Communication Error (CAN)

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A general communication error has occurred on the CAN bus with the battery. This indicates a problem with the fundamental data exchange process, preventing proper interaction between the charger and the battery's management system.

• Physical damage or loose connections in the CAN bus cabling, leading to intermittent or complete signal loss.
• Significant electrical interference or noise on the CAN bus lines, corrupting data packets.
• Incorrect CAN bus configuration settings (e.g., incorrect baud rate, improper termination resistors) in either the charger or the battery.
• A temporary communication glitch that resolves after a system reset.

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1. 1

   Inspect the entire CAN bus cable for physical damage, ensure proper and secure connections, and verify correct termination resistor values.

2. 2

   Check for potential sources of electromagnetic interference (EMI) near the CAN bus wiring and separate them if possible.

3. 3

   Verify the CAN bus communication settings (baud rate, IDs) in both the charger and the battery's BMS to ensure they are identical.