One of our battery management systems which uses TCAN1042V-Q1, had a failure case in which we saw that VIO-GND has a resistance of 1 ohm, CANH-GND has a resistance of 22kohm. All other pins are coming as open when disconnected from the circuit and no power is given to the IC. Rest all parts which are connected in parallel to VIO-GND are working OK, only part affected is the CAN IC. Schematic used is attached (Please ignore the minor mistakes in pin naming), CANH, CANL, GND goes onto the connector.
Can you please tell us what could have caused such failure? Please let us know if you have any other question. The failure occurred on a running vehicle.