Make the following checks and take the following actions to assure the integrity of the CAN bus:

• There are no CAN groups with the same selected address.
• The node selector of the COMPCI must be 0.• Line terminators.• Ground connection.• CAN cable continuity.• CAN cable connectors (if necessary, unplug them and plug them back in).
• Ribbon (flat) cable connection between the nodes and the power supply.
• Power supplies of the CAN groups (levels, possible resets, etc.).
• See if all the modules are recognized in diagnosis mode.• Use the itfcCAN.exe tool to check the CAN bus (only service technicians).

If the error persists, contact the Service Department.

0System error.1CAN error.

2 Error in Tx/Rx queues.

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