DTC P0622: Generator Field Not Switching Properly: Description
Generator field switching is monitored when ignition is on and engine is running. DTC may be stored in Powertrain Control Module (PCM) if PCM tries to regulate generator field with no result during monitoring. Possible causes are:
- Generator Field Wiring Harness Intermittent Condition
- Generator Field Driver Circuit Open Or Shorted To Ground
- Generator Field Resistance Is More Than 5 Ohms
- Generator Field Source B(+) Circuit Open
- Faulty PCM