Conditions Which Generate This Code:
The ECM detects the following conditions:
• The battery voltage to the ECM is less than 9.0 VDC for 12 volt systems or 18.0 VDC for 24 volt systems.
• The engine is running.
System Response:
The ECM will use a default torque map. The check engine lamp will illuminate.
Possible Performance Effect:
The engine will be derated.
Troubleshooting:
This diagnostic code could indicate a faulty charging system or poor battery connections.
Perform the following diagnostic procedure: “Ignition Key Switch Circuit and Battery Supply Circuit – Test”
Results:
• OK – STOP.
