Test execution:The test of the CAN shall be done periodically during the entire time CAN is active. Information:If the MCU CAN error is set passive and any of following short circuits are detected the fault shall be active CANH x VBAT (communication still possible, “hidden” bus failure) CANH x VCC (communication still possible, “hidden” bus failure) CANH x GND (communication not possible) CANL x VBAT (communication not possible) CANL x VCC (communication not possible) CANL x GND (communication still possible, “hidden” bus failure). Validation:The fault shall be set as 'test failed' when the fault has been active for 10 consecutive tests.2 operation cycles to confirmed. Invalidation:The fault shall be set as deactivated when the test has passed for 10 consecutive executions starting from when the fault is active.

Different CAN HW faults, e.g. CAN shorted to GND