Applicable Systems
PowerCommand
Symptoms
Warning - CAN protocol fault. The CAN bus protocol has detected a communication error.
Possible Causes
- CAN bus wiring fault or termination issue
- ECU CAN interface failure
Troubleshooting Steps
- Step 1: Check the CAN bus wiring and termination resistors
Wiring is damaged or termination is incorrect - Step 2: Verify the ECU CAN communication status
ECU is not communicating on the CAN bus
How to Reset
To reset: Fix the CAN bus wiring or ECU, then acknowledge the warning.
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Source: Cummins Power Generation Control Manual, Cummins Inc.
Category: Generator
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