Over-current of Charge Current (ECM)

What does 3 mean?

An over-current condition has occurred in the charge current path to the Capacitor Modules of the ECM. This suggests an issue with the charging circuit or a fault in the capacitor modules themselves.

• Excessive current flowing into the battery or DC bus during charging.
• Battery internal resistance is too high, limiting charge acceptance.
• Faulty charging circuit or power supply unit.
• Incorrect battery charging parameters configured (e.g., P5-xx).
• External voltage source exceeding battery's maximum charge voltage.

Click steps to track your progress.

1. 1

   Inspect the wiring and connections to the Capacitor Modules.

2. 2

   Verify the operation of the ECM's control module, especially its charging circuit.

3. 3

   Check the Capacitor Modules for any signs of damage or overheating.