall when idling
- Inadvertent engine shutoff
- Delayed engine cranking
- Other stored codes
Common Causes of P0622 OBD II Trouble Code
- Faulty PCM
- PCM programming error
- Open or shorted generator field control circuit
- Defective alternator/generator
Severity of P0622 OBD II Trouble Code
Internal control module codes be considered severe. A stored code P0622 could result in a variety of drivability concerns, including a no-start and/or dead battery condition.