Battery Data Cannot Be Queried (CAN)

What does 52 mean?

Although a CAN connection might be physically present, the charger is unable to successfully query or receive valid data packets from the battery. This indicates a problem with data integrity or protocol, preventing essential information exchange.

• Data corruption or errors occurring on the CAN bus, possibly due to electrical noise or signal integrity issues.
• Incorrect CAN bus communication protocol or baud rate settings between the charger and the battery's BMS.
• An internal fault within the battery's BMS or communication module that prevents it from correctly transmitting data.

Click steps to track your progress.

1. 1

   Verify the CAN bus wiring for proper shielding and grounding to minimize noise or interference.

2. 2

   Check the charger's and the battery's CAN communication settings, including baud rate and message IDs, to ensure they match.

3. 3

   Perform a soft reset on the battery's BMS, if such a function is available, to clear any temporary communication glitches.