P0560

DTC P0560
ECM reads low battery voltage at engine speeds where alternator should be operating (Driving Cycle A)

Possible causes by suggested order of priority:
- Connector C636.
- ECM battery voltage measurement.

Connector C636.
- Check for connector not correctly latched, backed out pins, damaged pins, corroded pins

ECM battery voltage measurement.
- GEMS ECM measured low battery volts.
- This fault indicates that during driving conditions where the alternator should be generating power, the ECM saw a battery voltage significantly below 12V indicating an alternator fault.